Clean Energy Ventures

Queens Carbon is focused on developing a hydrothermal processing technology aimed at significantly reducing energy consumption in industrial applications. The company's innovative system minimizes the energy required for calcination and material synthesis, which is crucial for carbon capture and the production of carbon-neutral cement. By enhancing energy efficiency, Queens Carbon enables industries to lower their greenhouse gas emissions, thereby contributing to sustainable development and addressing the challenges posed by climate change.

DG Matrix is a company that specializes in innovative energy storage and solar solutions aimed at promoting the electrification of various sectors, including electric vehicles. Their offerings include single-unit L3 DC fast charging technology, designed for efficient and optimized charging solutions. DG Matrix focuses on integrating its technologies with microgrids and energy infrastructure to provide effective services for electric vehicle charging, fleet charging, and power electronics. By prioritizing reduced material usage and a smaller ecological footprint, the company aims to achieve significant emissions reductions on a large scale, making electrification more accessible and affordable for clients.

MacroCycle Technologies is a company developing a chemical recycling process to convert polyethylene terephthalate (PET) and polyester-fiber waste into virgin-grade plastics. Their proprietary technology, based on synthesizing cyclic macromolecules, enables the production of recycled PET with lower energy use than traditional methods. This process offers a sustainable, zero-carbon, and cost-competitive solution for plastic upcycling, contributing to a circular economy.

Advanced Ionics specializes in innovative electrolyzer technology aimed at producing low-cost green hydrogen on-site for industrial applications. By leveraging existing industrial infrastructure and focusing on minimizing electricity consumption, the company seeks to make green hydrogen production more economical. Advanced Ionics' technology is versatile, applicable in various sectors including ammonia and fertilizer production, hydrogenation, metal fabrication, glass manufacturing, methanol synthesis, synthetic fuels, chemicals, and power generation. Through its solutions, the company supports decarbonization efforts, helping clients to significantly reduce carbon dioxide emissions associated with hydrogen production.

Electrified Thermal Solutions is a Massachusetts-based company founded in 2021 that focuses on decarbonizing industrial processes by replacing fossil fuels with renewable heat. Originating from research at MIT's Department of Nuclear Science and Engineering, the company has developed innovative energy storage technology that converts intermittent renewable electricity into constant heat. This is achieved through the use of low-cost conductive ceramic blocks, allowing various industrial sectors to utilize zero-carbon heat effectively. By providing a sustainable alternative for furnaces, turbines, boilers, and kilns, Electrified Thermal Solutions aims to drive an energy revolution and significantly reduce carbon emissions in industry.

ConnectDER is a solar technology company based in Philadelphia, Pennsylvania, founded in 2011. It specializes in designing and manufacturing meter collars that facilitate the connection of distributed energy resources (DERs) such as solar photovoltaic systems, battery storage, and electric vehicle charging to residential homes and the grid. By transforming the electricity meter socket into an interconnection point, ConnectDER enhances the integration and management of DERs. The company also offers ConnectDER Cloud, a system that allows fleet operators to access metering data, manage operational parameters, and control firmware remotely. This technology improves the efficiency and resilience of home energy systems while benefiting users, the grid, and the environment.

Transaera is a company focused on developing advanced air conditioning solutions that prioritize energy efficiency and environmental sustainability. By utilizing a novel desiccant material, Transaera's cooling systems effectively remove moisture from the air prior to the cooling process, significantly reducing energy consumption and greenhouse gas emissions. These innovative systems are designed for both residential and commercial applications, providing affordable and environmentally friendly cooling options that enhance indoor comfort while minimizing the impact on global climate and local grid infrastructure. Through its technology, Transaera aims to improve productivity and comfort in indoor environments while contributing to a more sustainable future.

Lithios is a technology company specializing in advanced lithium extraction through innovative electrochemical processes. The company focuses on capturing and releasing lithium from complex mixtures, addressing the growing demand for lithium in various industries, particularly in the electric vehicle sector. By leveraging breakthroughs in applied electrochemistry, Lithios offers solutions that facilitate low-cost and selective extraction of lithium from untapped brine resources. Their sustainable electrochemical methods aim to enhance the efficiency and effectiveness of lithium extraction, contributing to a more sustainable future in energy and technology.

Ayrton Energy, founded in 2021, is focused on enhancing energy security through innovative hydrogen storage technology. The company specializes in developing a dense storage medium for hydrogen, enabling its storage in liquid form. This approach allows for safer and more efficient handling and transportation of hydrogen, differentiating it from traditional fuels like gasoline. Ayrton Energy's technology facilitates the use of existing infrastructure, including tanks, rail cars, transport trucks, and pipelines, to deliver hydrogen effectively. By providing solutions for hydrogen storage and transportation, Ayrton Energy aims to support clients in utilizing hydrogen as a fuel source for power generation, thereby contributing to overall energy security.

PeakSyncer, a subsidiary of Zhong Xi Group, LLC, specializes in an AI-powered cloud platform designed to optimize energy management for utility companies. The platform leverages artificial intelligence to automate and streamline demand response programs, reducing peak energy loads. It offers real-time reporting, seamless data tracking, and integration with existing infrastructure, ensuring smooth implementation. PeakSyncer also facilitates compliance with regulatory requirements and supports sustainable energy ecosystems by engaging customers in demand response initiatives. The platform is scalable, continuously learning from past syncs to improve accuracy and efficiency, and offers 24/7 monitoring and dedicated support.

PeelON develops biodegradable packaging designed to extend the shelf life of fresh produce by creating a proprietary microclimate around items. Its natural-material blend preserves freshness and quality longer, reducing food waste and the need for frequent transport and storage. The packaging is fully biodegradable and compostable, offering an eco-friendly alternative that lowers the carbon footprint of the fresh produce supply chain. By enabling sustainable, efficient packaging, PeelON addresses plastic pollution and contributes to more responsible handling of perishable goods.

Travertine is a company focused on carbon dioxide removal and industrial chemical production, aiming to mitigate the environmental impact associated with the extraction of elements for renewable energy. Utilizing a proprietary electrochemical process, Travertine converts carbon dioxide from the atmosphere into mineral forms while simultaneously producing sulfuric acid, which is essential for critical element extraction and fertilizer production. The company effectively recycles sulfate wastes to generate sulfuric acid, thereby minimizing chemical waste during these processes. Additionally, Travertine generates high-quality carbon credits through its direct air capture and mineralization efforts, contributing to a sustainable approach in mining and fertilizer industries.

Aepnus Technology develops electrolysis equipment for refining minerals and desalinating water. The company's low-cost electrolysis systems are designed to electrify and decarbonize the production of commodity chemicals, supporting the transition to a carbon-free industry. By enabling the manufacture of electrified chemicals, the company aims to reduce carbon emissions and provide a path for more sustainable chemical production.

Ndustrial provides analytical engines that enhance businesses' production control, improve energy efficiency, and minimize waste. Primarily serving mid-tier manufacturers, they integrate legacy data, streamline Industrial IoT deployments, and host predictive control algorithms to optimize operations globally.

Evari is a clean-tech firm developing next-generation tiny, oil-free turbocompressors for heating and cooling applications to help with the global energy transition and expedite the decarbonization of various industries.

UpSmith is a company focused on improving the lives of individuals by providing access to training in practical skills and sustainable career paths. It has developed a vertical software as a service (SaaS) platform aimed at assisting skilled trades businesses in their growth while supporting skilled workers in their career development. The technology offered by UpSmith is designed to enhance workforce productivity, incorporating gamification elements that incentivize frontline workers to engage in value-creating behaviors. By utilizing this innovative approach, UpSmith enables its clients to increase revenue, boost output, and reduce costs, ultimately fostering a more efficient and effective skilled trades sector.

Altus Thermal, founded in 2019 and based in Boston, Massachusetts, focuses on transforming thermal energy solutions for residential settings. The company aims to enhance efficiency, comfort, and user experience while providing benefits to the electrical grid. Altus Thermal develops energy technology designed to electrify residential heating, cooling, and hot water systems. By maximizing performance and facilitating better integration with renewable energy sources and other distributed energy resources, the company enables homeowners to electrify their living spaces in an efficient and cost-effective manner.

Aqua Membranes develops membrane elements for reverse osmosis filtration, featuring three-dimensional printed spacer technology that prints spacers directly onto spiral-wound membranes. This approach replaces traditional feed spacer mesh, improving flow, enlarging effective membrane surface area, and reducing fouling and energy use. The company’s elements are used in home and commercial RO systems, seawater desalination, food and beverage processing, and industrial processes, with applications across filtration and concentration steps. The objective is to deliver higher efficiency and a more sustainable water future by enabling stronger performance in membrane filtration.

Advanced Ionics specializes in innovative electrolyzer technology aimed at producing low-cost green hydrogen on-site for industrial applications. By leveraging existing industrial infrastructure and focusing on minimizing electricity consumption, the company seeks to make green hydrogen production more economical. Advanced Ionics' technology is versatile, applicable in various sectors including ammonia and fertilizer production, hydrogenation, metal fabrication, glass manufacturing, methanol synthesis, synthetic fuels, chemicals, and power generation. Through its solutions, the company supports decarbonization efforts, helping clients to significantly reduce carbon dioxide emissions associated with hydrogen production.

Carbon Upcycling is a carbon technology company focused on decarbonizing hard-to-abate industries through its patented technology. This innovation allows for the permanent storage of carbon dioxide in industrial byproducts and minerals, effectively transforming them into high-performance alternative materials for cement and concrete. By doing so, Carbon Upcycling aims to significantly reduce the carbon footprint of industrial processes while diverting materials from landfills, thereby supporting a circular economy. The company has garnered international recognition for its advancements, being awarded the Carbon XPrize’s X-Factor, named NRMCA’s 2023 Innovative Company, and included in Cleantech Group’s Global Cleantech 100 and Foresight 50’s Canada’s Most Investable Cleantech Ventures.

NitroFix is a company focused on producing ammonia through an innovative manufacturing technology that eliminates carbon emissions. By utilizing an electrochemical reaction enhanced by a novel catalyst, NitroFix achieves a zero-carbon footprint in its ammonia generation process. This sustainable production solution not only stabilizes pricing but also facilitates local ammonia production for various applications. NitroFix positions its green ammonia as a renewable energy source, a carrier for hydrogen fuel, and a fundamental component for nitrogen fertilizers, contributing to efforts aimed at reducing the global carbon footprint.

OxCCU develops renewable energy technology to enable a circular economy for fuels, chemicals, and plastics. The technology combines carbon dioxide from the atmosphere with hydrogen from water and renewable electricity to produce fuels, chemicals, and biodegradable plastics and is positioned to deliver the lowest-cost Power to Liquids pathway.

ConnectDER is a solar technology company based in Philadelphia, Pennsylvania, founded in 2011. It specializes in designing and manufacturing meter collars that facilitate the connection of distributed energy resources (DERs) such as solar photovoltaic systems, battery storage, and electric vehicle charging to residential homes and the grid. By transforming the electricity meter socket into an interconnection point, ConnectDER enhances the integration and management of DERs. The company also offers ConnectDER Cloud, a system that allows fleet operators to access metering data, manage operational parameters, and control firmware remotely. This technology improves the efficiency and resilience of home energy systems while benefiting users, the grid, and the environment.

QEA Tech is a software company that combines AI, drone technology, and thermal imaging to provide insights into the building envelope. They process thousands of images using its proprietary software, transforming each pixel into a comprehensive 3D model of the building for quantifiable data and insights. Using 10,000+ high-resolution drone images, proprietary QEA Tech software converts each pixel into quantifiable data and a comprehensive 3D model before uploading each image to the cloud-based dashboard for 24/7 access. The QEA System identifies where and how much energy is being wasted in a building's envelope, allowing you to prioritize repairs and calculate payback and ROI. The QEA Solution calculates Negawatt (NKwh), which quantifies energy gushers (heat and cool air escaping) through the walls, windows, doors, and roof of the building.

VoltServer develops innovative power distribution products using its patented Digital Electricity technology. It manufactures solutions that deliver touch-safe electricity via off-the-shelf data cables, offering significant cost savings, increased speed, distance, efficiency, intelligence, and flexibility compared to traditional electrical installations. Established in 2011, VoltServer serves diverse industries such as telecommunications, data centers, renewable energy, electric vehicles, indoor agriculture, and commercial buildings.

Kuva Systems develops an industrial IoT solution that continuously monitors and quantifies methane and VOC emissions with an infrared imaging system. The technology automatically detects leaks, measures emission levels, and provides operators with annotated video clips, while visualizing events in day or day-night modes and transmitting quantified visuals to the cloud in real time, enabling oil and gas operators to monitor assets more cost-effectively. Founded in 2015 and headquartered in Cambridge, Massachusetts, Kuva Systems focuses on enabling safer, more efficient emissions surveillance for industrial facilities.

Noon Energy is a Palo Alto, California-based company founded in 2018 that focuses on developing innovative flow battery technology for economical long-duration energy storage. This technology is designed to convert intermittent renewable electricity, such as solar and wind energy, into on-demand power, allowing for a more reliable energy supply. Noon Energy's rechargeable batteries utilize low-cost storage media that decouples energy and power capacity, providing long-duration storage while eliminating the need for mining precious metals. By enabling customers to scale up the use of renewable electricity, Noon Energy aims to reduce reliance on fossil fuels, as well as decrease pollution and emissions associated with energy production.

LineVision, Inc. is a company that specializes in developing advanced transmission line monitoring systems for electric utilities. Founded in 2018 and headquartered in Somerville, Massachusetts, LineVision offers a patented non-contact sensor technology that enables real-time monitoring and analytics of overhead power lines. This system provides crucial insights into the health and performance of transmission lines, allowing utilities to enhance capacity, reliability, and safety without the need for scheduled outages or specialized installation equipment. Key features of LineVision's platform include asset management, dynamic line ratings, and a secure web interface for data and analytics. By leveraging these capabilities, LineVision supports utility partners in their efforts to improve grid resilience and facilitate the energy transition.

GreenPortfolio facilitates sustainable investing by offering climate impact ratings for investments and AI-driven matching with financial advisors.

Electrified Thermal Solutions is a Massachusetts-based company founded in 2021 that focuses on decarbonizing industrial processes by replacing fossil fuels with renewable heat. Originating from research at MIT's Department of Nuclear Science and Engineering, the company has developed innovative energy storage technology that converts intermittent renewable electricity into constant heat. This is achieved through the use of low-cost conductive ceramic blocks, allowing various industrial sectors to utilize zero-carbon heat effectively. By providing a sustainable alternative for furnaces, turbines, boilers, and kilns, Electrified Thermal Solutions aims to drive an energy revolution and significantly reduce carbon emissions in industry.

Travertine is a company focused on carbon dioxide removal and industrial chemical production, aiming to mitigate the environmental impact associated with the extraction of elements for renewable energy. Utilizing a proprietary electrochemical process, Travertine converts carbon dioxide from the atmosphere into mineral forms while simultaneously producing sulfuric acid, which is essential for critical element extraction and fertilizer production. The company effectively recycles sulfate wastes to generate sulfuric acid, thereby minimizing chemical waste during these processes. Additionally, Travertine generates high-quality carbon credits through its direct air capture and mineralization efforts, contributing to a sustainable approach in mining and fertilizer industries.

Itselectric specializes in providing curbside electric vehicle (EV) charging solutions tailored for urban environments, aiming to facilitate the widespread adoption of electric vehicles. The company addresses infrastructure challenges by offering affordable public charging services that enhance access to charging stations. Utilizing a behind-the-meter approach, Itselectric draws excess electrical supply from nearby buildings, allowing property owners to benefit financially while contributing to a cleaner environment. By increasing the availability of EV charging points, Itselectric supports the transition to electric vehicles, promoting healthier communities with improved air quality.

Advanced Ionics specializes in innovative electrolyzer technology aimed at producing low-cost green hydrogen on-site for industrial applications. By leveraging existing industrial infrastructure and focusing on minimizing electricity consumption, the company seeks to make green hydrogen production more economical. Advanced Ionics' technology is versatile, applicable in various sectors including ammonia and fertilizer production, hydrogenation, metal fabrication, glass manufacturing, methanol synthesis, synthetic fuels, chemicals, and power generation. Through its solutions, the company supports decarbonization efforts, helping clients to significantly reduce carbon dioxide emissions associated with hydrogen production.

Carbon Upcycling is a carbon technology company focused on decarbonizing hard-to-abate industries through its patented technology. This innovation allows for the permanent storage of carbon dioxide in industrial byproducts and minerals, effectively transforming them into high-performance alternative materials for cement and concrete. By doing so, Carbon Upcycling aims to significantly reduce the carbon footprint of industrial processes while diverting materials from landfills, thereby supporting a circular economy. The company has garnered international recognition for its advancements, being awarded the Carbon XPrize’s X-Factor, named NRMCA’s 2023 Innovative Company, and included in Cleantech Group’s Global Cleantech 100 and Foresight 50’s Canada’s Most Investable Cleantech Ventures.

SparkMeter develops smart electricity metering systems and grid management software for underserved markets. Its products include residential and commercial meters, along with software solutions that enhance grid efficiency, enable prepaid billing, and facilitate remote monitoring. Founded in 2012, SparkMeter operates from Washington D.C. and Nairobi, Kenya.

Copper Labs, Inc. is a technology company specializing in Internet of Things products and services aimed at enhancing energy management for utilities and consumers. Established in 2016 and headquartered in Boulder, Colorado, the company develops a sophisticated energy consumption monitoring system that delivers real-time insights from electric, gas, and water meters. Its flagship wireless energy monitor provides utilities with critical grid intelligence, even in the absence of smart meters. By leveraging machine learning, Copper Labs generates actionable data that aids utilities in managing energy demand, stabilizing the grid, and reducing operational costs. The company's solutions empower consumers with valuable insights and alerts, particularly during peak energy periods, enabling them to save on costs and optimize energy usage.

Nth Cycle is a metal processing technology company focused on recovering critical minerals from e-waste and low-grade mine tailings. Utilizing its innovative electro-extraction technology, Nth Cycle offers a cleaner and customizable alternative to traditional methods such as hydrometallurgy and pyrometallurgy. This technology allows for the efficient reclamation of valuable metals, thereby reducing reliance on primary mining and establishing a secure secondary source of these essential materials within the United States. By enabling the manufacturing and recycling industries to access new metal sources, Nth Cycle plays a crucial role in supporting the transition to clean energy.

Bodhi's mission is to cultivate the bond between people and the energy that powers their lives. Our software platform empowers solar companies to deliver amazing customer experiences with ease. Bodhi automates communication and personalizes the homeowners’ experience, so that installers can focus on what they do best - executing projects, making more sales, and transforming communities around energy.

REsurety, Inc. is a risk transfer intermediary focused on enhancing the profitability of wind power projects through innovative risk management solutions. Founded in 2012 and based in Boston, Massachusetts, the company specializes in providing data, analytics, and related services that help clients evaluate, quantify, and optimize the value of wind volume hedging. By streamlining the process of risk transfer, REsurety supports wind project developers, owners, and financial underwriters in effectively managing the inherent risks associated with renewable energy investments. The company's technology integrates physical science, big data, and financial engineering, enabling clients to make informed decisions that maximize the resilience and sustainability of clean energy projects.

ClearFlame Engines, Inc. develops and manufactures innovative engines for heavy-duty applications, focusing on decarbonizing the industry by replacing traditional diesel engines. Established in 2016 and headquartered in Woodridge, Illinois, the company serves diverse markets, including marine, agriculture, transportation, power generation, rail, and construction. ClearFlame's patented technology allows heavy-duty engine manufacturers to produce engines that offer higher performance and lower operating costs, providing significant fuel cost savings for their customers. The company's mission is to address the environmental challenges posed by diesel fuel while enhancing engine efficiency and affordability.

Energetic Insurance, Inc. is an InsurTech company based in Boston, Massachusetts, founded in 2016. It specializes in providing solar insurance solutions that address credit and counterparty risks associated with commercial and industrial solar photovoltaic projects. The company offers a product called EneRate, which protects third-party solar developers and asset owners from repayment risks and revenue losses due to defaults on power purchase agreements (PPAs). Energetic Insurance employs a data-driven approach as a Managing General Underwriter, developing innovative risk management products that facilitate solar financing for unrated or below investment grade organizations. This enables solar project developers to undertake more projects and access capital by mitigating payment default risks, thereby enhancing project economics through lower interest rates and improved financial structuring.

Founded in 2008, this company specializes in manufacturing equipment for solar panel production. Its core technology, the floating silicon method, enhances wafer efficiency, reduces manufacturing costs and emissions.

BlueDot Photonics, Inc. is a company based in Kirkland, Washington, that specializes in the design, development, and production of solar panels and other photonic devices. Incorporated in 2019, BlueDot focuses on enhancing the performance and durability of solar energy devices. By utilizing innovative semiconductor materials, the company aims to increase the power output of solar panels, making clean energy more accessible and affordable for a broader range of customers.

60Hertz Inc. is a company that designs and develops mobile application software specifically for power plant operators, focusing on the management of energy assets and maintenance tasks. Established in 2016 and based in Anchorage, Alaska, the company's computerized maintenance management system (CMMS) supports operators of distributed energy resources, including microgrids and large-scale solar and battery energy storage systems. The software features custom preventative maintenance checklists, scheduling for corrective work, and integration with monitoring platforms, which allows for the creation of smart work orders and condition-based maintenance. Additionally, it enhances operational efficiency by validating task completion through photo uploads, streamlining work order placement, and providing visibility into operations. By enabling operators to make data-informed decisions, 60Hertz aims to reduce operating costs and enhance asset longevity while improving workforce retention and reducing training expenses.

Pearl Certification is a national firm that provides third-party certification of healthy, safe, comfortable, energy- and water-efficient homes. It works with real estate agents, contractors, and builders to help sellers illustrate the value of home investments and increase buyer confidence in major transactions. The company uses a proprietary algorithm that integrates safety, comfort, operating efficiency, resilience, and energy profile to make home performance visible and measurable, enabling homeowners, buyers, and real estate professionals to unlock value in properties and promote higher-performance building practices.

Boston Materials, Inc. is a manufacturer of advanced composite materials based in Bedford, Massachusetts, founded in 2016. The company specializes in producing 3D reinforced carbon fiber pre-pregs and offers a patented Z-axis Fiber technology that incorporates vertically aligned carbon fibers. This innovative approach enhances the thermal, electrical, and mechanical properties of materials, making them suitable for various high-growth industries, including semiconductors, aerospace, automotive, and renewable energy. Boston Materials' products are designed to improve performance, efficiency, and reliability while addressing challenges related to durability and weight reduction. The company employs a roll-to-roll manufacturing process with in-line quality control, achieving an annual production capacity of one million square meters.

Ndustrial provides analytical engines that enhance businesses' production control, improve energy efficiency, and minimize waste. Primarily serving mid-tier manufacturers, they integrate legacy data, streamline Industrial IoT deployments, and host predictive control algorithms to optimize operations globally.

Aqua Membranes develops membrane elements for reverse osmosis filtration, featuring three-dimensional printed spacer technology that prints spacers directly onto spiral-wound membranes. This approach replaces traditional feed spacer mesh, improving flow, enlarging effective membrane surface area, and reducing fouling and energy use. The company’s elements are used in home and commercial RO systems, seawater desalination, food and beverage processing, and industrial processes, with applications across filtration and concentration steps. The objective is to deliver higher efficiency and a more sustainable water future by enabling stronger performance in membrane filtration.

Founded in Chicago, Illinois in 2018, Volexion specializes in manufacturing lithium ion batteries. Its proprietary graphene coating technology enhances conventional lithium-ion batteries, offering clients improved battery life, power performance, and a wider temperature and voltage range.

Nth Cycle is a metal processing technology company focused on recovering critical minerals from e-waste and low-grade mine tailings. Utilizing its innovative electro-extraction technology, Nth Cycle offers a cleaner and customizable alternative to traditional methods such as hydrometallurgy and pyrometallurgy. This technology allows for the efficient reclamation of valuable metals, thereby reducing reliance on primary mining and establishing a secure secondary source of these essential materials within the United States. By enabling the manufacturing and recycling industries to access new metal sources, Nth Cycle plays a crucial role in supporting the transition to clean energy.

LineVision, Inc. is a company that specializes in developing advanced transmission line monitoring systems for electric utilities. Founded in 2018 and headquartered in Somerville, Massachusetts, LineVision offers a patented non-contact sensor technology that enables real-time monitoring and analytics of overhead power lines. This system provides crucial insights into the health and performance of transmission lines, allowing utilities to enhance capacity, reliability, and safety without the need for scheduled outages or specialized installation equipment. Key features of LineVision's platform include asset management, dynamic line ratings, and a secure web interface for data and analytics. By leveraging these capabilities, LineVision supports utility partners in their efforts to improve grid resilience and facilitate the energy transition.

ClearTrace is a software company that provides automated energy and carbon accounting via a blockchain-enabled cloud platform. Its SaaS solution creates verifiable digital records of energy usage and tracks third-party energy supply, financial power purchase agreements, demand response, and behind-the-meter energy assets, supporting reporting, auditing, and compliance across the energy supply chain. The company serves renewable energy suppliers, corporations, and commercial real estate owners, helping to establish a single source of truth for decarbonization claims and reduce greenwashing. Founded in 2017 and based in Austin, Texas, ClearTrace develops digital infrastructure and immutable data representations to measure and verify real-world energy emissions, enabling clients to pursue sustainability and financial goals.

Boston Materials, Inc. is a manufacturer of advanced composite materials based in Bedford, Massachusetts, founded in 2016. The company specializes in producing 3D reinforced carbon fiber pre-pregs and offers a patented Z-axis Fiber technology that incorporates vertically aligned carbon fibers. This innovative approach enhances the thermal, electrical, and mechanical properties of materials, making them suitable for various high-growth industries, including semiconductors, aerospace, automotive, and renewable energy. Boston Materials' products are designed to improve performance, efficiency, and reliability while addressing challenges related to durability and weight reduction. The company employs a roll-to-roll manufacturing process with in-line quality control, achieving an annual production capacity of one million square meters.

Founded in 2008, this company specializes in manufacturing equipment for solar panel production. Its core technology, the floating silicon method, enhances wafer efficiency, reduces manufacturing costs and emissions.

SunDensity Inc. is a Boston-based company that specializes in the research, design, and development of innovative Photonic Smart Coating (PSC™) technology. Established in 2016, the company focuses on enhancing efficiencies in photonics through the up and down conversion of light wavelengths, addressing various inefficiencies in the field. SunDensity's PSC™ technology is designed to lower electricity costs generated by solar photovoltaic applications, optimize the thermal and optical properties of architectural glass, and improve the quantum efficiency of optoelectronic instruments. The company also maintains an office in Rochester, New York, where it continues to advance its groundbreaking technologies.

Aqua Membranes develops membrane elements for reverse osmosis filtration, featuring three-dimensional printed spacer technology that prints spacers directly onto spiral-wound membranes. This approach replaces traditional feed spacer mesh, improving flow, enlarging effective membrane surface area, and reducing fouling and energy use. The company’s elements are used in home and commercial RO systems, seawater desalination, food and beverage processing, and industrial processes, with applications across filtration and concentration steps. The objective is to deliver higher efficiency and a more sustainable water future by enabling stronger performance in membrane filtration.

Kuva Systems develops an industrial IoT solution that continuously monitors and quantifies methane and VOC emissions with an infrared imaging system. The technology automatically detects leaks, measures emission levels, and provides operators with annotated video clips, while visualizing events in day or day-night modes and transmitting quantified visuals to the cloud in real time, enabling oil and gas operators to monitor assets more cost-effectively. Founded in 2015 and headquartered in Cambridge, Massachusetts, Kuva Systems focuses on enabling safer, more efficient emissions surveillance for industrial facilities.

SparkMeter develops smart electricity metering systems and grid management software for underserved markets. Its products include residential and commercial meters, along with software solutions that enhance grid efficiency, enable prepaid billing, and facilitate remote monitoring. Founded in 2012, SparkMeter operates from Washington D.C. and Nairobi, Kenya.

Boston Materials, Inc. is a manufacturer of advanced composite materials based in Bedford, Massachusetts, founded in 2016. The company specializes in producing 3D reinforced carbon fiber pre-pregs and offers a patented Z-axis Fiber technology that incorporates vertically aligned carbon fibers. This innovative approach enhances the thermal, electrical, and mechanical properties of materials, making them suitable for various high-growth industries, including semiconductors, aerospace, automotive, and renewable energy. Boston Materials' products are designed to improve performance, efficiency, and reliability while addressing challenges related to durability and weight reduction. The company employs a roll-to-roll manufacturing process with in-line quality control, achieving an annual production capacity of one million square meters.

ClearFlame Engines, Inc. develops and manufactures innovative engines for heavy-duty applications, focusing on decarbonizing the industry by replacing traditional diesel engines. Established in 2016 and headquartered in Woodridge, Illinois, the company serves diverse markets, including marine, agriculture, transportation, power generation, rail, and construction. ClearFlame's patented technology allows heavy-duty engine manufacturers to produce engines that offer higher performance and lower operating costs, providing significant fuel cost savings for their customers. The company's mission is to address the environmental challenges posed by diesel fuel while enhancing engine efficiency and affordability.

Founded in 2008, this company specializes in manufacturing equipment for solar panel production. Its core technology, the floating silicon method, enhances wafer efficiency, reduces manufacturing costs and emissions.

ConnectDER is a solar technology company based in Philadelphia, Pennsylvania, founded in 2011. It specializes in designing and manufacturing meter collars that facilitate the connection of distributed energy resources (DERs) such as solar photovoltaic systems, battery storage, and electric vehicle charging to residential homes and the grid. By transforming the electricity meter socket into an interconnection point, ConnectDER enhances the integration and management of DERs. The company also offers ConnectDER Cloud, a system that allows fleet operators to access metering data, manage operational parameters, and control firmware remotely. This technology improves the efficiency and resilience of home energy systems while benefiting users, the grid, and the environment.

Rebound Technologies manufactures innovative thermal energy storage systems for commercial freezer environments and off-grid cooling. Its flagship products include IcePoint, a low-temperature refrigeration solution for supermarkets, and SunChill, an off-grid refrigeration system designed to improve agricultural productivity by removing field heat from crops post-harvest. The company's solutions are used by retail stores and farmers in the United States.

Pearl Certification is a national firm that provides third-party certification of healthy, safe, comfortable, energy- and water-efficient homes. It works with real estate agents, contractors, and builders to help sellers illustrate the value of home investments and increase buyer confidence in major transactions. The company uses a proprietary algorithm that integrates safety, comfort, operating efficiency, resilience, and energy profile to make home performance visible and measurable, enabling homeowners, buyers, and real estate professionals to unlock value in properties and promote higher-performance building practices.

LineVision, Inc. is a company that specializes in developing advanced transmission line monitoring systems for electric utilities. Founded in 2018 and headquartered in Somerville, Massachusetts, LineVision offers a patented non-contact sensor technology that enables real-time monitoring and analytics of overhead power lines. This system provides crucial insights into the health and performance of transmission lines, allowing utilities to enhance capacity, reliability, and safety without the need for scheduled outages or specialized installation equipment. Key features of LineVision's platform include asset management, dynamic line ratings, and a secure web interface for data and analytics. By leveraging these capabilities, LineVision supports utility partners in their efforts to improve grid resilience and facilitate the energy transition.

Boston Materials, Inc. is a manufacturer of advanced composite materials based in Bedford, Massachusetts, founded in 2016. The company specializes in producing 3D reinforced carbon fiber pre-pregs and offers a patented Z-axis Fiber technology that incorporates vertically aligned carbon fibers. This innovative approach enhances the thermal, electrical, and mechanical properties of materials, making them suitable for various high-growth industries, including semiconductors, aerospace, automotive, and renewable energy. Boston Materials' products are designed to improve performance, efficiency, and reliability while addressing challenges related to durability and weight reduction. The company employs a roll-to-roll manufacturing process with in-line quality control, achieving an annual production capacity of one million square meters.

ConnectDER is a solar technology company based in Philadelphia, Pennsylvania, founded in 2011. It specializes in designing and manufacturing meter collars that facilitate the connection of distributed energy resources (DERs) such as solar photovoltaic systems, battery storage, and electric vehicle charging to residential homes and the grid. By transforming the electricity meter socket into an interconnection point, ConnectDER enhances the integration and management of DERs. The company also offers ConnectDER Cloud, a system that allows fleet operators to access metering data, manage operational parameters, and control firmware remotely. This technology improves the efficiency and resilience of home energy systems while benefiting users, the grid, and the environment.

Rebound Technologies manufactures innovative thermal energy storage systems for commercial freezer environments and off-grid cooling. Its flagship products include IcePoint, a low-temperature refrigeration solution for supermarkets, and SunChill, an off-grid refrigeration system designed to improve agricultural productivity by removing field heat from crops post-harvest. The company's solutions are used by retail stores and farmers in the United States.

Pearl Certification is a national firm that provides third-party certification of healthy, safe, comfortable, energy- and water-efficient homes. It works with real estate agents, contractors, and builders to help sellers illustrate the value of home investments and increase buyer confidence in major transactions. The company uses a proprietary algorithm that integrates safety, comfort, operating efficiency, resilience, and energy profile to make home performance visible and measurable, enabling homeowners, buyers, and real estate professionals to unlock value in properties and promote higher-performance building practices.

Founded in 2008, this company specializes in manufacturing equipment for solar panel production. Its core technology, the floating silicon method, enhances wafer efficiency, reduces manufacturing costs and emissions.

SparkMeter develops smart electricity metering systems and grid management software for underserved markets. Its products include residential and commercial meters, along with software solutions that enhance grid efficiency, enable prepaid billing, and facilitate remote monitoring. Founded in 2012, SparkMeter operates from Washington D.C. and Nairobi, Kenya.

Energetic Insurance, Inc. is an InsurTech company based in Boston, Massachusetts, founded in 2016. It specializes in providing solar insurance solutions that address credit and counterparty risks associated with commercial and industrial solar photovoltaic projects. The company offers a product called EneRate, which protects third-party solar developers and asset owners from repayment risks and revenue losses due to defaults on power purchase agreements (PPAs). Energetic Insurance employs a data-driven approach as a Managing General Underwriter, developing innovative risk management products that facilitate solar financing for unrated or below investment grade organizations. This enables solar project developers to undertake more projects and access capital by mitigating payment default risks, thereby enhancing project economics through lower interest rates and improved financial structuring.

LineVision, Inc. is a company that specializes in developing advanced transmission line monitoring systems for electric utilities. Founded in 2018 and headquartered in Somerville, Massachusetts, LineVision offers a patented non-contact sensor technology that enables real-time monitoring and analytics of overhead power lines. This system provides crucial insights into the health and performance of transmission lines, allowing utilities to enhance capacity, reliability, and safety without the need for scheduled outages or specialized installation equipment. Key features of LineVision's platform include asset management, dynamic line ratings, and a secure web interface for data and analytics. By leveraging these capabilities, LineVision supports utility partners in their efforts to improve grid resilience and facilitate the energy transition.

CleanFiber, LLC is a manufacturer of cellulose insulation materials designed for use in attics, walls, and floors of both residential and commercial buildings. Founded in 2013 and headquartered in Blasdell, New York, with an additional office in Buffalo, the company specializes in producing high-performance, carbon-negative insulation from recycled corrugated cardboard. This innovative approach not only promotes sustainability but also enables construction companies to build fire-resistant structures while maintaining cost competitiveness. CleanFiber has transitioned from its former name, UltraCell Insulation, LLC, in September 2018, and is currently focused on rapidly scaling up production to meet growing demand in the insulation market.

Boston Materials, Inc. is a manufacturer of advanced composite materials based in Bedford, Massachusetts, founded in 2016. The company specializes in producing 3D reinforced carbon fiber pre-pregs and offers a patented Z-axis Fiber technology that incorporates vertically aligned carbon fibers. This innovative approach enhances the thermal, electrical, and mechanical properties of materials, making them suitable for various high-growth industries, including semiconductors, aerospace, automotive, and renewable energy. Boston Materials' products are designed to improve performance, efficiency, and reliability while addressing challenges related to durability and weight reduction. The company employs a roll-to-roll manufacturing process with in-line quality control, achieving an annual production capacity of one million square meters.

Founded in 2008, this company specializes in manufacturing equipment for solar panel production. Its core technology, the floating silicon method, enhances wafer efficiency, reduces manufacturing costs and emissions.

SparkMeter develops smart electricity metering systems and grid management software for underserved markets. Its products include residential and commercial meters, along with software solutions that enhance grid efficiency, enable prepaid billing, and facilitate remote monitoring. Founded in 2012, SparkMeter operates from Washington D.C. and Nairobi, Kenya.

EnergySage, LLC is an online marketplace based in Boston, Massachusetts, that specializes in solar and clean energy technologies for homeowners, businesses, and non-profits. Founded in 2009, the company provides a platform that enables consumers to explore a variety of energy solutions, including rooftop solar, battery storage, community solar, heat pumps, electric vehicle charging, and more. EnergySage offers educational content, analytical tools, and standardized shopping experiences, allowing users to request and compare competitive quotes from pre-screened installers. This facilitates informed decision-making and streamlines the process of selecting and installing clean energy systems, making it a valuable resource for those seeking sustainable energy alternatives.

CleanFiber, LLC is a manufacturer of cellulose insulation materials designed for use in attics, walls, and floors of both residential and commercial buildings. Founded in 2013 and headquartered in Blasdell, New York, with an additional office in Buffalo, the company specializes in producing high-performance, carbon-negative insulation from recycled corrugated cardboard. This innovative approach not only promotes sustainability but also enables construction companies to build fire-resistant structures while maintaining cost competitiveness. CleanFiber has transitioned from its former name, UltraCell Insulation, LLC, in September 2018, and is currently focused on rapidly scaling up production to meet growing demand in the insulation market.

Zagster Inc. is a provider of bike-sharing programs, specializing in the design, construction, and operation of both private and public-private bike-sharing systems in North America. Founded in 2007 and headquartered in Cambridge, Massachusetts, the company partners with property managers, universities, corporate campuses, hotels, and small cities to offer bike-sharing solutions tailored to the needs of tenants, employees, guests, and residents. Zagster's comprehensive offerings include a mobile application that facilitates the unlocking, riding, and returning of bikes, as well as a micro-mobility operations platform for e-mobility providers. Additionally, the company provides maintenance and rider support services, ensuring a seamless experience for users.

Energetic Insurance, Inc. is an InsurTech company based in Boston, Massachusetts, founded in 2016. It specializes in providing solar insurance solutions that address credit and counterparty risks associated with commercial and industrial solar photovoltaic projects. The company offers a product called EneRate, which protects third-party solar developers and asset owners from repayment risks and revenue losses due to defaults on power purchase agreements (PPAs). Energetic Insurance employs a data-driven approach as a Managing General Underwriter, developing innovative risk management products that facilitate solar financing for unrated or below investment grade organizations. This enables solar project developers to undertake more projects and access capital by mitigating payment default risks, thereby enhancing project economics through lower interest rates and improved financial structuring.

Founded in 2008, this company specializes in manufacturing equipment for solar panel production. Its core technology, the floating silicon method, enhances wafer efficiency, reduces manufacturing costs and emissions.

CIMCON Lighting, established in 2012, specializes in developing web-based wireless outdoor lighting management systems. Headquartered in Burlington, Massachusetts, the company serves utilities, municipalities, ESCOs, and commercial customers by providing solutions for traditional, LED, and solar-based street lights. Their offerings include the LightingGale software for automated streetlight management, wireless controllers like iSLC-3100 with dimming capabilities, and the NearSky platform for smart city applications. CIMCON's systems enable clients to remotely monitor and control outdoor lighting fixtures, reducing energy consumption and maintenance costs while transforming existing infrastructure into a foundation for smart city solutions.

Autonomous Marine Systems Inc. is a marine data services company based in Somerville, Massachusetts, established in 2009. The company specializes in collecting and transmitting hydrographic data utilizing low-cost, self-powered ocean surface drones that operate autonomously. These wind and solar-powered robotic sailboats are deployed in fleets to form an intelligent sensor network, enabling customized surveys for various sectors including defense, energy, shipping, fishing, and research. By providing long-duration mission capabilities over extensive geographic areas, Autonomous Marine Systems allows clients to gather crucial marine data while minimizing risks to human life and reducing the costs associated with traditional vessels in challenging marine environments.

Pika Energy, Inc. is a manufacturer based in Westbrook, Maine, specializing in the development and production of renewable energy technologies for the residential market. Founded in 2010 by engineers from MIT, the company offers a range of products, including small wind turbines, high-efficiency bidirectional inverters, charge controllers, and solar optimizers. Its patented REbus DC Nanogrid technology facilitates efficient power transmission and integration of various energy sources, allowing homes to collect, store, and utilize clean energy. Pika Energy's products are designed and manufactured in the United States, using domestic materials, and are marketed through a network of trained dealers and installers across North America. The company operates as a subsidiary of Generac Holdings Inc.

VoltServer develops innovative power distribution products using its patented Digital Electricity technology. It manufactures solutions that deliver touch-safe electricity via off-the-shelf data cables, offering significant cost savings, increased speed, distance, efficiency, intelligence, and flexibility compared to traditional electrical installations. Established in 2011, VoltServer serves diverse industries such as telecommunications, data centers, renewable energy, electric vehicles, indoor agriculture, and commercial buildings.

PRIME Coalition is a not-for-profit venture capital firm established in 2014 and based in Cambridge, Massachusetts. As a 501(c)(3) public charity, it focuses on making minority early-stage investments in companies, particularly in the cleantech, business services, and energy services sectors within the United States. The organization aims to support innovative ventures that are positioned to address pressing environmental challenges and promote sustainable practices. Through its investments, PRIME Coalition seeks to foster the development of technologies and services that can contribute to a more sustainable future.

Zagster Inc. is a provider of bike-sharing programs, specializing in the design, construction, and operation of both private and public-private bike-sharing systems in North America. Founded in 2007 and headquartered in Cambridge, Massachusetts, the company partners with property managers, universities, corporate campuses, hotels, and small cities to offer bike-sharing solutions tailored to the needs of tenants, employees, guests, and residents. Zagster's comprehensive offerings include a mobile application that facilitates the unlocking, riding, and returning of bikes, as well as a micro-mobility operations platform for e-mobility providers. Additionally, the company provides maintenance and rider support services, ensuring a seamless experience for users.

Solantro Semiconductor Corp. is a Canadian semiconductor company established in 2009, specializing in the design and manufacture of integrated circuits for grid applications, particularly within the renewable energy sector. The company develops a range of products, including analog power managers, DC-DC power optimizers, and micro-inverter controllers, which are essential for converting solar energy into usable power. Their chipsets enhance solar panels, enabling them to function as integrated power generators. Solantro's technology supports various applications, including intelligent photovoltaic module safety disconnects and battery chargers, while also offering software development tools for system integration. The company serves clients in power electronics, smart grid, and renewable energy industries, providing semiconductor-based architectures that facilitate the measurement, processing, and management of power from distributed energy resources.

Bevi develops bottle-less water dispensers for offices and commercial spaces that dispense beverages made from filtered tap water with natural flavors, including real fruit essences. The systems allow users to customize drinks and view nutrition information, while the company emphasizes tracking environmental impact and reducing waste from bottled beverages. The technology is designed to run on the municipal water supply, aiming to transform beverage delivery by offering eco-friendly, healthy hydration options on site.

Founded in 2013, Quidnet Energy develops grid-scale energy storage systems using a unique hydroelectric technology. The company stores excess renewable energy by pumping water under pressure into underground geological reservoirs and releases it to drive hydroelectric turbines when needed. This process enables seamless integration with existing electricity-generating facilities at a lower cost than lithium-ion batteries.

WeSpire Inc. is an engagement platform headquartered in Boston, Massachusetts, that specializes in sustainability and responsibility programs for global corporations. Founded in 2010 and previously known as Practically Green, the company employs persuasive technology to foster employee engagement in a variety of initiatives, including energy efficiency, water conservation, waste management, transportation, food sustainability, volunteerism, and corporate citizenship. WeSpire's platform utilizes dynamic content, social levers, and gamification, supported by applied behavioral science, to enhance participation in these programs. By providing a configurable library of action-based programs, WeSpire enables organizations to drive measurable positive impacts and improve environmental, social, and cultural outcomes. The company collaborates with prominent brands such as Unilever, MGM Resorts International, and Sony to promote engagement in corporate sustainability and social responsibility efforts.

Skystream Markets Inc. operates as an institutional transaction platform for the environmental markets in the United States and internationally. Its platform offers automation in the trade cycle, including execution, trade capture, processing, and reporting. The company also acts as a neutral intermediary for market participants in the environmental markets; provides client support, which includes structuring customized physical and financial hedging strategies in the spot, option, and forward markets; and builds auctions and electronic markets for the primary and secondary markets in renewable energy certificate (REC) markets. In addition, Skystream Markets offers transaction services in REC markets. Further, the company operates a trading platform that connects pools of capital with renewable power projects through an electronic process. It serves power producers and major trading counterparties. Skystream Markets was founded in 2009 and is based in New York, New York with a sales office in Boston, Massachusetts.

REsurety, Inc. is a risk transfer intermediary focused on enhancing the profitability of wind power projects through innovative risk management solutions. Founded in 2012 and based in Boston, Massachusetts, the company specializes in providing data, analytics, and related services that help clients evaluate, quantify, and optimize the value of wind volume hedging. By streamlining the process of risk transfer, REsurety supports wind project developers, owners, and financial underwriters in effectively managing the inherent risks associated with renewable energy investments. The company's technology integrates physical science, big data, and financial engineering, enabling clients to make informed decisions that maximize the resilience and sustainability of clean energy projects.

REsurety, Inc. is a risk transfer intermediary focused on enhancing the profitability of wind power projects through innovative risk management solutions. Founded in 2012 and based in Boston, Massachusetts, the company specializes in providing data, analytics, and related services that help clients evaluate, quantify, and optimize the value of wind volume hedging. By streamlining the process of risk transfer, REsurety supports wind project developers, owners, and financial underwriters in effectively managing the inherent risks associated with renewable energy investments. The company's technology integrates physical science, big data, and financial engineering, enabling clients to make informed decisions that maximize the resilience and sustainability of clean energy projects.

VoltServer develops innovative power distribution products using its patented Digital Electricity technology. It manufactures solutions that deliver touch-safe electricity via off-the-shelf data cables, offering significant cost savings, increased speed, distance, efficiency, intelligence, and flexibility compared to traditional electrical installations. Established in 2011, VoltServer serves diverse industries such as telecommunications, data centers, renewable energy, electric vehicles, indoor agriculture, and commercial buildings.

Skystream Markets Inc. operates as an institutional transaction platform for the environmental markets in the United States and internationally. Its platform offers automation in the trade cycle, including execution, trade capture, processing, and reporting. The company also acts as a neutral intermediary for market participants in the environmental markets; provides client support, which includes structuring customized physical and financial hedging strategies in the spot, option, and forward markets; and builds auctions and electronic markets for the primary and secondary markets in renewable energy certificate (REC) markets. In addition, Skystream Markets offers transaction services in REC markets. Further, the company operates a trading platform that connects pools of capital with renewable power projects through an electronic process. It serves power producers and major trading counterparties. Skystream Markets was founded in 2009 and is based in New York, New York with a sales office in Boston, Massachusetts.

FINsix Corporation, founded in 2010 as a spinout from the MIT LEES Laboratory, specializes in developing advanced power electronic systems. The company is recognized for its innovative high-frequency power conversion technology, which has positioned it as a leader in VHF power conversion. FINsix's flagship product, the DART adapter, is a highly miniaturized power solution that is four times smaller and six times lighter than traditional laptop adapters, making it the smallest in the world. The DART features a built-in USB port, allowing it to simultaneously charge a laptop and a mobile device while occupying only one electrical socket. With twenty issued and pending patents, FINsix is committed to transforming power delivery for consumer electronics, enhancing both performance and efficiency. The company is headquartered in Menlo Park, California, and has established a strategic partnership with Toyota Industries Corporation.

7AC Technologies Inc. is a company based in Beverly, Massachusetts, that specializes in innovative HVAC solutions using a unique membrane-isolated plastic plate technology. Founded in 2009 and formerly known as 7Solar Technologies, the company focuses on developing ultra-efficient liquid desiccant systems designed for commercial and industrial buildings. These systems offer significant energy savings, achieving over a 50% reduction in energy costs compared to traditional HVAC units. As of November 2020, 7AC Technologies operates as a subsidiary of Emerson Electric Co.

VCharge, Inc. is a technology company that specializes in intelligent infrastructure for managing transactive electric loads, primarily across Maine, Massachusetts, Pennsylvania, and expanding into international markets such as Germany, Ireland, and the United Kingdom. Founded in 2009 and headquartered in Providence, Rhode Island, VCharge develops the VNet power management platform, which coordinates the activities of distributed transactive load assets. The company also provides SmartBricks and SmartHydro, controllers for electric thermal storage heating systems, and VConsole, a web-based interface for users and utilities. VCharge focuses on retrofitting existing electric thermal storage systems, which are more common in Europe, to enhance energy efficiency and reduce costs for homeowners. Through energy arbitrage and grid services, VCharge helps users save significantly on heating costs while contributing to the stability and efficiency of the electric grid, particularly as the energy landscape shifts towards greater reliance on renewable sources.