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.

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.

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.

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.

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 develops emission-free ammonia generation technology. Its innovative electrochemical process, aided by a novel catalyst, produces ammonia with zero carbon emissions.

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.

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

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.

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.

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.

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.

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 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.

MyEnergy is a company dedicated to helping households across the United States reduce energy consumption and save on utility bills. It offers a free platform where users can access personalized energy-saving tips and incentives, compare their energy usage with others, and set goals to track their progress. The platform includes algorithms that collect and analyze utility energy data to provide tailored recommendations. Additionally, users can earn rewards for successfully lowering their energy bills. MyEnergy is compatible with hundreds of utilities nationwide and aims to serve over 90% of the U.S. population.

Next Step Living provides home energy evaluations and solutions for individuals and organizations. It offers energy assessment and diagnostics, air sealing and insulation, and multi-family retrofit services. The company also provides customized solutions, such as HVAC repair and replacement, window replacement and installation, solar or geothermal systems installation, building automation, interior and exterior lighting design, and custom retrofit services. Its sustainability solutions include water efficiency and purification, landscape design and management, and indoor air quality services. The company provides assessment and diagnostic processes to heating and cooling, domestic hot water, and electricity and lighting needs. Next Step Living partners with more than 400 municipalities, civic organizations, contractors, and corporations to deliver energy-efficient and environmental-friendly solutions to its customers. Those solutions include home energy assessments, weatherization work, energy-efficient windows, efficient heating, and cooling solutions, and access to solar solutions. Next Step Living was founded in 2008 by Geoff Chapin and is based in Boston, Massachusetts.

PurposeEnergy, Inc. specializes in providing consultative services and wastewater management solutions primarily for the food and beverage industry. Established in 2007 and headquartered in Woburn, Massachusetts, the company conducts comprehensive audits of clients' wastewater strategies and offers tailored recommendations for organic waste remediation and technology enhancements. PurposeEnergy develops advanced wastewater systems that convert organic residuals into renewable energy and clean water. This innovative approach helps clients improve production efficiency, reduce costs associated with trucking and off-site waste disposal, lower energy and water expenses, and minimize their carbon footprint.

socially responsible investing

Exterra is a technology company focused on developing solutions for durable CO2 storage using mineral waste. Its proprietary technologies enable the production of low-carbon oxides and critical minerals from ores and mine tailings, integrating into mineral processing operations to reduce costs and facilitate decarbonization.