Lowercarbon Capital is a venture capital firm established in 2018 and headquartered in Jackson, Wyoming. The company focuses on funding research and investing in innovative technologies aimed at reducing carbon dioxide levels in the atmosphere. Lowercarbon Capital seeks to support entrepreneurs and scientists who are developing solutions to lower emissions, remove carbon, and actively cool the planet. The firm targets investments across various sectors, including commercial services, transportation, energy equipment, utilities, and computer hardware and software, with a specific emphasis on companies that contribute to carbon reduction and environmental sustainability.
Electra is dedicated to reducing carbon dioxide emissions in the iron and steel production industry through innovative electrochemical and hydrometallurgical processes. The company has developed alternative steelmaking technology that aims to electrify and decarbonize the production process, allowing for the creation of low-carbon clean iron from various ores. By utilizing renewable energy sources, Electra enables steel producers to lower energy intensity and costs, contributing to a more sustainable approach to steelmaking.
Crux
Series B in 2025
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.
Renaissance Fusion
Series A in 2025
Renaissance Fusion is a company focused on developing high-temperature superconductors that facilitate advancements in fusion energy and medical imaging. By creating superconductors for stellarator plasma devices, Renaissance Fusion aims to make fusion electricity affordable and accessible, thereby integrating it into the energy grid. Additionally, their technology enhances the effectiveness of MRI machines, making them a routine and commonplace form of medical examination. Through these innovations, the company seeks to simplify the process of harnessing fusion energy and improve medical diagnostics.
Epoch Biodesign
Series A in 2025
Epoch Biodesign focuses on creating natural solutions to address climate challenges through the development of innovative enzymes. By integrating insights from nature with expertise in computational and biological sciences, the company enables the biorecycling of plastic waste into everyday chemicals. Their enzymatic process is tunable, allowing for efficient conversion of unrecyclable plastics into low-carbon alternatives. Epoch Biodesign's approach not only facilitates the recycling of plastic waste but also enhances the discovery and development of products using complex proteins, positioning the company as a significant player in advancing sustainable practices in waste management.
Gridware
Series A in 2025
Gridware specializes in advanced grid monitoring solutions aimed at enhancing the safety and reliability of electrical infrastructure. The company develops a sophisticated sensing system equipped with high-precision sensor arrays and artificial intelligence to continuously analyze the electrical and mechanical behavior of grid assets. This technology detects and predicts faults by monitoring the ambient environment around power poles, allowing utilities to identify potential issues before they escalate into serious problems. By facilitating timely repairs and enabling rapid responses to environmental anomalies, Gridware's solutions help mitigate risks such as wildfires and power outages. Headquartered in the Bay Area of California, Gridware is a privately held company supported by prominent climate-tech investors.
Flair
Venture Round in 2024
Flair makes smart vents and wireless thermostats and advanced software for residential heating and cooling. The company builds smart hardware and software for HVAC controls focused on efficiency, comfort, electrification, and smart grid integration. The company's products are sold through multiple channels including direct to consumer, HVAC distribution, and utilities.
SolarSquare
Series B in 2024
SolarSquare Energy is a residential solar company specializing in the design, installation, and maintenance of rooftop solar panels for homes and small commercial establishments. The company aims to promote the widespread adoption of solar energy by converting sunlight into usable electricity, thereby helping clients achieve their sustainability goals. Trusted by over 4,000 homeowners and various Fortune 500 companies, SolarSquare focuses on delivering substantial savings on energy costs, with customers typically saving a minimum of Rs. 2,000 on their monthly electricity bills.
Heirloom
Series B in 2024
Heirloom specializes in direct air capture technology aimed at enhancing the natural absorption of carbon dioxide from the atmosphere. The company's innovative system accelerates the ability of limestone to capture CO2, allowing for its permanent storage underground. By operating on renewable energy, Heirloom's technology promotes carbon capture and utilization at a large scale, with the goal of removing significant amounts of atmospheric CO2. This approach not only minimizes secondary impacts but also supports clients in restoring the atmosphere through natural processes.
Acceleron Fusion
Series A in 2024
Acceleron Fusion specializes in clean energy solutions, harnessing fusion technology to power cities, charge electric vehicles, and fuel rockets. Its innovative platform employs muon-catalyzed fusion to generate abundant, clean energy, aiming to address the engineering challenges of integrating fusion power into the grid and serving various industries.
Ulysses Ecosystem Engineering
Pre Seed Round in 2024
Ulysses Ecosystem Engineering focuses on rewilding the ocean and restoring marine ecosystems through innovative seagrass restoration services. The company employs specially designed autonomous robots to efficiently scale up seagrass restoration efforts worldwide, significantly enhancing biodiversity and facilitating the removal of carbon from the atmosphere. By offering advanced solutions, Ulysses aims to support governments, project developers, and non-profit organizations in achieving their restoration goals more effectively and economically compared to traditional diver-led methods. This approach not only addresses the urgent need to combat climate change but also contributes to the preservation of critical ocean ecosystems.
Pacific Fusion
Series A in 2024
Pacific Fusion, a privately-held company with 11-50 employees, specializes in developing renewable energy power generation, focusing on affordable fusion power. It aims to create sustainable energy solutions for the clean energy sector by leveraging established scientific principles and prioritizing scalability. The company's innovative approach combines practical design with optimization for a wide range of target designs, enabling it to magnetically squeeze and heat small containers of deuterium-tritium fuel, suitable for low-cost power and heat at different scales.
Storio
Seed Round in 2024
Storio Energy, based in France, specializes in developing and operating energy storage solutions, primarily batteries, for professional clients. The company caters to three key use cases: standalone batteries for businesses exposed to volatile energy prices, storage combined with solar panels for enhanced self-consumption, and hybrid solar plus storage projects for independent power producers (IPPs). Storio's unique approach involves real-time operation of these batteries through its proprietary software platform, utilizing their flexibility to provide balancing and ancillary services to the electrical grid. The company offers a comprehensive, turnkey solution, supporting clients from initial feasibility studies through to installation and long-term operation, spanning over 15 years. Additionally, Storio provides financing options, allowing clients to partially or fully fund their storage projects.
Airloom Energy
Seed Round in 2024
Airloom Energy focuses on harnessing wind energy through innovative airframe technology that operates on a lightweight track. By employing a unique geometry, the company generates energy comparable to traditional wind turbines but at a significantly reduced cost. Its system consists of multiple small airframes that move along a slender oval track, utilizing downwind forces supported by a bridling system. This flexible configuration allows for adaptation to various landscapes and energy needs, enabling clients to efficiently and economically capture wind energy. Airloom Energy is committed to providing low-cost utility-scale wind energy solutions.
Vaulted Deep
Series A in 2024
Vaulted Deep specializes in permanent carbon removal through innovative technology solutions that enhance both environmental and community health. As a spin-off of Advantek Waste Management Services, the company focuses on biomass carbon removal and the geologic sequestration of organic wastes. Utilizing patented geologic slurry injection technology, Vaulted Deep aims to provide clients with cost-effective, large-scale carbon dioxide removal options, addressing the urgent need for sustainable waste management and climate action.
Zap Energy
Series D in 2024
Zap Energy, Inc., founded in 2017 and headquartered in Seattle, Washington, specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. The company’s innovative technology utilizes electric currents to create magnetic fields that confine and compress plasma, enabling efficient energy production through nuclear fusion. This approach offers a low-carbon, cost-effective, and flexible power source while requiring less capital investment compared to traditional fusion methods. By focusing on compact and scalable fusion technology, Zap Energy aims to advance sustainable energy solutions and improve the economics of fusion energy.
Carbyon
Series A in 2024
Carbyon is a Netherlands-based company specializing in direct air capture (DAC) technologies that filter carbon dioxide (CO2) from ambient air. Its innovative "fast-swing" technology purifies CO2, making it suitable for various applications, including the production of kerosene for aircraft. By enabling the fossil fuel industry to repurpose existing storage and transportation infrastructure for renewable hydrocarbons, Carbyon supports the transition from fossil hydrocarbons to alternative energy carriers, such as batteries and hydrogen. This approach not only aids in reducing greenhouse gas emissions but also facilitates significant transformations in energy systems and transportation networks.
Arca Climate Technologies
Seed Round in 2024
Arca is a leading carbon dioxide removal (CDR) company. Arca accelerates natural process of carbon mineralization, by reacting atmospheric carbon dioxide with ultramafic mine tailings rich in magnesium silicate minerals, such as serpentine and brucite. By leveraging partnerships with mining companies, Arca transforms mine waste into a carbon sink, permanently storing CO₂ as stable carbonate minerals. The company is at the forefront of scaling carbon dioxide removal (CDR) solutions by integrating geochemical expertise, real-time monitoring, and verification methodologies. Arca collaborates with major buyers of carbon removal credits, such as Shopify, Stripe, Watershed and MaRS, and has established formal methodologies for recognizing and quantifying mineralization in voluntary and compliance carbon markets.
Aepnus
Seed Round in 2024
Developer of an electrolysis equipment designed to refine minerals and desalinate water. The company's technology manufactures low-cost electrolysis equipment which is used to electrify and decarbonize the production of commodity chemicals needed to transition to a carbon-free industry, enabling companies to manufacture electrified chemicals for a carbon-free future.
Xcimer
Series A in 2024
Xcimer Energy is a California-based company focused on developing laser-driven fusion technology to generate affordable, carbon-free energy. Founded in 2021 and headquartered in Redwood City, it aims to transform the energy sector by integrating low-cost excimer laser technology with the HYLIFE reaction chamber concept. This innovative approach is designed to create a scalable Inertial Fusion Energy system that addresses longstanding challenges in achieving viable fusion power. By utilizing the only experimentally proven controlled fusion reaction, Xcimer Energy seeks to enable efficient electrical power generation, contributing to a more sustainable energy future.
Cloover
Seed Round in 2024
Cloover specializes in providing embedded financial services and software solutions tailored for the renewable energy sector. The company partners with professionals in sustainable home improvements to facilitate affordable and streamlined upgrades through flexible payment options. Its technology platform allows partners to leverage data and finance, enhancing the overall value chain and improving the customer experience. By offering a plug-and-play system, Cloover enables vendors of renewable technologies to simplify their sales processes and increase revenue, ultimately promoting subscription-based services. The company's mission is to support individuals and professionals in their pursuit of a more sustainable lifestyle through innovative financial and technological solutions.
SolarSquare
Venture Round in 2024
SolarSquare Energy is a residential solar company specializing in the design, installation, and maintenance of rooftop solar panels for homes and small commercial establishments. The company aims to promote the widespread adoption of solar energy by converting sunlight into usable electricity, thereby helping clients achieve their sustainability goals. Trusted by over 4,000 homeowners and various Fortune 500 companies, SolarSquare focuses on delivering substantial savings on energy costs, with customers typically saving a minimum of Rs. 2,000 on their monthly electricity bills.
Zanskar
Series B in 2024
Zanskar is a geothermal exploration and technology company focused on accelerating the discovery and development of geothermal energy resources. The company utilizes a predictive platform that leverages extensive data sets and advanced subsurface characterization technology. By integrating artificial intelligence and sophisticated sensing techniques, Zanskar enhances the exploration process, allowing clients to uncover previously unknown geothermal resources while minimizing associated risks. Through its innovative approach, Zanskar aims to contribute to the growth and sustainability of geothermal energy as a viable alternative energy source.
Burnbot
Series A in 2024
BurnBot is a provider of fuel treatment services aimed at preventing destructive wildfires and enhancing vegetation management. The company utilizes advanced forestry and fire technology to offer systematic wildfire mitigation solutions. Its services include safe smoke containment and a modular system designed to create precise burn areas near homes and other valuable assets. By employing high-temperature ignition methods, BurnBot helps protect communities from the threats posed by wildfires while improving firebreaks and defensible spaces that safeguard infrastructure and natural resources.
Antora Energy
Series B in 2024
Antora Energy specializes in providing zero-carbon industrial heat and power solutions for heavy industries, offering a more reliable alternative to fossil fuels. The company develops innovative thermal batteries that utilize excess solar and wind electricity to heat blocks of carbon, creating a sustainable energy source. These thermal energy storage systems effectively convert heat energy into electric energy, facilitating the electrification of heavy industry. By enabling the integration of renewable resources into the electricity grid, Antora Energy aims to deliver convenient, sustainable, and reliable electricity while significantly reducing carbon emissions on a global scale.
Clairity Technology
Seed Round in 2024
Clairity Technology is a climate-focused startup that develops low-cost, scalable technology to remove carbon dioxide from the atmosphere. Its core product is an air capture system designed to reduce atmospheric CO2 levels, contributing to a more sustainable environment.
Thea Energy
Series A in 2024
Thea Energy is focused on developing a scalable fusion energy system designed to provide a limitless, zero-emission power source for a sustainable future. Founded in 2022 as a spin-out from the Princeton Plasma Physics Laboratory and Princeton University, Thea Energy aims to innovate the stellarator, a well-established magnetic fusion technology. The company is utilizing advancements in computation and control systems to create its first integrated fusion system, Eos, which is based on a planar coil stellarator architecture. This design simplifies the traditional complex three-dimensional magnet coils, enabling continuous fusion reactions and offering utility companies a reliable alternative to intermittent renewable energy sources such as solar and wind.
River
Series B in 2024
River is an electric vehicle manufacturer focused on enhancing livelihoods through its products. The company specializes in producing high-quality utility electric mopeds, which provide customers with affordable mobility solutions suitable for various purposes, including work and recreation. By offering these economical vehicles, River aims to meet the diverse transportation needs of its clients.
Crux
Series A in 2024
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.
Pachama
Series B in 2023
Pachama is a company that utilizes artificial intelligence and satellite technology to facilitate investments in natural climate solutions. Its platform combines machine learning, satellite imaging, drones, and lidar technologies to monitor and verify carbon capture by forests. By providing continuous insights into forest health, carbon sequestration, wildlife protection, and community benefits, Pachama enables companies to identify high-quality conservation projects and track their environmental impact over time. Additionally, the company supports land stewards in developing carbon projects, thereby helping them secure funding while advancing reforestation and conservation efforts. This approach not only aids businesses in offsetting their carbon emissions but also contributes to the protection and restoration of vital forest ecosystems.
Airloom Energy
Seed Round in 2023
Airloom Energy focuses on harnessing wind energy through innovative airframe technology that operates on a lightweight track. By employing a unique geometry, the company generates energy comparable to traditional wind turbines but at a significantly reduced cost. Its system consists of multiple small airframes that move along a slender oval track, utilizing downwind forces supported by a bridling system. This flexible configuration allows for adaptation to various landscapes and energy needs, enabling clients to efficiently and economically capture wind energy. Airloom Energy is committed to providing low-cost utility-scale wind energy solutions.
Arc Boats
Series B in 2023
Arc Boats is an electric boat manufacturer offering a seamlessly connected boating experience. The boats use aerospace-inspired engineering and are designed with custom battery packs for stability, range, and speed.
Vaulted Deep
Seed Round in 2023
Vaulted Deep specializes in permanent carbon removal through innovative technology solutions that enhance both environmental and community health. As a spin-off of Advantek Waste Management Services, the company focuses on biomass carbon removal and the geologic sequestration of organic wastes. Utilizing patented geologic slurry injection technology, Vaulted Deep aims to provide clients with cost-effective, large-scale carbon dioxide removal options, addressing the urgent need for sustainable waste management and climate action.
Yard Stick
Series A in 2023
Yard Stick specializes in measuring soil carbon to support climate-friendly agricultural practices. By addressing significant measurement challenges, the company has developed an innovative handheld device that evaluates carbon stocks and changes in real-time using VisNIR spectrometry. This technology allows for accurate detection of organic carbon levels, significantly reducing the cost of soil carbon measurement by over 90%. As a result, Yard Stick aims to enhance the adoption of evidence-based regenerative practices, which can improve soil health, increase farmers' income, and contribute to combating climate change. Through its advancements, Yard Stick seeks to create opportunities for both scientists and farmers to effectively manage soil carbon, thus facilitating a more sustainable agricultural future.
Dioxycle
Series A in 2023
Dioxycle focuses on developing innovative technology for the conversion of carbon dioxide emissions into valuable chemical products. The company utilizes electricity-driven processes to transform carbon dioxide into a resource, enabling the production of everyday items while reducing reliance on fossil feedstocks like carbon monoxide, methane, and hydrocarbons. By offering solutions for industrial carbon dioxide emissions, Dioxycle aims to contribute to environmental sustainability and the transition towards cleaner energy sources.
Crux
Seed Round in 2023
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.
Gridware
Seed Round in 2023
Gridware specializes in advanced grid monitoring solutions aimed at enhancing the safety and reliability of electrical infrastructure. The company develops a sophisticated sensing system equipped with high-precision sensor arrays and artificial intelligence to continuously analyze the electrical and mechanical behavior of grid assets. This technology detects and predicts faults by monitoring the ambient environment around power poles, allowing utilities to identify potential issues before they escalate into serious problems. By facilitating timely repairs and enabling rapid responses to environmental anomalies, Gridware's solutions help mitigate risks such as wildfires and power outages. Headquartered in the Bay Area of California, Gridware is a privately held company supported by prominent climate-tech investors.
River
Series B in 2023
River is an electric vehicle manufacturer focused on enhancing livelihoods through its products. The company specializes in producing high-quality utility electric mopeds, which provide customers with affordable mobility solutions suitable for various purposes, including work and recreation. By offering these economical vehicles, River aims to meet the diverse transportation needs of its clients.
Charm Industrial
Series B in 2023
Charm Industrial has developed an innovative approach to carbon sequestration by converting agricultural residues into bio-oil, which is then injected deep underground for permanent storage. This process not only captures carbon dioxide from the atmosphere but also allows for the production of green hydrogen through the reforming of pyrolysis bio-oil. By utilizing biomass, Charm Industrial aims to provide a reliable and cost-competitive source of energy and industrial chemicals while enabling industrial clients to achieve carbon neutrality. Their technology addresses significant environmental challenges, such as wildfires and soil erosion, by ensuring that captured CO₂ remains securely stored, contributing to a sustainable energy future.
UNDO
Venture Round in 2023
UNDO is a leading developer of carbon dioxide removal projects that focuses on enhanced rock weathering, a natural process that has historically absorbed large amounts of carbon dioxide from the atmosphere. By spreading crushed, reactive rock onto agricultural land, UNDO accelerates this weathering process, where plants and soil microbes facilitate the breakdown of the rock. This process releases nutrients and bicarbonates, which ultimately transform into solid carbonate minerals in the oceans, thereby permanently sequestering carbon dioxide. The rock, sourced as a by-product from the aggregate and mining industries, is provided to local farmers at no cost and utilized with existing agricultural infrastructure. UNDO operates in the UK and US, and its model not only aims for rapid and scalable carbon removals but also offers significant benefits to local communities, such as improved soil health, ocean deacidification, and increased agricultural profits.
Avalanche Energy
Series A in 2023
Avalanche Energy is a fusion energy startup focused on developing compact micro-fusion reactors for various applications, including distributed energy, mobility, and space propulsion. The company utilizes a unique modular reactor architecture that can be stacked to provide scalable and limitless power solutions. By harnessing a self-sustaining fusion chain reaction, Avalanche Energy aims to deliver carbon-free energy while ensuring safety and eliminating long-lived radioactive waste. The company emphasizes rapid design, build, test, and fix cycles to facilitate quick development and scalability, addressing the increasing global demand for clean energy solutions.
Woodoo
Venture Round in 2023
Woodoo is a manufacturer of sustainable materials that transforms wood at the molecular level to create high-performance alternatives to steel, glass, leather, and plastics. The company focuses on utilizing substandard and damaged wood, offering a new purpose for these materials while promoting regenerative forestry practices. Woodoo's innovative processes enhance the technical characteristics and aesthetic qualities of wood, resulting in products that are sturdier, cleaner, and more cost-effective. Their offerings include automotive smart surfaces, touch-sensitive wooden interfaces, luxurious animal-free leather alternatives, and advanced structural solutions for construction. By providing carbon-efficient materials, Woodoo supports industries in meeting their decarbonization goals without compromising environmental integrity. The company has garnered recognition from prominent customers across various sectors, including automotive, luxury, and construction.
Novalith
Series A in 2023
Novalith Technologies is a climate technology company focused on developing innovative methods for lithium extraction and refining. Its proprietary LiCALTM lithium extraction technology utilizes carbon dioxide to streamline the production of lithium chemicals, significantly minimizing the need for equipment, chemical reagents, water, and energy compared to traditional methods. This approach not only lowers capital and production costs but also results in a considerably reduced emissions footprint. By directly using and sequestering CO2 in the production process, Novalith aims to provide a sustainable solution that enhances both the economic and environmental aspects of lithium production, contributing to improvements in the global battery supply chain.
Crux
Funding Round in 2023
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.
Noya
Series A in 2023
Noya is focused on addressing climate change by retrofitting existing industrial equipment to capture carbon dioxide from the atmosphere. The company's innovative technology utilizes a non-toxic chemical blend that is added to the cooling towers of various industries without requiring any structural modifications. This approach allows for effective CO2 capture while enabling businesses to contribute to environmental sustainability. By selling the captured carbon dioxide to companies that utilize it as a raw material, Noya facilitates a practical and scalable solution for reducing carbon emissions and promoting a transition towards a carbon-negative future.
Macro Oceans
Seed Round in 2023
Macro Oceans focuses on developing innovative technology that utilizes the restorative properties of seaweed to promote a cleaner, bio-based economy. The company has created a multi-product, zero-waste system aimed at revitalizing ocean ecosystems while offering sustainable alternatives for various industries. By employing a gentle extraction process, Macro Oceans preserves the unique bioactive compounds found in seaweed, resulting in high-quality, all-natural functional ingredients. These ingredients can be used to produce carbon-neutral, fully traceable bioplastics and other environmentally friendly products, enabling businesses to meet sustainability goals and consumer expectations. Through its efforts, Macro Oceans contributes to the restoration of ocean vitality and the advancement of sustainable practices.
Arbor Energy
Seed Round in 2023
Arbor was founded by a team of engineers and climate scientists who have spent their careers developing some of the most advanced rocket engine technologies and power systems. The team brings together deep experience in turbomachinery, combustion, manufacturing, technical design engineering, bioenergy and energy projects, climate science, and community engagement. Arbor’s mission is to solve the greatest problem of our generation: climate change, by reversing humanity’s climate footprint and building a truly sustainable civilization. With over a century of combined experience at aerospace companies, including SpaceX and GE, we are now working on our magnum opus. The same technology we’ve developed to get humans off this planet will now help us save it.
Lun
Seed Round in 2023
Lun decarbonises homes faster by building the operating system for heat pump installers.
Arca Climate Technologies
Pre Seed Round in 2023
Arca is a leading carbon dioxide removal (CDR) company. Arca accelerates natural process of carbon mineralization, by reacting atmospheric carbon dioxide with ultramafic mine tailings rich in magnesium silicate minerals, such as serpentine and brucite. By leveraging partnerships with mining companies, Arca transforms mine waste into a carbon sink, permanently storing CO₂ as stable carbonate minerals. The company is at the forefront of scaling carbon dioxide removal (CDR) solutions by integrating geochemical expertise, real-time monitoring, and verification methodologies. Arca collaborates with major buyers of carbon removal credits, such as Shopify, Stripe, Watershed and MaRS, and has established formal methodologies for recognizing and quantifying mineralization in voluntary and compliance carbon markets.
Renaissance Fusion
Seed Round in 2023
Renaissance Fusion is a company focused on developing high-temperature superconductors that facilitate advancements in fusion energy and medical imaging. By creating superconductors for stellarator plasma devices, Renaissance Fusion aims to make fusion electricity affordable and accessible, thereby integrating it into the energy grid. Additionally, their technology enhances the effectiveness of MRI machines, making them a routine and commonplace form of medical examination. Through these innovations, the company seeks to simplify the process of harnessing fusion energy and improve medical diagnostics.
Living Carbon
Series A in 2023
Living Carbon is a biotechnology company founded in 2019 and based in San Francisco, California. The company aims to combat climate change by developing genetically engineered trees that enhance carbon dioxide capture and storage. By leveraging advanced biotechnology, Living Carbon focuses on improving photosynthesis, inhibiting photorespiration, and increasing growth rates while reducing the time required for trees to mature. In addition to its carbon capture initiatives, the company produces durable wood suitable for building and manufacturing applications. Living Carbon operates as a public benefit corporation, committed to restoring balance to the planet's metabolic processes through innovative solutions that harness the natural capabilities of plants.
Sublime Systems
Series A in 2023
Sublime Systems specializes in decarbonizing cement through innovative technology that co-produces green hydrogen while significantly reducing emissions. The company employs an electrochemical process powered by clean, renewable energy, effectively eliminating carbon dioxide emissions without altering the cement's properties or chemistry. This approach allows builders and consumers to actively participate in the transition towards a sustainable and renewable future.
Burnbot
Seed Round in 2022
BurnBot is a provider of fuel treatment services aimed at preventing destructive wildfires and enhancing vegetation management. The company utilizes advanced forestry and fire technology to offer systematic wildfire mitigation solutions. Its services include safe smoke containment and a modular system designed to create precise burn areas near homes and other valuable assets. By employing high-temperature ignition methods, BurnBot helps protect communities from the threats posed by wildfires while improving firebreaks and defensible spaces that safeguard infrastructure and natural resources.
SolarSquare
Series A in 2022
SolarSquare Energy is a residential solar company specializing in the design, installation, and maintenance of rooftop solar panels for homes and small commercial establishments. The company aims to promote the widespread adoption of solar energy by converting sunlight into usable electricity, thereby helping clients achieve their sustainability goals. Trusted by over 4,000 homeowners and various Fortune 500 companies, SolarSquare focuses on delivering substantial savings on energy costs, with customers typically saving a minimum of Rs. 2,000 on their monthly electricity bills.
Enode
Series A in 2022
Enode is a company focused on advancing the transition to a sustainable energy system by connecting and optimizing energy devices. Through its digital platform, Enode's APIs allow businesses to seamlessly integrate users' energy hardware, such as electric vehicles, solar inverters, home batteries, and thermostats, into their applications. This streamlined approach significantly reduces the time and resources needed for integration and ongoing maintenance, making it easier for companies to develop energy management applications. By optimizing energy consumption and enabling participation in flexible energy markets, Enode supports clients in their efforts to contribute to a zero-carbon energy grid.
Solugen
Series D in 2022
Solugen, Inc. is a specialty chemicals company based in Houston, Texas, that focuses on producing industrial chemicals through industrial biotechnology and green chemistry. Founded in 2016, Solugen develops a range of environmentally friendly products, including BioPeroxide, a carbon-negative hydrogen peroxide, and BioChelate, a biodegradable chelant. The company also offers ScavSol, a multivalent metal sequestrant for energy applications; ScaleSol, an alternative to phosphonates for scale control; and CorrSol, a corrosion and fouling control product. By utilizing fermentation and enzymatic technology to convert plant sugars into chemicals, Solugen aims to replace petroleum-based products with plant-derived alternatives. Its innovative solutions are designed to benefit various industries, including agriculture, cleaning, energy, and water, while also addressing critical issues such as clean water, sustainable materials, and healthier personal care products.
Electra
Venture Round in 2022
Electra is dedicated to reducing carbon dioxide emissions in the iron and steel production industry through innovative electrochemical and hydrometallurgical processes. The company has developed alternative steelmaking technology that aims to electrify and decarbonize the production process, allowing for the creation of low-carbon clean iron from various ores. By utilizing renewable energy sources, Electra enables steel producers to lower energy intensity and costs, contributing to a more sustainable approach to steelmaking.
Fuse Energy
Venture Round in 2022
Fuse Energy, LLC is an energy company engaged in the exploration and production of oil and gas, primarily focusing on acquiring and utilizing assets in various hydrocarbon basins across the United States. Founded in 2014 and headquartered in Greenwood Village, Colorado, the company also operates as an energy supplier in the UK, offering competitive electricity tariffs. Additionally, Fuse Energy is dedicated to promoting the global renewable energy transition by providing innovative energy services, including virtual solar panels and advanced energy-saving solutions. This dual focus on traditional energy production and renewable energy solutions positions Fuse Energy as a versatile player in the energy sector, addressing both current and future energy needs.
Zanskar
Series A in 2022
Zanskar is a geothermal exploration and technology company focused on accelerating the discovery and development of geothermal energy resources. The company utilizes a predictive platform that leverages extensive data sets and advanced subsurface characterization technology. By integrating artificial intelligence and sophisticated sensing techniques, Zanskar enhances the exploration process, allowing clients to uncover previously unknown geothermal resources while minimizing associated risks. Through its innovative approach, Zanskar aims to contribute to the growth and sustainability of geothermal energy as a viable alternative energy source.
River
Series A in 2022
River is an electric vehicle manufacturer focused on enhancing livelihoods through its products. The company specializes in producing high-quality utility electric mopeds, which provide customers with affordable mobility solutions suitable for various purposes, including work and recreation. By offering these economical vehicles, River aims to meet the diverse transportation needs of its clients.
Lemon Energy
Series A in 2022
Lemon Energy is a Brazilian company based in São Paulo, founded in 2019, that specializes in renewable energy solutions. It operates solar plants that generate photovoltaic energy, enabling customers to save on electric bills while promoting sustainable energy practices. Through a fully digital platform, Lemon Energy facilitates a seamless user experience, connecting consumers with various clean energy sources, including solar, wind, biogas, and small hydroelectric plants. By creating a renewable energy marketplace, the company simplifies the process of choosing green energy options, allowing businesses and individuals to utilize environmentally friendly energy sources effectively.
SolarSquare
Seed Round in 2022
SolarSquare Energy is a residential solar company specializing in the design, installation, and maintenance of rooftop solar panels for homes and small commercial establishments. The company aims to promote the widespread adoption of solar energy by converting sunlight into usable electricity, thereby helping clients achieve their sustainability goals. Trusted by over 4,000 homeowners and various Fortune 500 companies, SolarSquare focuses on delivering substantial savings on energy costs, with customers typically saving a minimum of Rs. 2,000 on their monthly electricity bills.
Nitricity
Venture Round in 2022
Nitricity is an energy company focused on the production of renewable nitrogen fertilizers with zero carbon emissions. It specializes in creating electrified, climate-smart fertilizers, specifically nitric acid and ammonia, which can be utilized independently or together to produce ammonium nitrate fertilizer. This innovative approach aims to bring high-quality fertilizer products closer to farmers, allowing them to minimize wasteful runoff and optimize fertilizer application timing based on field readiness. By enhancing nitrogen delivery capabilities, Nitricity supports sustainable agricultural practices and contributes to environmentally responsible farming worldwide.
Zap Energy
Series C in 2022
Zap Energy, Inc., founded in 2017 and headquartered in Seattle, Washington, specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. The company’s innovative technology utilizes electric currents to create magnetic fields that confine and compress plasma, enabling efficient energy production through nuclear fusion. This approach offers a low-carbon, cost-effective, and flexible power source while requiring less capital investment compared to traditional fusion methods. By focusing on compact and scalable fusion technology, Zap Energy aims to advance sustainable energy solutions and improve the economics of fusion energy.
Seabound
Seed Round in 2022
Seabound specializes in carbon capture technology aimed at reducing CO2 emissions from cargo ships. The company has developed a system that can be integrated into existing ships, allowing these vessels to capture emissions directly from exhaust and convert the carbon dioxide into a solid form. This solid carbon can either be stored for future use or sold for various applications. Additionally, Seabound's technology can process carbon dioxide on land, producing limestone that can be sold or heated to generate calcium oxide for secondary recycling. By providing innovative solutions for both maritime and land-based carbon capture, Seabound contributes to the reduction of greenhouse gas emissions and pollution in the shipping industry.
Flair
Series A in 2022
Flair makes smart vents and wireless thermostats and advanced software for residential heating and cooling. The company builds smart hardware and software for HVAC controls focused on efficiency, comfort, electrification, and smart grid integration. The company's products are sold through multiple channels including direct to consumer, HVAC distribution, and utilities.
Avalanche Energy
Seed Round in 2022
Avalanche Energy is a fusion energy startup focused on developing compact micro-fusion reactors for various applications, including distributed energy, mobility, and space propulsion. The company utilizes a unique modular reactor architecture that can be stacked to provide scalable and limitless power solutions. By harnessing a self-sustaining fusion chain reaction, Avalanche Energy aims to deliver carbon-free energy while ensuring safety and eliminating long-lived radioactive waste. The company emphasizes rapid design, build, test, and fix cycles to facilitate quick development and scalability, addressing the increasing global demand for clean energy solutions.
Heirloom
Series A in 2022
Heirloom specializes in direct air capture technology aimed at enhancing the natural absorption of carbon dioxide from the atmosphere. The company's innovative system accelerates the ability of limestone to capture CO2, allowing for its permanent storage underground. By operating on renewable energy, Heirloom's technology promotes carbon capture and utilization at a large scale, with the goal of removing significant amounts of atmospheric CO2. This approach not only minimizes secondary impacts but also supports clients in restoring the atmosphere through natural processes.
OzoneBio
Seed Round in 2022
OzoneBio is a cleantech company based in Calgary, Canada, founded in 2021. The company specializes in the production of bio-plastics derived from lignocellulosic waste, utilizing a unique dead cell fermentation technology known as "Zombie cells." This innovative approach allows OzoneBio to convert challenging and toxic feedstocks into high-value products while circumventing the significant costs and complexities associated with traditional live-cell fermentation methods. The company's offerings include wood-waste derived adipic acid and vanillin, which serve as sustainable alternatives in various industries. By focusing on waste reduction and the conversion of waste products into usable materials, OzoneBio contributes to environmental sustainability while providing valuable applications for its clients.
Linear Labs
Series A in 2022
Linear Labs, Inc., based in Fort Worth, Texas, specializes in manufacturing innovative electric motors for various industries, including electric vehicles, micro-mobility, robotics, and HVAC systems. The company's flagship product, the Hunstable Electric Turbine, features a unique design with multiple rotors, allowing it to perform efficiently under diverse conditions. Linear Labs focuses on enhancing energy utilization with its advanced motor systems, which can adapt their physical design in real-time to optimize performance. This technology results in significant improvements in torque, extended operational range, and reduced power consumption. By utilizing these new motor designs, customers can lower costs associated with components, raw materials, and assembly while increasing overall motor efficiency. Founded in 2012, Linear Labs aims to lead the evolution of electric motor technology for a more sustainable future.
Living Carbon
Series A in 2022
Living Carbon is a biotechnology company founded in 2019 and based in San Francisco, California. The company aims to combat climate change by developing genetically engineered trees that enhance carbon dioxide capture and storage. By leveraging advanced biotechnology, Living Carbon focuses on improving photosynthesis, inhibiting photorespiration, and increasing growth rates while reducing the time required for trees to mature. In addition to its carbon capture initiatives, the company produces durable wood suitable for building and manufacturing applications. Living Carbon operates as a public benefit corporation, committed to restoring balance to the planet's metabolic processes through innovative solutions that harness the natural capabilities of plants.
Antora Energy
Series A in 2022
Antora Energy specializes in providing zero-carbon industrial heat and power solutions for heavy industries, offering a more reliable alternative to fossil fuels. The company develops innovative thermal batteries that utilize excess solar and wind electricity to heat blocks of carbon, creating a sustainable energy source. These thermal energy storage systems effectively convert heat energy into electric energy, facilitating the electrification of heavy industry. By enabling the integration of renewable resources into the electricity grid, Antora Energy aims to deliver convenient, sustainable, and reliable electricity while significantly reducing carbon emissions on a global scale.
Verdox
Venture Round in 2022
Verdox is dedicated to reversing climate change through the development and deployment of advanced technology. The company’s proprietary electro-swing process, developed at MIT, enables carbon dioxide and other acid gases to be captured with up to 80% less energy and 70% less cost than conventional approaches.
Epoch Biodesign
Seed Round in 2022
Epoch Biodesign focuses on creating natural solutions to address climate challenges through the development of innovative enzymes. By integrating insights from nature with expertise in computational and biological sciences, the company enables the biorecycling of plastic waste into everyday chemicals. Their enzymatic process is tunable, allowing for efficient conversion of unrecyclable plastics into low-carbon alternatives. Epoch Biodesign's approach not only facilitates the recycling of plastic waste but also enhances the discovery and development of products using complex proteins, positioning the company as a significant player in advancing sustainable practices in waste management.
Kula Bio
Series A in 2022
Kula Bio, Inc. is focused on developing innovative biological solutions for modern agriculture. Founded in 2018 and based in Somerville, Massachusetts, the company specializes in the production of organic biofertilizers using nitrogen-fixing microbes charged with renewable energy. By enhancing natural microbial processes, Kula Bio aims to create affordable and sustainable fertilization methods that enable farmers to increase their yields while promoting environmental stewardship. The company's approach seeks to disrupt traditional synthetic fertilizers, bridging the gap between effective agricultural practices and the responsible management of natural resources.
Helio Home
Seed Round in 2021
Helio is a company focused on facilitating the transition from fossil fuels to complete electrification of homes. It operates an innovative online platform that provides customers with a straightforward and cost-effective approach to achieve whole-home electrification. The platform integrates various systems including solar energy, heating and cooling, electrical systems, insulation, and ventilation, ensuring a holistic design for energy efficiency. By promoting the use of electric solutions, Helio aims to help customers reduce their carbon footprints and minimize reliance on fossil fuels, contributing to a more sustainable future.
Arc Boats
Series A in 2021
Arc Boats is an electric boat manufacturer offering a seamlessly connected boating experience. The boats use aerospace-inspired engineering and are designed with custom battery packs for stability, range, and speed.
Normative.io
Series A in 2021
Normative.io is a carbon accounting engine that helps businesses achieve net zero emissions. It is software capable of assessing a company’s social and environmental impact automatically by analyzing their purchases, using artificial intelligence combined with the world's largest sustainability research database. Their goal is to make the social and environmental cost of every purchase in their economy transparent. This will enable humanity to move towards achieving sustainable development goals together.
Yard Stick
Seed Round in 2021
Yard Stick specializes in measuring soil carbon to support climate-friendly agricultural practices. By addressing significant measurement challenges, the company has developed an innovative handheld device that evaluates carbon stocks and changes in real-time using VisNIR spectrometry. This technology allows for accurate detection of organic carbon levels, significantly reducing the cost of soil carbon measurement by over 90%. As a result, Yard Stick aims to enhance the adoption of evidence-based regenerative practices, which can improve soil health, increase farmers' income, and contribute to combating climate change. Through its advancements, Yard Stick seeks to create opportunities for both scientists and farmers to effectively manage soil carbon, thus facilitating a more sustainable agricultural future.
Nitricity
Seed Round in 2021
Nitricity is an energy company focused on the production of renewable nitrogen fertilizers with zero carbon emissions. It specializes in creating electrified, climate-smart fertilizers, specifically nitric acid and ammonia, which can be utilized independently or together to produce ammonium nitrate fertilizer. This innovative approach aims to bring high-quality fertilizer products closer to farmers, allowing them to minimize wasteful runoff and optimize fertilizer application timing based on field readiness. By enhancing nitrogen delivery capabilities, Nitricity supports sustainable agricultural practices and contributes to environmentally responsible farming worldwide.
Holy Grail
Seed Round in 2021
Holy Grail is engaged in the development of advanced air carbon capture technology, focusing on capturing carbon dioxide from the atmosphere and permanently storing it above ground. The company's innovative device utilizes electrons to extract CO2 from large centralized emitters, contributing to efforts in mitigating climate change. In addition to carbon capture, Holy Grail is involved in research and engineering related to various products, including batteries and catalysts. This work enables industrial clients to optimize energy efficiency and economic performance by cross-validating predictions and simulations with experimental data. Through its initiatives, Holy Grail aims to play a significant role in reducing atmospheric carbon levels and promoting sustainable practices.
Kula Bio
Seed Round in 2021
Kula Bio, Inc. is focused on developing innovative biological solutions for modern agriculture. Founded in 2018 and based in Somerville, Massachusetts, the company specializes in the production of organic biofertilizers using nitrogen-fixing microbes charged with renewable energy. By enhancing natural microbial processes, Kula Bio aims to create affordable and sustainable fertilization methods that enable farmers to increase their yields while promoting environmental stewardship. The company's approach seeks to disrupt traditional synthetic fertilizers, bridging the gap between effective agricultural practices and the responsible management of natural resources.
Heirloom
Pre Seed Round in 2021
Heirloom specializes in direct air capture technology aimed at enhancing the natural absorption of carbon dioxide from the atmosphere. The company's innovative system accelerates the ability of limestone to capture CO2, allowing for its permanent storage underground. By operating on renewable energy, Heirloom's technology promotes carbon capture and utilization at a large scale, with the goal of removing significant amounts of atmospheric CO2. This approach not only minimizes secondary impacts but also supports clients in restoring the atmosphere through natural processes.
Zap Energy
Series B in 2021
Zap Energy, Inc., founded in 2017 and headquartered in Seattle, Washington, specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. The company’s innovative technology utilizes electric currents to create magnetic fields that confine and compress plasma, enabling efficient energy production through nuclear fusion. This approach offers a low-carbon, cost-effective, and flexible power source while requiring less capital investment compared to traditional fusion methods. By focusing on compact and scalable fusion technology, Zap Energy aims to advance sustainable energy solutions and improve the economics of fusion energy.
Pachama
Series A in 2021
Pachama is a company that utilizes artificial intelligence and satellite technology to facilitate investments in natural climate solutions. Its platform combines machine learning, satellite imaging, drones, and lidar technologies to monitor and verify carbon capture by forests. By providing continuous insights into forest health, carbon sequestration, wildlife protection, and community benefits, Pachama enables companies to identify high-quality conservation projects and track their environmental impact over time. Additionally, the company supports land stewards in developing carbon projects, thereby helping them secure funding while advancing reforestation and conservation efforts. This approach not only aids businesses in offsetting their carbon emissions but also contributes to the protection and restoration of vital forest ecosystems.
Flair
Funding Round in 2021
Flair makes smart vents and wireless thermostats and advanced software for residential heating and cooling. The company builds smart hardware and software for HVAC controls focused on efficiency, comfort, electrification, and smart grid integration. The company's products are sold through multiple channels including direct to consumer, HVAC distribution, and utilities.
Enode
Seed Round in 2021
Enode is a company focused on advancing the transition to a sustainable energy system by connecting and optimizing energy devices. Through its digital platform, Enode's APIs allow businesses to seamlessly integrate users' energy hardware, such as electric vehicles, solar inverters, home batteries, and thermostats, into their applications. This streamlined approach significantly reduces the time and resources needed for integration and ongoing maintenance, making it easier for companies to develop energy management applications. By optimizing energy consumption and enabling participation in flexible energy markets, Enode supports clients in their efforts to contribute to a zero-carbon energy grid.
Remora
Seed Round in 2021
Remora is a company that develops an emission-controlling device for semi-trucks, designed to capture at least 80% of carbon emissions directly from the tailpipe. The device is mounted between the cab and trailer, utilizing a solid sorbent that selectively binds with carbon dioxide molecules in the exhaust stream. This technology regenerates using exhaust heat, ensuring efficient operation without clogging. By capturing carbon emissions, Remora enables companies to meet their climate commitments and earn credits for the carbon dioxide collected. The captured CO2 is sold to end-users for long-term storage, and the revenue generated is shared with customers, allowing the device to pay for itself within a few years.
Noya
Seed Round in 2021
Noya is focused on addressing climate change by retrofitting existing industrial equipment to capture carbon dioxide from the atmosphere. The company's innovative technology utilizes a non-toxic chemical blend that is added to the cooling towers of various industries without requiring any structural modifications. This approach allows for effective CO2 capture while enabling businesses to contribute to environmental sustainability. By selling the captured carbon dioxide to companies that utilize it as a raw material, Noya facilitates a practical and scalable solution for reducing carbon emissions and promoting a transition towards a carbon-negative future.
Yard Stick
Pre Seed Round in 2021
Yard Stick specializes in measuring soil carbon to support climate-friendly agricultural practices. By addressing significant measurement challenges, the company has developed an innovative handheld device that evaluates carbon stocks and changes in real-time using VisNIR spectrometry. This technology allows for accurate detection of organic carbon levels, significantly reducing the cost of soil carbon measurement by over 90%. As a result, Yard Stick aims to enhance the adoption of evidence-based regenerative practices, which can improve soil health, increase farmers' income, and contribute to combating climate change. Through its advancements, Yard Stick seeks to create opportunities for both scientists and farmers to effectively manage soil carbon, thus facilitating a more sustainable agricultural future.
Arc Boats
Seed Round in 2021
Arc Boats is an electric boat manufacturer offering a seamlessly connected boating experience. The boats use aerospace-inspired engineering and are designed with custom battery packs for stability, range, and speed.
Linear Labs
Venture Round in 2020
Linear Labs, Inc., based in Fort Worth, Texas, specializes in manufacturing innovative electric motors for various industries, including electric vehicles, micro-mobility, robotics, and HVAC systems. The company's flagship product, the Hunstable Electric Turbine, features a unique design with multiple rotors, allowing it to perform efficiently under diverse conditions. Linear Labs focuses on enhancing energy utilization with its advanced motor systems, which can adapt their physical design in real-time to optimize performance. This technology results in significant improvements in torque, extended operational range, and reduced power consumption. By utilizing these new motor designs, customers can lower costs associated with components, raw materials, and assembly while increasing overall motor efficiency. Founded in 2012, Linear Labs aims to lead the evolution of electric motor technology for a more sustainable future.
Zap Energy
Series A in 2020
Zap Energy, Inc., founded in 2017 and headquartered in Seattle, Washington, specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. The company’s innovative technology utilizes electric currents to create magnetic fields that confine and compress plasma, enabling efficient energy production through nuclear fusion. This approach offers a low-carbon, cost-effective, and flexible power source while requiring less capital investment compared to traditional fusion methods. By focusing on compact and scalable fusion technology, Zap Energy aims to advance sustainable energy solutions and improve the economics of fusion energy.
Mombak
Mombak is a carbon removal company dedicated to reforesting the Amazon. It specializes in cultivating native, biodiverse forests that effectively remove carbon from the atmosphere while ensuring high integrity in its projects. The company's initiatives are designed to achieve significant additionality and durability, with minimal leakage, thus enhancing biodiversity and supporting socioeconomic development in local communities. Mombak's team consists of experts in science, technology, forestry, and carbon markets, all working together to improve forestry practices and contribute to a sustainable future.
Rainmaker Technology
Rainmaker employs cutting-edge technology to generate rain, replenish water sources, and address drought challenges sustainably and effectively.
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