Lowercarbon Capital

Lowercarbon Capital is a venture capital firm founded in 2018 and based in Jackson, Wyoming, that funds research and invests in companies developing technologies to reduce CO2 emissions and advance decarbonization, with a focus on energy, transportation, industrial materials, and agriculture.
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Sidney Brown

Associate

Duncan Carlson

Associate

Christina Chang

Partner

Clay Dumas

General Partner

Kristin Ellis

Partner

Eric Helfgott

Associate

Caie Kelley

Principal

Clea Kolster

Partner

Ryan Orbuch

Partner

Lauren O'Connor

Operating Partner

Alex Prather

Associate

Ashton Rosin

Operating Partner and Head of Capital Formation

Crystal English Sacca

Partner

Shawn Xu

Partner

Shuo Yang

Partner

Past deals in CleanTech

Electra

Series B in 2025
Electra is a company dedicated to revolutionizing iron and steel production by significantly reducing carbon dioxide emissions. It specializes in alternative steelmaking technology that employs innovative electrochemical and hydrometallurgical processes. By electrifying and decarbonizing the steelmaking process, Electra enables the production of low-carbon clean iron from various ores and renewable energy sources. This approach not only minimizes the environmental impact associated with traditional steel production but also helps companies lower energy intensity and costs, promoting sustainability within the industry.

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 develops magnetic confinement fusion technologies for affordable electricity generation and net-zero emission goals. It specializes in constructing highly efficient stellarators using High Temperature Superconducting magnets, aiming to enable businesses to contribute to a sustainable energy future.

Heirloom

Series B in 2024
Heirloom is a carbon capture company developing direct air capture technology that accelerates the natural absorption of carbon dioxide. Its approach uses a limestone-based process to increase CO2 uptake and stores the captured carbon permanently underground, powered by renewable energy. The company also applies carbon capture and utilization techniques to enhance natural CO2 removal. By offering a scalable, renewable-energy driven solution, Heirloom aims to help businesses meet sustainability goals with a cost-effective path to significant carbon removal.

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 specializes in marine ecosystem restoration using advanced drone technology. It collects seagrass seeds, replants them, and monitors growth autonomously, enabling cost-effective, large-scale restoration projects for governments, developers, and non-profits.

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, combining innovation with practical design to meet the growing demand for clean energy sources. The company's core product is a magnetic fusion system designed to optimize for various target designs, enabling businesses to generate low-cost power and heat using deuterium-tritium fuel.

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.

Lithios

Seed Round in 2024
Lithios is a technology company that uses electrochemistry for advanced lithium extraction from complex mixtures and untapped brine resources, applying electrochemical methods to capture and release lithium and enable low-cost, selective extraction for industries pursuing a sustainable, electrified future.

Vaulted Deep

Series A in 2024
Vaulted Deep specializes in innovative waste management solutions. It employs patented geologic slurry injection technology to permanently sequester organic wastes underground, achieving significant carbon dioxide removal while promoting local environmental health.

Zap Energy

Series D in 2024
Zap Energy, Inc. is a Seattle-based company that specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. Founded in 2017, the company focuses on developing compact and scalable fusion technology that offers low-carbon, cost-effective, and flexible energy solutions. Unlike conventional fusion methods, Zap Energy's approach utilizes electric current to create magnetic fields that confine and compress plasma, enhancing the stability and efficiency of the fusion process. This innovative technology aims to provide sustainable energy while requiring less capital investment compared to traditional fusion systems.

Carbyon

Series A in 2024
Carbyon is a Dutch company specializing in direct air capture (DAC) technologies. It filters CO2 from the atmosphere, purifies it, and supplies it to produce kerosene for aircraft, enabling the existing fossil industry to repurpose storage and transport facilities for renewable hydrocarbons.

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 Technology

Seed Round in 2024
Aepnus Technology develops electrolysis equipment designed to refine minerals and desalinate water. Its technology enables the production of low-cost electrified chemicals, facilitating the transition towards a carbon-free industry.

Xcimer

Series A in 2024
Xcimer Energy is an innovative company focused on developing laser-driven fusion technology to deliver affordable, abundant, and carbon-free energy. Founded in 2021 and based in Redwood City, California, Xcimer integrates low-cost excimer laser technology with the HYLIFE reaction chamber concept to create a scalable Inertial Fusion Energy (IFE) system. This approach addresses significant challenges that have historically hindered the viability of fusion power, enabling the application of experimentally proven controlled fusion reactions for electrical power generation. By transforming the energy marketplace, Xcimer aims to provide a sustainable energy solution that can meet growing global demands.

Cloover

Seed Round in 2024
Cloover offers an embedded financial services platform for the renewable energy industry. It collaborates with professionals to streamline sustainable home upgrades, providing flexible payment options and enhancing customer experience through technology and data.

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 informed by extensive data, which includes subsurface characterization technology and advanced sensing techniques. By integrating artificial intelligence and big data, Zanskar enhances the exploration process and helps clients identify previously unknown geothermal resources, ultimately reducing the risks associated with such endeavors. Through its innovative approach, Zanskar aims to contribute to the advancement of geothermal energy as a sustainable resource.

Quilt

Series A in 2024
Quilt is a company focused on smart home climate solutions, specializing in advanced home temperature control technology designed to enhance energy efficiency. Its AI-driven systems seamlessly integrate into various home environments, providing users with room-by-room control and occupancy awareness features. This technology not only optimizes energy use but also incorporates predictive capabilities to ensure comfort. Additionally, Quilt's ductless heat pump system operates with zero carbon emissions, utilizing clean energy sources to promote sustainability and help users transition away from traditional combustion methods. Overall, Quilt aims to deliver a sleek and intelligent solution for modern heating and cooling needs, contributing to a more sustainable future.

BurnBot

Series A in 2024
BurnBot specializes in wildfire mitigation and vegetation management services. It combines expertise in forestry with advanced fire technology to systematically treat fuel sources, preventing destructive wildfires.

Clairity Technology

Seed Round in 2024
Clairity Technology is a climate startup focused on developing low-cost, scalable technology aimed at harvesting carbon dioxide from the atmosphere. The company has designed an air capture system that effectively reduces carbon dioxide levels, contributing to a more sustainable environment. By addressing the growing challenge of atmospheric CO2, Clairity Technology offers innovative solutions that support both individual and collective efforts in combating climate change.

Eli

Venture Round in 2024
Eli is a digital platform that simplifies access to incentives, rebates, and low-interest financing for contractors, installers, and retailers involved in consumer decarbonization projects. These projects encompass a range of technologies, including heat pumps, electric vehicle chargers, heat pump water heaters, solar energy systems, and battery storage solutions. Eli’s technology is built upon extensive user testing and real-world data, aiming to assist individuals facing significant barriers to access these programs. The platform effectively screens and qualifies applicants for various incentives by navigating complex eligibility rules, verifying income, and collecting necessary documentation, all while providing personalized information about incentive eligibility. This approach ensures that users receive comprehensive support without the need to visit multiple third-party websites, enabling businesses to maximize the incentives available to them.

Lilac Solutions

Series C in 2024
Lilac Solutions, Inc. is a mining technology company based in Oakland, California, specializing in lithium extraction technology. Founded in 2015, the company develops innovative solutions that utilize ion-exchange theory to absorb lithium from brine deposits. This technology includes ion exchange beads and continuous brine processing systems, which enable lithium producers to enhance project development, increase lithium recovery, and optimize operations. Lilac Solutions aims to support industries such as electric vehicles and renewable energy storage by providing methods that reduce both costs and environmental impact associated with lithium production.

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/.

Zeno

Venture Round in 2023
Zeno is a climate conscious motor company that offers eco-friendly motorcycles.

Breathe Battery Technologies

Series A in 2023
Physics-based adaptive charging for software-defined batteries. We help the world’s leading automotive and consumer electronics brands deliver superior charging experiences. Our dream is that one day everyone will breathe clean air. That's why we make batteries better.

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.

Lumen Energy

Venture Round in 2023
Lumen Energy specializes in assisting building owners reduce energy costs through clean energy solutions. It offers a platform that enables commercial real estate owners to generate revenue from solar power and batteries, while also reducing carbon emissions.

Vaulted Deep

Seed Round in 2023
Vaulted Deep specializes in innovative waste management solutions. It employs patented geologic slurry injection technology to permanently sequester organic wastes underground, achieving significant carbon dioxide removal while promoting local environmental health.

Dioxycle

Series A in 2023
Dioxycle develops electrolyser solutions that convert captured carbon dioxide into valuable chemical products. Its technology enables businesses to treat carbon dioxide as a resource, reducing reliance on fossil feedstocks and lowering industrial emissions.

Isometric

Seed Round in 2023
Isometric operates a registry for high-quality science-backed carbon removal credits. Its platform verifies and records carbon removal claims transparently, enabling companies to obtain scientific carbon credit certification to meet their climate commitments.

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/.

Charm Industrial

Series B in 2023
Charm Industrial develops carbon removal technology that converts agricultural residues into bio-oil via fast pyrolysis and injects the bio-oil into deep geological formations for permanent underground storage, enabling long-term carbon offsetting and contributing to climate change mitigation.

UNDO

Venture Round in 2023
UNDO is a world-leading carbon dioxide removal project developer specialising in enhanced rock weathering. UNDO focuses on permanent carbon removal by utilizing enhanced rock weathering to capture CO2 from the atmosphere. The company spreads crushed silicate rock on agricultural land, accelerating the natural weathering process and enriching soil health.

Quilt

Seed Round in 2023
Quilt is a company focused on smart home climate solutions, specializing in advanced home temperature control technology designed to enhance energy efficiency. Its AI-driven systems seamlessly integrate into various home environments, providing users with room-by-room control and occupancy awareness features. This technology not only optimizes energy use but also incorporates predictive capabilities to ensure comfort. Additionally, Quilt's ductless heat pump system operates with zero carbon emissions, utilizing clean energy sources to promote sustainability and help users transition away from traditional combustion methods. Overall, Quilt aims to deliver a sleek and intelligent solution for modern heating and cooling needs, contributing to a more sustainable future.

Pledge

Series A in 2023
Pledge is a company that enables businesses to easily implement climate solutions for their customers. Founded in 2021 by former employees of Revolut and the co-founder of Freetrade, Pledge provides a streamlined and automated infrastructure that integrates climate solutions into customer interactions. Their tools assist supply chain leaders and freight forwarders in measuring, reporting, and reducing logistics emissions, facilitating a more climate-conscious approach. By offering solutions for greenhouse gas measurement, offsetting, and reporting, Pledge supports businesses in their efforts to transition to net zero emissions effectively.

Avalanche Energy

Series A in 2023
Avalanche Energy develops compact fusion reactors for distributed energy applications. Its modular reactor design enables clean energy production with high energy density, facilitating decarbonization efforts.

Woodoo

Venture Round in 2023
Woodoo transforms substandard wood into sustainable, high-performance biomaterials, offering eco-friendly alternatives to steel, glass, leather, and plastics. Its products serve diverse industries such as automotive, luxury goods, and construction, providing durable, cost-effective solutions while reducing emissions.

Novalith Technologies

Series A in 2023
Novalith Technologies is a climate technology company that uses carbon dioxide in its LiCAL™ lithium extraction process. This innovative method significantly reduces equipment, chemical reagents, water, and energy usage compared to conventional processing, lowering capital and production costs. Additionally, it minimizes emissions by directly using and sequestering CO2.

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 develops carbon capture technology that enables industrial facilities to remove CO2 from the atmosphere by retrofitting existing equipment. The company adds a non-toxic CO2 absorbing chemical blend to current cooling towers, allowing simultaneous cooling and carbon capture without major mechanical changes to the towers. The captured CO2 is then sold to companies that use it as a raw material, supporting other industries' climate initiatives. Noya's approach is aimed at accelerating the world’s transition toward a carbon-negative economy by providing a modular, retrofit-based solution that tackles emissions from industrial cooling processes.

Macro Oceans

Seed Round in 2023
Macro Oceans is a company focused on developing technology that harnesses the restorative power of seaweed to promote a cleaner, bio-based economy. It has created a multi-product zero-waste system aimed at restoring ocean vitality. The company specializes in a gentle extraction process that preserves the unique bioactive compounds found in seaweed, allowing it to produce a range of all-natural, functional plant-based ingredients. These ingredients are utilized in the development of bioplastics for packaging and other applications, enabling businesses to meet customer demands for environmentally friendly products that are carbon-neutral and fully traceable. Through its innovative approach, Macro Oceans contributes to sustainability and environmental stewardship while advancing the use of renewable resources.

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.

Loam Bio

Series B in 2023
Loam Bio is a company focused on manufacturing microbial products designed to reduce atmospheric CO2 levels and enhance soil fertility. Founded in 2016 and based in Orange, Australia, the company is engaged in developing innovative technology that enables the inoculation of crops with symbiotic micro-organisms. This approach aims to improve agricultural sustainability by promoting healthier soils and more efficient carbon management.

Eli

Pre Seed Round in 2023
Eli is a digital platform that simplifies access to incentives, rebates, and low-interest financing for contractors, installers, and retailers involved in consumer decarbonization projects. These projects encompass a range of technologies, including heat pumps, electric vehicle chargers, heat pump water heaters, solar energy systems, and battery storage solutions. Eli’s technology is built upon extensive user testing and real-world data, aiming to assist individuals facing significant barriers to access these programs. The platform effectively screens and qualifies applicants for various incentives by navigating complex eligibility rules, verifying income, and collecting necessary documentation, all while providing personalized information about incentive eligibility. This approach ensures that users receive comprehensive support without the need to visit multiple third-party websites, enabling businesses to maximize the incentives available to them.

Renaissance Fusion

Seed Round in 2023
Renaissance Fusion develops magnetic confinement fusion technologies for affordable electricity generation and net-zero emission goals. It specializes in constructing highly efficient stellarators using High Temperature Superconducting magnets, aiming to enable businesses to contribute to a sustainable energy future.

Living Carbon

Series A in 2023
Living Carbon is a public benefit corporation based in San Francisco, California, founded in 2019 by Maddie Hall and Patrick Mellor. The company leverages advanced biotechnology to enhance the natural ability of plants, particularly trees, to capture and store carbon dioxide (CO2). By improving photosynthesis, inhibiting photorespiration, increasing growth rates, and shortening tree growing cycles, Living Carbon aims to create more durable wood for building and manufacturing applications while addressing climate change. The company's ultimate goal is to restore balance to the planet's metabolic processes through innovative forest biotechnology solutions.

Sublime Systems

Series A in 2023
Sublime Systems develops cement decarbonization technology that reduces cement emissions while co-producing green hydrogen. The system relies on clean, renewable energy and an electrochemical process that eliminates carbon dioxide emissions without altering the cement’s properties or chemistry. The technology enables builders to use lower-emission cement as part of a broader move toward a sustainable, renewable future.

BurnBot

Seed Round in 2022
BurnBot specializes in wildfire mitigation and vegetation management services. It combines expertise in forestry with advanced fire technology to systematically treat fuel sources, preventing destructive wildfires.

Electra

Venture Round in 2022
Electra is a company dedicated to revolutionizing iron and steel production by significantly reducing carbon dioxide emissions. It specializes in alternative steelmaking technology that employs innovative electrochemical and hydrometallurgical processes. By electrifying and decarbonizing the steelmaking process, Electra enables the production of low-carbon clean iron from various ores and renewable energy sources. This approach not only minimizes the environmental impact associated with traditional steel production but also helps companies lower energy intensity and costs, promoting sustainability within the industry.

Fuse Energy

Venture Round in 2022
Founded in 2014, Fuse Energy is an independent oil and gas exploration and production company based in Greenwood Village, Colorado. The company focuses on acquiring and exploiting assets across various hydrocarbon basins within the United States.

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 informed by extensive data, which includes subsurface characterization technology and advanced sensing techniques. By integrating artificial intelligence and big data, Zanskar enhances the exploration process and helps clients identify previously unknown geothermal resources, ultimately reducing the risks associated with such endeavors. Through its innovative approach, Zanskar aims to contribute to the advancement of geothermal energy as a sustainable resource.

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.

Zap Energy

Series C in 2022
Zap Energy, Inc. is a Seattle-based company that specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. Founded in 2017, the company focuses on developing compact and scalable fusion technology that offers low-carbon, cost-effective, and flexible energy solutions. Unlike conventional fusion methods, Zap Energy's approach utilizes electric current to create magnetic fields that confine and compress plasma, enhancing the stability and efficiency of the fusion process. This innovative technology aims to provide sustainable energy while requiring less capital investment compared to traditional fusion systems.

Seabound

Seed Round in 2022
Seabound is a developer of innovative carbon capture systems aimed at reducing CO2 emissions from cargo ships. The company's technology integrates seamlessly with existing vessels, equipping them with an onboard device that captures emissions from exhaust and converts carbon dioxide into a solid form. This solidified carbon can be stored for future utilization or sequestration, significantly mitigating greenhouse gas emissions and pollution associated with maritime transport. Additionally, Seabound's carbon capture method enables the processing of carbon dioxide on land, producing limestone that can be sold directly or transformed into calcium oxide for secondary recycling. Through its advancements, Seabound contributes to the sustainability of shipping operations and supports efforts to combat climate change.

Artyc

Seed Round in 2022
Artyc specializes in providing sustainable cold shipping solutions tailored for the biotech, pharmaceutical, and medical sectors. The company manufactures refrigerant-free, reusable, active cooling containers that enhance the efficiency of cold logistics. By focusing on decarbonizing the cold chain, Artyc aims to create a more sustainable logistics industry. Their innovative containers not only help businesses reduce shipping costs but also enable effective temperature monitoring, ensuring the safe transport of sensitive goods.

Avalanche Energy

Seed Round in 2022
Avalanche Energy develops compact fusion reactors for distributed energy applications. Its modular reactor design enables clean energy production with high energy density, facilitating decarbonization efforts.

Heirloom

Series A in 2022
Heirloom is a carbon capture company developing direct air capture technology that accelerates the natural absorption of carbon dioxide. Its approach uses a limestone-based process to increase CO2 uptake and stores the captured carbon permanently underground, powered by renewable energy. The company also applies carbon capture and utilization techniques to enhance natural CO2 removal. By offering a scalable, renewable-energy driven solution, Heirloom aims to help businesses meet sustainability goals with a cost-effective path to significant carbon removal.

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.

Living Carbon

Series A in 2022
Living Carbon is a public benefit corporation based in San Francisco, California, founded in 2019 by Maddie Hall and Patrick Mellor. The company leverages advanced biotechnology to enhance the natural ability of plants, particularly trees, to capture and store carbon dioxide (CO2). By improving photosynthesis, inhibiting photorespiration, increasing growth rates, and shortening tree growing cycles, Living Carbon aims to create more durable wood for building and manufacturing applications while addressing climate change. The company's ultimate goal is to restore balance to the planet's metabolic processes through innovative forest biotechnology solutions.

Running Tide

Series B in 2022
Running Tide optimizes aquaculture techniques to produce healthy, low-carbon protein while analyzing ocean data for carbon removal solutions.

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.

Kula Bio

Series A in 2022
Kula Bio, Inc. is a biotechnology company focused on developing sustainable solutions for modern agriculture. Founded in 2018 and headquartered in Somerville, Massachusetts, the company specializes in biofertilizers that harness nitrogen-fixing microbes energized by renewable energy sources. This innovative approach allows Kula Bio to produce organic nitrogen fertilizers that aim to replace traditional synthetic fertilizers, promoting both agricultural productivity and environmental stewardship. By enhancing natural microbial processes, Kula Bio’s products enable farmers to improve crop yields while prioritizing sustainability and eco-friendliness in farming practices.

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.

Loam Bio

Series A in 2021
Loam Bio is a company focused on manufacturing microbial products designed to reduce atmospheric CO2 levels and enhance soil fertility. Founded in 2016 and based in Orange, Australia, the company is engaged in developing innovative technology that enables the inoculation of crops with symbiotic micro-organisms. This approach aims to improve agricultural sustainability by promoting healthier soils and more efficient carbon management.

Pledge

Seed Round in 2021
Pledge is a company that enables businesses to easily implement climate solutions for their customers. Founded in 2021 by former employees of Revolut and the co-founder of Freetrade, Pledge provides a streamlined and automated infrastructure that integrates climate solutions into customer interactions. Their tools assist supply chain leaders and freight forwarders in measuring, reporting, and reducing logistics emissions, facilitating a more climate-conscious approach. By offering solutions for greenhouse gas measurement, offsetting, and reporting, Pledge supports businesses in their efforts to transition to net zero emissions effectively.

Normative.io

Series A in 2021
Normative.io is a software company that specializes in assessing the social and environmental impact of companies by analyzing their purchases. Utilizing artificial intelligence and the world's largest sustainability research database, Normative's platform provides an emission accounting engine that helps organizations calculate their total carbon dioxide emissions. The software also offers visual analytics and generates comprehensive sustainability reports, processing both internal and external data to automate carbon reporting. By making the social and environmental costs of purchases transparent, Normative aims to facilitate progress toward achieving the Sustainable Development Goals and assist businesses in reducing their environmental footprint.

Lilac Solutions

Series B in 2021
Lilac Solutions, Inc. is a mining technology company based in Oakland, California, specializing in lithium extraction technology. Founded in 2015, the company develops innovative solutions that utilize ion-exchange theory to absorb lithium from brine deposits. This technology includes ion exchange beads and continuous brine processing systems, which enable lithium producers to enhance project development, increase lithium recovery, and optimize operations. Lilac Solutions aims to support industries such as electric vehicles and renewable energy storage by providing methods that reduce both costs and environmental impact associated with lithium production.

Holy Grail

Seed Round in 2021
Holy Grail develops an air carbon capture device designed to capture carbon dioxide from large centralized emitters and the atmosphere, with the captured CO2 permanently stored above ground. The device uses an electrochemical approach that employs electrons to facilitate carbon capture. The company engages in research and development and engineering of products such as batteries, catalysts, and material datasets that can be used to cross-validate predictions and simulations of experimental data. This technology is positioned to help industrial clients improve energy efficiency and economics by reducing emissions and enabling practical carbon management.

Kula Bio

Seed Round in 2021
Kula Bio, Inc. is a biotechnology company focused on developing sustainable solutions for modern agriculture. Founded in 2018 and headquartered in Somerville, Massachusetts, the company specializes in biofertilizers that harness nitrogen-fixing microbes energized by renewable energy sources. This innovative approach allows Kula Bio to produce organic nitrogen fertilizers that aim to replace traditional synthetic fertilizers, promoting both agricultural productivity and environmental stewardship. By enhancing natural microbial processes, Kula Bio’s products enable farmers to improve crop yields while prioritizing sustainability and eco-friendliness in farming practices.

Heirloom

Pre Seed Round in 2021
Heirloom is a carbon capture company developing direct air capture technology that accelerates the natural absorption of carbon dioxide. Its approach uses a limestone-based process to increase CO2 uptake and stores the captured carbon permanently underground, powered by renewable energy. The company also applies carbon capture and utilization techniques to enhance natural CO2 removal. By offering a scalable, renewable-energy driven solution, Heirloom aims to help businesses meet sustainability goals with a cost-effective path to significant carbon removal.

Zap Energy

Series B in 2021
Zap Energy, Inc. is a Seattle-based company that specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. Founded in 2017, the company focuses on developing compact and scalable fusion technology that offers low-carbon, cost-effective, and flexible energy solutions. Unlike conventional fusion methods, Zap Energy's approach utilizes electric current to create magnetic fields that confine and compress plasma, enhancing the stability and efficiency of the fusion process. This innovative technology aims to provide sustainable energy while requiring less capital investment compared to traditional fusion systems.

Remora

Seed Round in 2021
Remora develops carbon capture technology tailored for trains and trucks. Their device extracts at least 80% of a semi-truck's carbon emissions directly from the tailpipe, purifies it, and sells the CO2 to end-users for long-term storage. This generates revenue for fleet operators, enabling reduced emissions and addressing national CO2 shortages.

Noya

Seed Round in 2021
Noya develops carbon capture technology that enables industrial facilities to remove CO2 from the atmosphere by retrofitting existing equipment. The company adds a non-toxic CO2 absorbing chemical blend to current cooling towers, allowing simultaneous cooling and carbon capture without major mechanical changes to the towers. The captured CO2 is then sold to companies that use it as a raw material, supporting other industries' climate initiatives. Noya's approach is aimed at accelerating the world’s transition toward a carbon-negative economy by providing a modular, retrofit-based solution that tackles emissions from industrial cooling processes.

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.

CarbonChain

Seed Round in 2020
CarbonChain is a developer of a carbon accounting platform designed to assist organizations in tracking, reporting, and reducing greenhouse gas emissions throughout their supply chains. The platform is particularly focused on high-emission industries such as metals, mining, agriculture, and manufacturing. By enabling companies to identify their emissions-related transactions, CarbonChain helps them take proactive measures to mitigate their environmental impact and adapt to increasing carbon prices. This capability not only aids firms in understanding the climate implications of their procurement choices but also supports their transition towards a net-zero economy.

CarbonChain

Seed Round in 2020
CarbonChain is a developer of a carbon accounting platform designed to assist organizations in tracking, reporting, and reducing greenhouse gas emissions throughout their supply chains. The platform is particularly focused on high-emission industries such as metals, mining, agriculture, and manufacturing. By enabling companies to identify their emissions-related transactions, CarbonChain helps them take proactive measures to mitigate their environmental impact and adapt to increasing carbon prices. This capability not only aids firms in understanding the climate implications of their procurement choices but also supports their transition towards a net-zero economy.

Mootral

Seed Round in 2020
Mootral is an AgriTech company founded in 2017, headquartered in Rolle, Switzerland, with a British presence. It develops natural feed supplements that reduce methane emissions from ruminants and aims to eliminate antibiotic use in livestock. The company supplies its solutions to farmers, agribusinesses, and governments, supporting sustainable and safe food production while addressing climate change and antimicrobial resistance.

Zap Energy

Series A in 2020
Zap Energy, Inc. is a Seattle-based company that specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. Founded in 2017, the company focuses on developing compact and scalable fusion technology that offers low-carbon, cost-effective, and flexible energy solutions. Unlike conventional fusion methods, Zap Energy's approach utilizes electric current to create magnetic fields that confine and compress plasma, enhancing the stability and efficiency of the fusion process. This innovative technology aims to provide sustainable energy while requiring less capital investment compared to traditional fusion systems.

Loam Bio

Seed Round in 2020
Loam Bio is a company focused on manufacturing microbial products designed to reduce atmospheric CO2 levels and enhance soil fertility. Founded in 2016 and based in Orange, Australia, the company is engaged in developing innovative technology that enables the inoculation of crops with symbiotic micro-organisms. This approach aims to improve agricultural sustainability by promoting healthier soils and more efficient carbon management.

Lilac Solutions

Series A in 2020
Lilac Solutions, Inc. is a mining technology company based in Oakland, California, specializing in lithium extraction technology. Founded in 2015, the company develops innovative solutions that utilize ion-exchange theory to absorb lithium from brine deposits. This technology includes ion exchange beads and continuous brine processing systems, which enable lithium producers to enhance project development, increase lithium recovery, and optimize operations. Lilac Solutions aims to support industries such as electric vehicles and renewable energy storage by providing methods that reduce both costs and environmental impact associated with lithium production.

Breathe Battery Technologies

Physics-based adaptive charging for software-defined batteries. We help the world’s leading automotive and consumer electronics brands deliver superior charging experiences. Our dream is that one day everyone will breathe clean air. That's why we make batteries better.

Mombak

Mombak is a carbon removal company based in Sao Paulo, Brazil, focused on reforestation of the Amazon. The team brings together experts in science, technology, forestry, and carbon markets to advance large-scale, nature-based climate solutions.

Rainmaker Technology

Rainmaker employs cutting-edge technology to generate rain, replenish water sources, and address drought challenges sustainably and effectively.
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