Founded in 2010, EIT InnoEnergy is a leading European innovation engine focused on Sustainable Energy. It invests in early-stage climate tech and energy companies across Europe and the US, providing equity minority investments and added value services to de-risk projects.

Founded in 1994, the European Investment Fund operates as a venture capital and private equity firm specializing in incubation, direct, secondary indirect, and fund of funds investments. It focuses on disruptive early-stage technology enterprises and supports micro, small, and medium-sized enterprises across Europe, primarily at early stages. The fund invests between €0.25 million and €60 million per transaction, with a preference for investing €130 million into private equity and venture capital funds.

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.

Breakthrough Energy Ventures is an investor-led venture capital firm based in Kirkland, Washington, focused on climate and energy technology. It makes minority investments across seed, early, and later stages in companies delivering environmental services, climate technology, and cleantech solutions. The firm seeks scalable technologies that provide reliable, affordable power while reducing greenhouse gas emissions and supports innovations that address energy access, infrastructure, and transportation needs. Its mission emphasizes patient, impact-oriented investing to accelerate the transition to low-emission energy systems.

SOSV is a global venture capital firm that supports early-stage startups through active, founder-first development programs. Its flagship initiatives HAX and IndieBio provide facilities, engineering resources, services, and laboratory equipment to accelerate product development and prepare companies for subsequent funding rounds. SOSV focuses on deep technology across health, environmental, and cross-border software sectors, aiming to solve human and planetary health challenges. In addition to providing capital, the firm emphasizes intensive programmatic support to help portfolio companies move quickly from seed toward growth, including customer acquisition and scale. The firm operates globally with a bias toward startups targeting rapid international expansion, especially in Asia, and tends to back a small cohort of high-potential companies to accelerate their progress and attract leading investors.

Established in 2020, the European Innovation Council supports innovative startups and researchers with promising ideas, focusing on early-stage companies with positive environmental, social, or governance impacts. It co-invests alongside private investors.

Antler is a global venture capital firm based in Singapore that backs early-stage technology companies. It runs incubation programs and provides a global community of co-founders, access to talent, expert advisors, expansion support, and capital to help startups grow. The firm targets a broad range of sectors, including healthcare, finance, software, energy, consumer and B2B technologies, and operates through regional programs across Europe, the United States, the United Kingdom, Southeast Asia, India, Africa, and beyond.

The EBRD is an international financial institution founded in 1990 and headquartered in London that provides project financing and advisory services to support private sector development and transformation in emerging markets. It finances banks, industries, and businesses, supports new ventures and investments in existing companies, and helps privatize and restructure municipal services in publicly owned entities. Through its banking and treasury activities, it offers loans, equity and quasi-equity investments, guarantees, and equity funds for smaller enterprises, along with trade finance and loan syndication. It works with commercial partners to invest in private enterprises across sectors including energy, manufacturing, ICT, infrastructure, agribusiness, and real estate, across Europe, the Middle East and beyond, including a significant footprint in Central and Eastern Europe, the Baltics, and the Caucasus. It provides policy reform dialogue and advisory services to support market modernization, governance, and reform. It has invested over €130 billion in more than 5,000 projects.

Energy Impact Partners is a New York-based private investment firm focused on the energy transition. It backs entrepreneurs and established energy and industrial companies across venture, growth, credit and infrastructure, with an emphasis on energy efficiency, clean energy generation, smart grids, energy storage, distributed generation, and related digital and data-enabled services. The firm collaborates with partners to accelerate innovation in smart buildings, mobility, cybersecurity for energy systems, and comprehensive energy services, often pursuing co-investments. Since its founding in 2015, Energy Impact Partners has built a global footprint with offices in New York, San Francisco, Palm Beach, Cologne and London, enabling investments across North America and Europe. It seeks to align investments with environmental impact and scalable infrastructure, supporting the transition to sustainable energy and resilient energy systems.

Clean Energy Ventures is a Boston-based venture capital firm that invests in seed- and early-stage climate technology startups across North America, Europe and Israel. It focuses on advancing energy storage, grid connectivity, renewable energy production, clean transportation, and the water–energy nexus, supporting technologies and business models with scale potential to reduce greenhouse gas emissions. The firm backs companies that address climate change through market-driven approaches and seeks to accelerate commercialization of disruptive clean energy innovations.

Chevron Technology Ventures is the corporate venture capital arm of Chevron Corporation, focused on scouting, funding, testing, validating, and integrating emerging technologies into Chevron's core businesses. Founded in 1999 and based in Houston, with a presence in California, it identifies early-stage companies across the United States and pursues opportunities in areas such as industrial decarbonization, emerging mobility, energy decentralization, circular economy, water management, advanced materials, hydrogen infrastructure, sensors, and related digital technologies. The team collaborates with startups to develop and commercialize technologies that can enhance Chevron's operations, reduce costs, and improve performance, acting as an innovation partner that helps Chevron adopt new capabilities while aligning with the company's strategy.

Prelude Ventures is a San Francisco-based venture capital firm established in 2013, dedicated to investing in early-stage startups that aim to address climate change. The firm focuses on sectors such as advanced energy, food and agriculture, transportation, logistics, advanced materials, manufacturing, and advanced computing. By supporting innovative businesses in these areas, Prelude Ventures seeks to foster the development of the next generation of companies that can significantly impact environmental sustainability and contribute to a more sustainable future.

High-Tech Gründerfonds Management GmbH is a venture capital firm based in Bonn, Germany, specializing in early-stage investments in high-tech startups. Established in 2005, the firm focuses on technology-driven companies across various sectors, including information and communication technology, life sciences, healthcare, automation, and cleantech. HTGF typically invests in companies that have been operational for no more than one year, aiming to contribute up to €0.6 million in initial funding and up to €3 million in follow-on financing. The firm seeks a minority stake, generally around 15%, and provides a subordinated loan convertible into equity, with deferred interest for up to four years to support liquidity. With a total investment volume of approximately €895.5 million across three funds, HTGF has successfully supported over 500 startups and attracted more than €2 billion in follow-on investments from external sources. The firm's investors include notable public and private entities, underscoring its role as a key player in fostering innovation and growth within the German startup ecosystem.

SFC Capital is a United Kingdom-based venture capital firm founded in 2012 that makes early-stage investments in UK startups, including pre-seed and seed rounds. It backs companies across sectors such as software, technology, e-commerce, consumer, enterprise, green tech, medical technology, and hospitality, providing capital plus strategic guidance to support growth and product development. The firm operates a model that combines an angel network with seed funds to back SEIS- and EIS-qualifying businesses, aiming to offer exposure to a diversified portfolio while delivering hands-on support to portfolio companies.

Established in 2001, Sustainable Development Technology Canada (SDTC) is a Canadian organization that funds and supports innovative cleantech projects. It focuses on moving groundbreaking technologies to market, creating jobs, driving economic growth, and promoting environmental benefits. SDTC operates independently but collaborates with various stakeholders from private industry, academia, and governments.

Katapult is an impact investing firm and accelerator focused on supporting early-stage impact tech startups, funds, and projects that align with sustainable development. The organization aims to mainstream impact investing and steward exponential technologies to address global challenges, with a focus on Ocean health, climate stability, and sustainable food systems, and targeted engagement with Africa. It operates through investment vehicles including accelerators and funds, Katapult Future Fest, and Katapult Foundation, and seeks to mobilize high-net-worth individuals, family offices, and foundations by offering co-investment opportunities and education. The approach emphasizes responsible stewardship of technology, multi-stakeholder decision making, and active support for investees to maximize positive outcomes. It positions itself to set standards at the intersection of impact and technology.

Congruent Ventures is a venture capital firm based in Oakland and San Francisco that specializes in early-stage investments in climate technology and sustainable solutions across North America. The firm backs technology companies in mobility and urbanization, energy transition, food and agriculture, and sustainable production and consumption, with opportunities spanning hardware, software, and services that can scale while reducing energy and resource use. Founded in 2017, Congruent Ventures emphasizes positive environmental impact alongside growth and operates as an exempt registered adviser.

GAIA Impact Fund is a venture capital firm that specializes in renewable energy, focusing on building long-term partnerships with startups in Sub-Saharan Africa and South-East Asia. With a strong environmental and social focus, the firm supports businesses that provide sustainable and affordable energy to local communities. GAIA Impact Fund also works to promote technological innovations and business models that facilitate the widespread adoption of renewable energy in regions where energy mixes are highly carbonized.

BP Ventures is a venture capital firm established in 2007, investing in private technology companies to accelerate innovation across the energy sector. With over $400 million invested across more than 40 entities and over 200 co-investors, BP Ventures focuses on Oil & Gas Value Chain, Low Carbon Technologies & Fuels, and Energy Usage & Trading, delivering near-term business value while backing breakthrough innovations for a sustainable future.

Alumni Ventures Group is a venture capital firm based in Manchester, New Hampshire, established in 2013. It targets individual accredited investors who previously had limited access to venture capital by enabling alumni from top entrepreneurial schools to invest together in ventures led by fellow alumni. The firm backs companies with an alumni connection and an institutional lead investor with sector expertise. It offers focused funds that provide accredited investors access to a diversified venture portfolio by type, sector, stage, and geography. The organization engages in seed, early-stage, and late-stage pre-IPO investments across technology, consumer, financial services, health care, life sciences, and other sectors.

Founded in 2019, MCJ is a venture capital firm based in Boston, Massachusetts. The company focuses on investing in technology startups that drive industrial transformation and infrastructure resilience, aiming to make industries cleaner, more profitable, and more resilient.

Khosla Ventures is a California-based venture capital firm founded in 2004 by Vinod Khosla. The firm backs entrepreneurs with venture assistance, strategic guidance, and capital, focusing on bold, early-stage technology companies. It invests across sectors including AI, climate and sustainability, enterprise software, consumer technologies, fintech, digital health, medtech and diagnostics, therapeutics, and frontier technologies. Based in Menlo Park, the firm manages several funds to support startups across stages, prioritizing ventures that address large markets and have potential for significant social and economic impact.

AENU is an impact venture capital firm based in Berlin that backs early-stage climate-tech and social impact companies across Europe. The firm pursues systemic transformation in venture capital toward impact, accessibility, and stakeholder alignment, aiming for long-term investments that solve the climate crisis and advance social equality. Its focus spans climate and ecosystems, energy, food and agriculture, resources, buildings, mobility, enterprise solutions, and equality and education initiatives.

Founded in 2005, Demeter Partners is a Paris-based private equity firm specializing in investments that drive the ecological transition. It focuses on seed to late-stage companies and infrastructure projects across Europe, with a particular emphasis on France. The firm invests between €0.5 million and €30 million, typically taking minority stakes and seeking board seats.

Helen Ventures is the corporate venture capital arm of Helen, founded in 2019 and headquartered in Helsinki, Finland. It invests from its balance sheet in early and growth‑stage startups across Europe and Israel, with a focus on energy, e-mobility, circular economy, decarbonization, and digital solutions for the energy sector. The firm targets renewable energy technology, smart energy solutions, distributed energy systems, and related digital platforms, seeking to accelerate the adoption of transformative technologies in collaboration with customers and industry experts. By supporting startups that advance sustainable energy and related digital capabilities, Helen Ventures aims to help create new energy era solutions accessible to customers and partners.

Energy & Environment Investment, Inc. is a Tokyo-based impact investment firm founded in 2006, specializing in the clean technology sector. As Japan's first venture capital firm dedicated to this area, it aims to support promising ventures by providing both financial resources and strategic guidance. The firm is comprised of experienced professionals who have a strong background in founding and managing companies within the venture capital landscape. By focusing on the environment and energy sectors, Energy & Environment Investment seeks to foster innovation and sustainable practices in clean technology, contributing to the broader goals of environmental sustainability and energy efficiency.

SET Ventures is an Amsterdam-based venture capital firm founded in 2007 that invests in European energy and renewable sector companies across early to growth stages. It backs digital technology-enabled solutions aimed at carbon-free energy systems, including energy generation, distribution and storage, energy efficiency, and smart energy applications in buildings, industry, mobility, and infrastructure. The firm targets investments in technology-enabled clean energy and sustainability initiatives, often with a focus on smart grid, energy storage, and EV/green building applications, and seeks to support portfolio companies with strategic guidance, including board participation. Typical check sizes range from approximately €0.5 million to €6 million per company over the life of participation. SET Ventures concentrates on Europe and prioritizes companies that combine software and hardware components to create scalable energy solutions.

Powerhouse is an incubator, accelerator, and venture capital firm based in Oakland, California. Founded in 2013 as SfunCube, it specializes in seed-stage investments and programs focused on intelligent energy technologies and clean energy software. The firm supports startups through a six-month program and provides seed capital in exchange for a small equity stake, with typical investments ranging from tens of thousands to a few hundred thousand dollars. Target areas include solar, energy storage, demand response, grid integration, and related software and business model innovations that accelerate decarbonization of energy and mobility systems. By combining funding with mentoring and access to a broad network of corporate partners, Powerhouse aims to help early-stage companies scale sustainably.

Climate Capital is a San Francisco-based venture capital firm founded in 2018 that backs companies spanning adaptation, alternative proteins, agriculture, carbon-related initiatives, energy, web3, transportation, and real estate, with a focus on supporting enterprises that directly or indirectly reduce global greenhouse gas emissions.

Fifth Wall is a venture capital firm focused on technology for the global real estate and built environment. Founded in 2016, it backs startups and growth-stage companies that develop real estate technology across sectors such as retail, office, residential, industrial and hospitality, as well as related climate and energy technologies. The firm aims to connect real estate owners and operators with entrepreneurial teams to enable strategic collaborations and transformational investments. It emphasizes solutions that improve efficiency, sustainability and tenant experiences, and maintains a broad network of strategic partners and investors from the real estate industry worldwide.

Founded in 2015, FJ Labs is a New York-based venture capital firm focusing on stage-agnostic investments in marketplaces and consumer-facing startups. Their investment range varies from $50,000 to $5,000,000, typically at seed or series A stages.

MassVentures is a Massachusetts-based venture capital firm that provides seed and early-stage funding to high-growth startups in the Massachusetts innovation economy, helping concepts move from idea to commercialization. Founded in 1978 as a quasi-public corporation by the Legislature of the Commonwealth, it is governed by an independent board and managed by experienced venture investors. The firm focuses on information technology, healthcare, cybersecurity, e-commerce, mobile, manufacturing, and robotics sectors in Massachusetts and operates accelerator programs to support portfolio companies. MassVentures leverages the state's entrepreneurial ecosystem, educated workforce, and centers of innovation to back early-stage ventures.

Giant Ventures is an impact investment firm founded in 2019 and based in London, United Kingdom. It backs purpose-driven founders who are building companies that address meaningful problems and create positive change. The firm focuses on investments in climate, health and wellness, and inclusive capitalism, aiming to support ventures that generate measurable social or environmental impact alongside financial returns.

Green Angel Ventures, founded in 2013 and based in London, England, is a venture capital firm that focuses on early-stage investments in climate innovation. The company specializes in identifying and supporting inventions that address climate change across various sectors, including energy, carbon removal, nature-based solutions, food and agriculture, transport, industry, and recycling. By evaluating impactful projects and providing necessary funding, Green Angel Ventures aims to foster the growth of innovative solutions that can effectively combat climate challenges on a global scale.

Overture VC is a venture capital firm based in Los Angeles, founded in 2021, that concentrates on early-stage climate-tech startups. It provides investment capital and practical government strategies to help portfolio companies navigate the regulatory landscape and access public sector support. By assisting founders in winning government support and addressing regulatory complexity, Overture VC aims to accelerate the development and deployment of climate solutions. The firm focuses on ventures that pursue a sustainable future and seeks to empower founders to scale their innovations by aligning policy, funding, and market pathways.

Founded in 1953, BDC Capital is a Canadian investment firm specializing in growth and expansion financing. It focuses on information technology, technology, energy, cleantech, and healthcare sectors across Canada.

GS Futures is the venture arm of GS Global, based in San Mateo, California. It makes early-stage, strategic investments in companies across climate technology, energy transition technology, construction and real estate technology, and consumer technology, with a geographic focus on the United States, Canada and Europe and an emphasis on retail, sustainability and energy sectors.

Founded in Rome, Italy in 2015, CDP Venture Capital is a venture capital firm dedicated to fostering innovation and economic growth. It invests in early-stage and growth companies across various sectors, with a focus on Italian startups.

Octopus Ventures is a London-based venture capital firm that backs technology-enabled startups across Europe, with a bias toward the UK. It invests across stages, from idea/concept through seed, Series A/B to growth, typically taking lead rounds and board seats. The firm targets sectors including health, fintech, deep tech, consumer, and B2B software, as well as climate and digital health, and provides hands-on support to help portfolio companies scale, not only capital. Annual activity amounts to several hundred million pounds, with equity investments ranging from relatively small rounds to tens of millions. It seeks to partner with founders for multi-year growth, and has backed notable companies such as ManyPets, Cazoo, Depop, Elvie, and WaveOptics. Operations span London and New York, aided by a network of partners in the US and Asia.

Established in 2020 by Amazon, the Climate Pledge Fund is dedicated to investing in innovative companies that focus on sustainable technologies and services. With an initial commitment of $2 billion, it aims to facilitate a transition to a low-carbon economy.

Copenhagen Infrastructure Partners is a multinational fund management company specializing in investments in energy, renewables, and water infrastructure across Europe, Asia and North America. The firm manages a family of infrastructure funds, including CIP II, CIP III, CIP IV and CIP V, all aimed at long-term, core infrastructure exposures with a focus on renewable energy and related assets. Its team brings extensive experience in regulated infrastructure, project development, and energy projects, with leaders who have held senior roles at DONG Energy. CIP pursues durable, long-horizon investments in assets such as offshore and onshore wind, solar, electricity transmission and energy storage, as well as other clean infrastructure opportunities.

Hy24 is an investment platform dedicated to clean hydrogen infrastructure, aimed at reducing global carbon emissions. The platform focuses on funding early-stage and strategic projects that are essential for global decarbonization efforts. By investing in infrastructure critical to realizing hydrogen's potential as a low-carbon energy source, Hy24 supports initiatives that yield significant positive returns and align with global climate goals. Through its targeted investments, Hy24 plays a crucial role in advancing the development of hydrogen technologies and promoting sustainable energy solutions.

Speedinvest is a venture capital firm based in Vienna, with offices in Berlin, Paris, London, Munich, and San Francisco, that focuses on early-stage technology investments across Europe, including Central and Eastern Europe. The firm backs seed to early growth rounds in areas including deep tech, fintech, health, industrial tech, marketplaces, consumer tech, software-as-a-service, and network effects, with a platform philosophy and hands-on support via an in-house Platform+ team that provides growth marketing, human resources, US business development, and networking assistance from day one. Typical investments range from a few hundred thousand euros up to about three million euros, with a preference for minority stakes up to around 20% and for taking co-entrepreneurial operational roles for six months to a year. Speedinvest was founded in 2011 and is known for combining capital with hands-on operational support to help portfolio companies scale.

Union Square Ventures is a New York-based venture capital firm founded in 2003 that invests across stages from seed to growth in internet-enabled companies. It concentrates on the applications layer of the web, internet services, and mobile platforms that build large networks and benefit from network effects. The firm seeks opportunities where information technology enables scalable business models in sectors such as media, marketing, fintech, climate tech, cryptonetworks, healthcare, and IT-enabled services. Typical initial investments start around $1 million, with larger commitments in select Series A rounds and total checks often reaching up to $20 million per company. It aims to lead investments and maintains active involvement with founders. Primary focus markets include New York, San Francisco, London, and Berlin, reflecting a global footprint with network-driven growth.

Statkraft Ventures is a venture capital investor focused on the energy transition and climate tech. Based in Germany, it partners with early- and growth-stage start-ups in Europe and North America, providing capital and expertise to accelerate sustainable energy solutions.

Rubio Impact Ventures is an Amsterdam-based venture capital firm focused on impact-driven investments in the Netherlands. Founded in 2014, it targets early and growth-stage opportunities across sectors including healthcare, information technology, artificial intelligence, energy, financial services, education technology, food technology, climate technology, agriculture technology, and both consumer and business-to-business models. The firm typically makes equity investments between €0.5 million and €8 million and emphasizes ventures that deliver measurable social and environmental benefits, such as improvements in nutrition, education and employment opportunities, and sustainable development within Dutch markets.

Founded in Berlin, Germany in 2020, Vireo Ventures is a venture capital firm focusing on seed and pre-seed stage investments. It supports European tech startups driving electrification and digitalization, taking a long-term view and providing extensive support to its portfolio companies.

Extantia Capital is a climate-first venture capital firm, based in Berlin, Germany, founded in 2020. It concentrates on supporting deep decarbonisation technologies and mission-driven ventures aiming to accelerate the transition away from fossil fuels. It seeks to back companies capable of delivering substantial CO2e reductions, targeting scalable business models with high impact. Extantia collaborates with scientists, investors, and business leaders to advance climate solutions and align funding with measurable environmental outcomes. The firm has over €100 million in assets under management. It operates two investment approaches: Extantia Flagship, which backs scalable decarbonisation technology companies, and Extantia Allstars, which invests in climate-focused venture capital funds. The emphasis is on selecting emerging leaders with the potential to drive large-scale emissions reductions and commercial viability.

NGP Energy Capital Management is a private equity and venture capital firm focusing on energy investments. Founded in 1988 and headquartered in Irving, Texas, with offices in Houston, London, Santa Fe, and Stamford, it manages a family of energy-focused funds. The firm invests across the energy value chain, including oil and gas exploration and production, midstream, oilfield services, energy efficiency, alternative energy, natural gas gathering and processing, and power technology, as well as related areas such as water resources, food and agriculture, and coastal protection. It targets a range of capital events from seed and startup funding to growth equity, middle-market and later-stage buyouts, and may co-invest in direct oil and gas property interests alongside portfolio companies. Typical investments span from a few million to several hundred million dollars, with a North American focus and selective international opportunities. The firm aims to partner with management teams to support growth and help navigate the challenges of the energy industry.

ArcTern Ventures is a Toronto-based venture capital firm that provides early-stage capital to cleantech startups. It partners with MaRS to support breakthrough ideas in clean energy, energy efficiency and storage, circular economy, advanced manufacturing and materials, mobility, and food systems. The firm evaluates opportunities globally, with a focus on North America and Europe, and pursues ESG and climate-related impact investments. Through multiple funds, including Fund III, ArcTern targets technology-enabled solutions across sectors such as renewable energy, sustainable mobility, circular economy, industrial decarbonization, and agriculture technology.