# Top 50 CleanTech Startup Investors in May 2026 ## Third Sphere - Type: VC Fund - Location: Brooklyn, New York, United States - Relevant deals: 11 - Stages: Seed, Pre-Seed, Convertible Note - Focus: Software, Real Estate, Transportation Early-stage fund focused on rapid, scalable climate action and targeting outsized impact and outsized returns. ## Chalmers Ventures AB - Type: VC Fund - Location: Göteborg, Vastra Gotaland, Sweden - Relevant deals: 11 - Stages: Pre-Seed, Seed - Focus: Software, Energy, Health Care We are a leading tech investor & venture builder in the Nordics. Taking deep tech from lab to market.WELCOMEINVESTMENTS ## Kleiner Perkins - Type: VC Fund - Location: Menlo Park, California, United States - Relevant deals: 8 - Stages: Series B, Series A, Series C - Focus: Software, Health Care, Information Technology Kleiner Perkins is an American venture capital firm headquartered on Sand Hill Road in Menlo Park in Silicon Valley. ## MIG Capital - Type: VC Fund - Location: München, Bayern, Germany - Relevant deals: 8 - Stages: Series A, Series B - Focus: Biotechnology, Health Care, Pharmaceutical Zusammen gestalten wir die Unternehmen von morgen. ## Khosla Ventures - Type: VC Fund - Location: Menlo Park, California, United States - Relevant deals: 8 - Stages: Series A, Series B, Seed - Focus: Software, Health Care, Artificial Intelligence Khosla Ventures invests in companies that are bold, early and impactful. The firm was started in 2004 by Vinod Khosla, co-founder of Sun Microsystems, to provide venture assistance to entrepreneurs. Headquartered in Menlo Park, Calif., Khosla Ventures invests in a range of areas including AI, climate, sustainability, enterprise, consumer, fintech,digital health, medtech and diagnostics, therapeutics and frontier technology. ## Antler - Type: VC Fund - Location: Singapore, Central Region, Singapore - Relevant deals: 7 - Stages: Pre-Seed, Seed, Series A - Focus: Software, Information Technology, SaaS Build your next company with Antler, a global day zero investor enabling exceptional founders to start great companies, from the very beginning. Apply now! ## Breakthrough Energy Ventures - Type: VC Fund - Location: Paris, Ile-de-France, France - Relevant deals: 7 - Stages: Series A, Series B - Focus: Energy, Renewable Energy, Manufacturing Focused on developing and deploying the critical climate solutions our world needs to reach net-zero emissions by 2050. ## Collaborative Fund - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 7 - Stages: Seed, Series A - Focus: Food and Beverage, Health Care, Software Collab Fund is a leading source of capital for entrepreneurs pushing the world forward. ## Par Equity - Type: VC Fund - Location: Edinburgh, Edinburgh, City of, United Kingdom - Relevant deals: 7 - Stages: Seed, Series A - Focus: Software, Information Technology, Computer Founded in 2008, Par Equity is a venture capital firm that backs the most innovative, high growth technology companies in the North of the UK. Based in Edinburgh, Par invests across Northern England, Northern Ireland and Scotland. ## Valo Ventures - Type: VC Fund - Location: Palo Alto, California, United States - Relevant deals: 7 - Stages: Series A, Series B, Seed - Focus: SaaS, Software, Manufacturing Valo Ventures is a thesis-driven venture capital firm investing in North America and Europe. Our mission is "investing for a brighter future" and we do this by focusing on four catalyzing megatrends: climate change, circular economy, autonomy and empowered people. We identify and support entrepreneurs who are applying digital technologiesto create long term economic, environmental and social value. Learn more at www.valoventures.org. ## Energy Impact Partners - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 7 - Stages: Series A, Series B, Series C - Focus: Software, Energy, Renewable Energy Energy Impact Partners (EIP) is a collaborative strategic investment firm that invests in companies optimizing energy consumption and improving sustainable energy generation. Through close collaboration with its strategic investor base, EIP seeks to bring the best companies, buying power and vision in the industry to bear on the emerging energy landscape. ## Speedinvest - Type: VC Fund - Location: Vienna, Wien, Austria - Relevant deals: 7 - Stages: Seed, Series A, Pre-Seed - Focus: Software, FinTech, Financial Services Speedinvest is one of Europe’s most active early-stage investors, with more than €1bn AUM, 40 investors, and offices in Berlin, London, Munich, Paris, Vienna and San Francisco. Your success is our priority, so we don’t just send some money and "check in" at board meetings. Our mission is to empower you with game-changing support throughevery stage of your journey. Our focused investment teams know your industry inside and out. Their Deep Tech, Fintech, Industrial Tech, Network Effects, Digital Health and Subscriptions experience, know-how and deep networks are yours from day one. You also have full access to our in-house Platform+ team of operational experts who can provide tailored growth marketing, people (HR), US business development, and networking support throughout every stage of your journey. ## Parkwalk Advisors - Type: VC Fund - Location: London, England, United Kingdom - Relevant deals: 6 - Stages: Seed, Series A, Series B - Focus: Biotechnology, Health Care, Software Parkwalk is a London-based fund management firm. Parkwalk invests in UK technology companies that have IP backing and freedom to operate, generally spun out of UK universities. Their funds seek to generate capital gains for their investors, enhanced by the attractive tax relief provided by EIS. Parkwalk entered this investment sector in 2009,anticipating a wave of tax-efficient incentives launched by the UK Government to stimulate innovative emerging technology companies and thereby help drive economic growth.Parkwalk utilises academic, technology transfer, venture capital and personal networks developed over many years to gain access to the highest calibre deal-flow. In 2017 Parkwalk joined forces with IP Group plc, a leading intellectual property commercialisation company that is listed on the Main Market of the London Stock Exchange under the ticker symbol IPO. As at March 2019 the combined group has net assets of £1.2bn. ## Chrysalix Venture Capital - Type: VC Fund - Location: Vancouver, British Columbia, Canada - Relevant deals: 6 - Stages: Series B, Series A - Focus: Energy, Manufacturing, CleanTech Leading global venture capital fund that invests in resource intensive industries across North America and Europe. ## Active Impact Investments - Type: VC Fund - Location: North Vancouver, British Columbia, Canada - Relevant deals: 6 - Stages: Seed, Series A, Pre-Seed - Focus: Software, SaaS, CleanTech We support environmental resiliency through profitable investment. We provide capital and talent to accelerate the growth of early-stage climate tech ventures catalyzing the transition from finite to infinite sources of energy, food, water & products. ## Climate Capital - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 6 - Stages: Seed, Pre-Seed, Series A - Focus: Sustainability, Manufacturing, Biotechnology Climate Capital is an investment firm that supports companies that directly or indirectly reduce global greenhouse gas emissions. ## Shell Ventures - Type: VC Fund - Location: Rijswijk, Zuid-Holland, The Netherlands - Relevant deals: 6 - Stages: Series A, Series B - Focus: Energy, Renewable Energy, Software Shell Ventures invests in companies to speed up development and deployment of new technologies which complement our business. ## Contrarian Ventures - Type: VC Fund - Location: Vilnius, Vilniaus Apskritis, Lithuania - Relevant deals: 5 - Stages: Seed, Series A, Pre-Seed - Focus: Software, Information Technology, Energy We are a hands-on, community-focused and founders vetted early-stage sustainable energy transition focused VC in Europe & Israel ## Clean Energy Venture Group - Type: VC Fund - Location: Brookline, Massachusetts, United States - Relevant deals: 5 - Stages: Series A, Seed - Focus: Energy, Renewable Energy, Manufacturing CEVG is an angel investor collective that invest in and mentors early-stage cleantech and climatetech startups across North America. ## 468 Capital - Type: VC Fund - Relevant deals: 5 - Stages: Seed, Series A, Pre-Seed - Focus: Software, Artificial Intelligence, Information Technology 468 Capital is a Berlin and San Francisco based technology investment firm. We support leading software, AI and internet growth companies across multiple investment stages. ## Clean Energy Ventures - Type: VC Fund - Location: Boston, Massachusetts, United States - Relevant deals: 5 - Stages: Series A, Seed, Convertible Note - Focus: Energy, Manufacturing, Renewable Energy Clean Energy Ventures invests in scalable early-stage climate tech startups and clean energy technologies addressing global climate change. ## SaaS Ventures - Type: VC Fund - Location: Washington, District of Columbia, United States - Relevant deals: 5 - Stages: Seed, Series A, Pre-Seed - Focus: Software, Information Technology, SaaS We are enterprise software experts. We look to co-invest with strong leads, bringing our network of coinvestors and next round investors as well as enterprise software expertise to add value. We see ourselves as partners who can fill out a round quickly and be a positive influence, and non-competitive as we don't lead or take significantstakes in our portfolio companies. We generally write a small check into rounds of $750k-$3M that are mostly full, being low pain-in-the-ass to entrepreneurs compared to relatively high value add. Having been entrepreneurs, we know that's the most important part.While we'll invest anywhere in the US, we love "second tier markets" that can still support major exits but attract relatively less venture funding: Chicago, Toronto, DC, Baltimore, Atlanta, etc etc! ## Business Finland - Type: VC Fund - Location: Helsinki, Southern Finland, Finland - Relevant deals: 5 - Stages: Seed, Grant - Focus: Software, Information Technology, SaaS Business Finland finances business R&D projects and public research projects at universities, research institutes and universities of applied sciences. Read more about R&D and business funding. ## Innovacorp - Type: VC Fund - Location: Halifax, Nova Scotia, Canada - Relevant deals: 5 - Stages: Seed, Grant - Focus: Software, Information Technology, Health Care Innovacorp is an early-stage venture capital firm that helps knowledge-based startups commercialize their technologies in the global marketplace. It invests in early stage Nova Scotia entrepreneurs, combining venture capital with business mentoring and incubation facilities. Innovacorp was established in 1995 and based in Halifax, Canada. ## DCVC - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 5 - Stages: Seed, Series A, Series B - Focus: Software, Artificial Intelligence, Health Care We are deep tech venture capital. ## Powerhouse Ventures - Type: VC Fund - Location: Oakland, California, United States - Relevant deals: 5 - Stages: Seed, Series A, Pre-Seed - Focus: Software, Energy, Solar Powerhouse Ventures backs entrepreneurs building the digital infrastructure for rapid decarbonization. ## Sustainable Ocean Alliance - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 5 - Stages: Seed, Pre-Seed - Focus: Sustainability, CleanTech, Marine Technology SOA develops leaders, cultivates ideas, and accelerates solutions to the biggest problems facing our ocean through the Leadership and Accelerator programs ## SVG Ventures - Type: VC Fund - Location: Los Gatos, California, United States - Relevant deals: 5 - Stages: Pre-Seed, Seed - Focus: AgTech, Agriculture, Farming We work with leading corporations, startups, universities, and growers to solve the biggest challenges facing the agtech and foodtech industries. ## Stout Street Capital - Type: VC Fund - Location: Denver, Colorado, United States - Relevant deals: 5 - Stages: Seed, Series A - Focus: Software, SaaS, Enterprise Software Colorado Venture capital firm with a focus on early-stage technology companies innovating in software, fin tech, advanced materials, robotics, and AI. ## Blackhorn Ventures - Type: VC Fund - Location: Boulder, Colorado, United States - Relevant deals: 5 - Stages: Seed, Series A, Series B - Focus: Software, Information Technology, Artificial Intelligence Blackhorn Ventures is a collective of experts that invests in companies that are redefining resource efficiency in industrial sectors. ## Social Capital - Type: VC Fund - Location: Palo Alto, California, United States - Relevant deals: 5 - Stages: Seed, Series A, Series B - Focus: Software, FinTech, SaaS At Social Capital, we make big bets on transformational ideas, technology, and people. ## City Light Capital - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 4 - Stages: Seed, Series A, Series B - Focus: Health Care, Software, Wellness City Light is a venture capital firm that invest in impactful companies in the areas of education, safety and care, and the environment. ## Foundation for Technological Innovation (FIT) - Type: VC Fund - Location: Lausanne, Vaud, Switzerland - Relevant deals: 4 - Stages: Debt Financing, Grant, Seed - Focus: Health Care, Biotechnology, Information Technology The Foundation for Technological Innovation (FIT) has been helping startups since 1994, encourages entrepreneurship & supports innovation. ## Spero Ventures - Type: VC Fund - Location: Redwood City, California, United States - Relevant deals: 4 - Stages: Series A, Seed - Focus: Software, Artificial Intelligence, Education Spero Ventures makes venture investments in the things that make life worth living - wellbeing; sustainability; learning, work, and play. ## Central Texas Angel Network - Type: VC Fund - Location: Austin, Texas, United States - Relevant deals: 4 - Stages: Seed, Series A - Focus: Software, Health Care, Biotechnology The Central Texas Angel Network (CTAN) is dedicated to providing quality early-stage investment opportunities for accredited Central Texas angel investors and to assisting entrepreneurs and early-stage growth companies by being a quality source of funding, information, networking, advisors and educational resources. ## Demeter Partners - Type: VC Fund - Location: Paris, Ile-de-France, France - Relevant deals: 4 - Stages: Series A, Private Equity - Focus: Manufacturing, Energy, Electronics Demeter is a major player in venture capital and private equity for the ecological transition. We invest from €1m to €30m to support companies at all stages of their development: innovative startups, high growth SMEs and infrastructure projects. ## CDP Venture Capital - Type: VC Fund - Location: Rome, Lazio, Italy - Relevant deals: 4 - Stages: Seed, Series A - Focus: Software, Health Care, Information Technology CDP Venture Capital Sgr - National Innovation Fund aims to make venture capital a cornerstone of the country's economic development and innovation, creating the conditions for an overall and sustainable growth of the venture capital ecosystem. ## Astanor Ventures - Type: VC Fund - Location: Brussels, Brussels Hoofdstedelijk Gewest, Belgium - Relevant deals: 4 - Stages: Series A, Seed, Series B - Focus: Agriculture, Food and Beverage, Biotechnology We help the ambitious build a food system that is nourishing, regenerative, scalable, trusted and produces delicious food for all. ## Biz Stone - Type: Angel - Location: San Francisco, California, United States - Relevant deals: 4 - Stages: Seed, Series A, Pre-Seed - Focus: Software, Messaging, Mobile Biz is a co-founder of Twitter, Medium, and Jelly. A progenitor of social media, and early Google employee, Biz has been developing large scale systems that serve the global conversation for twenty years. As an investor, Biz has backed Square, Pinterest, Slack when it was called Speck, Nest, Intercom and Beyond Meat (where he remains on the boardas Chair of the Nominating and Governance Committee), among others. In 2016, Stone's Jelly, a "human in the loop" AI search service, was acquired by Pinterest. After the sale, Twitter requested Biz return full time to lead the company's strategic vision, brand, and internal culture objectives alongside co-founder Jack Dorsey. Biz has been recognized as INC Magazine Entrepreneur of the Decade and one of TIME's 100 Most Influential People in the World. He is also an author, filmmaker and Fellow at both Oxford University and Berkeley. ## Right Side Capital Management - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 4 - Stages: Seed, Pre-Seed, Convertible Note - Focus: Software, SaaS, Health Care Right Side Capital Management is a venture capital firm that helps startups build their company. It invests exclusively in the pre-seed round of technology startups and makes 75-100 investment per year. The firms prefers to invest in diversified technology sectors such as the internet and cloud companies.RSCM was established in 2010 and is basedin San Francisco, California. ## Horizons Ventures - Type: VC Fund - Location: Hong Kong, Hong Kong Island, Hong Kong - Relevant deals: 4 - Stages: Series A, Series B, Seed - Focus: Biotechnology, Artificial Intelligence, Software Investing in the deep science and technology that can propel humanity towards a radically better future. ## Export Development Canada - Type: VC Fund - Location: Ottawa, Ontario, Canada - Relevant deals: 4 - Stages: Series B, Series A - Focus: Software, Renewable Energy, Manufacturing Export Development Canada (EDC) is a Crown corporation dedicated to assisting Canadian businesses of all sizes in achieving global success. It provides them with the tools they need to grow their business with confidence, including trade knowledge, financial solutions, equity, insurance, and connections. ## Social Impact Capital - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 4 - Stages: Seed, Pre-Seed - Focus: Biotechnology, Information Technology, Nanotechnology Social Impact Capital specializes in investments that can deliver top decile returns in addition to a positive social impact. We focus on the "essentials of human need" — energy, water, food, health, environment, education, housing, access to capital, and social justice.We're a finance-first social impact venture capital firm,focusing on early-stage investment (Seed, Series A). We invest in high-growth companies where the driver of the business model is a social good.A top decile early-stage VC, we are a generalist firm with specialist due diligence capabilities: we leverage a broad network of advisors and venture partners with specific domain expertise.For more information about our firm, please contact hello@impcapital.com. ## Asymmetry Ventures - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 4 - Stages: Seed, Pre-Seed, Series A - Focus: Software, Health Care, Biotechnology Asymmetry Ventures invests in scalable early-stage companies with exceptional defensibility. ## BoxGroup - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 4 - Stages: Seed, Series A, Series B - Focus: Software, Health Care, Internet BoxGroup is an early stage investment fund focused on technology companies. Contact Us: hello@boxgroup.com ## SE Ventures - Type: VC Fund - Location: Menlo Park, California, United States - Relevant deals: 4 - Stages: Series B, Series A - Focus: Energy, Manufacturing, Internet of Things Innovation at the Edge program provides funding, support, networks and resources to innovative startups and entrepreneurs to bring their bold ideas to life. ## Superangel - Type: VC Fund - Location: Tallinn, Harjumaa, Estonia - Relevant deals: 4 - Stages: Seed, Pre-Seed, Series A - Focus: Artificial Intelligence, Software, FinTech Early-stage investments from entrepreneurs to entrepreneurs. Our companies include Bolt, Veriff, Fortumo and many more. 10x@superangel.io ## Sky Ocean Ventures - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 4 - Stages: Seed, Grant - Focus: CleanTech, Sustainability, Packaging Services Sky Ocean Ventures is a bold new creation that will support breakthrough thinking and invest in promising new ideas that will help turn off the plastics tap.They ## Business Development Bank of Canada - Type: VC Fund - Location: Montréal, Quebec, Canada - Relevant deals: 4 - Stages: Series A, Seed - Focus: Software, Information Technology, Manufacturing We are BDC, the bank for Canadian entrepreneurs. We support small and medium-sized businesses in all industries and at every stage of growth with money and advice. We are the Business Development Bank of Canada. ## Cassa Depositi e Prestiti - Type: VC Fund - Location: Rome, Lazio, Italy - Relevant deals: 4 - Stages: Pre-Seed, Seed - Focus: CleanTech, InsurTech, B2B The Cassa depositi e prestiti Group is the national promotional institution that has supported the Italian economy since 1850 # About Shizune Shizune.co is an investor database. Core features: - 48,091 startup investors (angels, VCs, accelerators, and others) - Email, phone, LinkedIn (for intros), socials, and other contact data - Updated daily from public funding news - CSV and Excel export The User can access the full database FOR FREE after signing up: shizune.co