78 VC firms investing in climate & clean energy at the Series B stage.
F4 Fund tracks 78 VC firms that actively invest in climate & clean energy at the Series B stage, with check sizes ranging from $25K – $5000M (median: $7.5M – $7.5M). As of June 2026, and 96% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,356+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ S2G Ventures Invested at the seams of sector transition. S2G identifies opportunities at critical intersections of food & agriculture, oceans, and energy. The firm backs market-based solutions that deliver both economic returns and systems-level change across interconnected, commodity-driven, policy-sensitive sectors. S2G explicitly rejects siloed investing, instead seeking companies operating within Resource Efficiency, Mass Digitalization, Agile Supply Chains, and Conscious Customer themes. Chicago | $2M – $100M | 41 | Leads | Active | ~2 wks | Open |
| 2 | ▶ Clocktower Technology Ventures Financial services represents the largest venture opportunity with disproportionately small VC allocation. We invest in companies reinventing financial services with operator teams combining domain expertise and execution excellence. Santa Monica | $500K – $20M | 104 | Both | Active | ~2 mo | Open |
| 3 | ▶ Semillero Partners Invest in sustainable food and beverage companies while supporting underrepresented and diverse entrepreneurs. We provide capital combined with operational expertise in distribution, operations, food safety, marketing, and logistics. We believe industrial agriculture is a major environmental threat and are committed to building a more sustainable and equitable food system. San Juan | $250K – $5M | 10 | Both | Active | ~1 mo | Open |
| 4 | ▶ Uncork Capital We back bold founders at the earliest stages with capital and deep operational support. High-conviction, long-term partnerships with founders solving real problems. Founder-market fit above all else. Speed, transparency, and staying committed through difficult times. | $1.5M – $3M | 197 | Leads | Active | ~2 wks | Req'd |
| 5 | ▶ Serena Capital We back bold entrepreneurs who think big and are committed to becoming the next major tech players. We invest from pre-seed to series A with strong operational support, focusing on technology-driven solutions across AI, climate tech, fintech, SaaS, and impact-driven sectors. | $100K – $15M | 113 | Leads | Active | ~2 wks | Open |
| 6 | ▶ Fifth Wall We invest in breakthrough technologies that make the built world more efficient, resilient, and sustainable. By combining capital with access to 115+ real estate owner-operator LPs, we help portfolio companies scale rapidly across vast existing asset bases. Los Angeles | $2M – $50M | 23 | Leads | Active | ~2 wks | Open |
| 7 | ▶ Initialized Capital Passion and vision matter more than pedigree. We seek founders with grit, audacity, and a spark of rebellion—regardless of background. We invest early, before success is inevitable, and support founders from 0-to-1 through Series A. San Francisco | $250K – $2M | 184 | Leads | Active | ~2 wks | Open |
| 8 | ▶ Cultivian Sandbox Ventures Building next-generation food and agriculture technology companies that commercialize solutions for sustainable production, equitable distribution, and healthy consumption. Partners with strategic investors to drive systemic impact in food systems. Chicago | $1M – $10M | 21 | Both | Active | ~2 mo | Open |
| 9 | ▶ Baruch Future Ventures (BFV) Climate restoration through identification and scaling of 'n of 1' technology opportunities combining innovative tech, viable business models, and visionary leadership. Focus on achieving $1B+ valuations in <10 years with 'scale and speed' mentality. Menlo Park | $250K – $10M | 36 | Leads | Active | ~2 mo | Open |
| 10 | ▶ Acre Venture Partners Driving positive, lasting change in food and agriculture creates exceptional financial outcomes. Impact and return aren't trade-offs—they're intertwined. Both are essential. We invest in technologies and companies addressing human health, planetary well-being, responsible production, and climate solutions. Santa Monica | $500K – $5M | 29 | Leads | Active | ~1 mo | Req'd |
| 11 | ▶ Alpaca VC We invest in technology companies that reshape foundational industries – real estate, commerce, manufacturing, energy, logistics, and agriculture. Founded by entrepreneurs for entrepreneurs, we bring operational guidance, strategic insights from proprietary Field Studies research, and downstream capital access. We believe the startup journey is better together, providing hands-on support to exceptional founders building enduring companies. New York | $500K – $5M | 72 | Both | Active | ~2 wks | Open |
| 12 | ▶ Refactor Capital The most enduring companies are created by founders willing to commercialize real science and scale real systems. We focus on hard tech at the intersection of computation and physical sciences—aerospace, biotech, energy, materials—where technical execution is the moat. Burlingame, CA | $1M – $2M | 47 | Leads | Active | ~1 wk | Open |
| 13 | ▶ Energy Impact Partners Technology and capital solutions for the global energy transition. We partner with entrepreneurs to build and scale innovative companies that power a better energy future, supported by collaborations with utilities and industrial incumbents. New York | $2M – $20M | 26 | Leads | Active | ~1 mo | Req'd |
| 14 | ▶ DBL Partners Top-tier venture capital returns alongside meaningful social, environmental, and economic impact — the Double Bottom Line — with no tradeoff. DBL invests in mission-driven founders across clean energy, agriculture, nature-based solutions, health, economic opportunity, mobility, and the space/Earth nexus. San Francisco | $2M – $50M | 46 | Leads | Active | ~2 mo | — |
| 15 | ▶ Breakthrough Energy Ventures Innovation is essential to solving climate change while maintaining prosperity. Superior performance and affordability are prerequisites for global scale. We provide patient capital and technical expertise to help breakthrough climate technologies achieve commercial viability. United States | $500K – $50M | 43 | Leads | Active | 3+ mo | Open |
| 16 | ▶ Toba Capital Partner with exceptional founders building technology companies with long-term growth potential capable of fundamentally shifting markets for the common good. Provide capital, operational expertise, board participation, and network access to support founder vision and company building. Los Angeles & Newport Beach, CA | $500K – $10M | 42 | Leads | Active | ~1 mo | Open |
| 17 | ▶ Closed Loop Partners The circular economy—where products are designed, manufactured, sold, refurbished, and recycled in closed loops—represents the future of sustainable economic value creation. We invest across R&D to commercial scale in foundational materials industries, providing not just capital but integrated support through our innovation center research and operating group execution. New York | $1M – $20M | 22 | Leads | Active | ~2 mo | Open |
| 18 | ▶ Suffolk Technologies The $12 trillion built environment sector is ripe for digital transformation. Suffolk Technologies deploys capital, resources, and networks to help founders scale technologies in construction, architecture, engineering, real estate, and infrastructure. Uniquely positioned as the venture arm of Suffolk Construction, they provide operational test beds, jobsite access, and deep domain expertise that pure financial investors cannot. Boston | $150K – $10M | 55 | Leads | Active | ~2 mo | Open |
| 19 | ▶ Giant Ventures The biggest companies of the century will be built solving the world's most pressing problems. We champion ambitious founders using technology to reshape civilization around climate, health, and inclusive capitalism. London | $500K – $15M | 35 | Both | Active | ~2 mo | Open |
| 20 | ▶ Tola Capital Every industry will be transformed by software. Tola practices hypothesis-based investing targeting the 'enterprise scaffolding' of AI — domain-specific models, AI/ML tooling, AI SaaS applications, AI governance, and AI security — rather than foundational AI infrastructure. They back companies driving long-term, transformational change in large markets. Seattle | $1M – $15M | 52 | Leads | Active | ~1 mo | Open |
| 21 | ▶ AgFunder Progress in food, agriculture, and human health lags other sectors due to structural constraints. We invest in deep technologies that remove these bottlenecks at scale—whether AI, biology, robotics, or materials science. We're not intimidated by threats to the status quo. Silicon Valley | $500K – $5M | 34 | Both | Active | ~1 mo | Open |
| 22 | ▶ Cleveland Avenue Global venture capital firm investing in lifestyle consumer brands and technology companies that positively disrupt large and growing markets. Great investments require deep industry expertise, hands-on operational support, and access to strategic partners. Chicago | $1M – $50M | 68 | Leads | Active | ~1 mo | Req'd |
| 23 | ▶ Playground Global Where breakthrough science turns into world-changing companies. We back scientists and engineers at the earliest stages—pre-formation and pre-product—at the intersection of AI, engineered biology, next-gen compute, and hard science. If it's too early for everyone else, it's probably right for us. Palo Alto | $1M – $20M | 31 | Both | Active | 3+ mo | Req'd |
| 24 | ▶ Benhamou Global Ventures BGV backs hands-on, cross-border enterprise AI startups operating under the Enterprise 5.0 framework — companies that combine intelligent machines with human ingenuity to drive leapfrog productivity improvements. They focus on vertical AI (industry-specific, proprietary data) and horizontal agentic platforms (cross-functional automation), with a strong preference for immigrant founders pursuing US go-to-market strategies from France, Israel, and India. Menlo Park | $2M – $10M | 46 | Leads | Active | ~2 mo | Open |
| 25 | ▶ OMERS Ventures Back ambitious founders building disruptive early-stage technology companies. We provide not just capital but access to OMERS' multi-asset institutional platform. Our permanent pension backing gives us patient, long-duration capital unconstrained by traditional 10-year fund cycles. Toronto | $1M – $25M | 30 | Both | Active | ~1 mo | Req'd |
| 26 | ▶ Mundi Ventures Mundi backs bold, purpose-driven founders building technology companies at the intersection of deep tech and critical global challenges. Core thesis: Europe has world-class talent and ecosystem but suffers from a scale-up funding gap at growth stages. Kembara fund (€750M) bridges this by providing Series B/C growth capital to European deep tech and climate champions. Madrid | $1M – $40M | 53 | Leads | Active | ~2 mo | Open |
| 27 | ▶ AirTree Ventures Big things start small. We invest at seed stage and see potential where others don't. We believe in your vision for your company's future, not as it exists today. We think in decades, not days, committing to walk the entire journey with founders to build iconic companies. We share Antipodean ingenuity with the world. Sydney | $250K – $20M | 64 | Leads | Active | ~2 wks | Req'd |
| 28 | ▶ Energy Foundry Earth Foundry backs founders transforming critical industries, including energy, mobility, waste, water, agriculture, and infrastructure, using hardware, software, services, and material science innovations. Chicago | $1M – $5M | 23 | Leads | Active | ~2 mo | Req'd |
| 29 | ▶ B Capital Group Back extraordinary entrepreneurs throughout the company-building lifecycle from seed to IPO. Combine venture capital expertise with BCG management consulting to accelerate value creation. Support founders with capital, strategic guidance, and access to global networks. San Francisco | $250K – $50M | 34 | Leads | Active | ~2 wks | Req'd |
| 30 | ▶ Airbus Ventures Back deeptech entrepreneurs with deep technical expertise, integrity-driven vision, and complex problem-solving capabilities working at intersections of space, autonomous mobility, advanced materials, quantum computing, and climate technology. Use aerospace systems lens to identify dual-use deep-science technologies with extraordinary technical leadership and first-principles engineering expertise capable of unlocking entirely new economies. Menlo Park | $100K – $10M | 22 | Both | Active | ~2 wks | Open |
| 31 | ▶ TELUS Pollinator Fund for Good We refuse to compromise between doing good and delivering strong financial and commercial returns. Portfolio companies gain access to TELUS's commercial networks, data-rich platforms, and deep expertise across agriculture, health, and connectivity giving them a unique edge as they scale. Vancouver | $1M – $20M | 12 | Both | Active | ~1 mo | Open |
| 32 | ▶ Galaxy Interactive Gaming-born technologies—GPUs, real-time rendering, virtual economies—now power AI, spatial computing, and blockchain. We invest in the foundational infrastructure enabling the convergence of digital and physical worlds. New York | $500K – $10M | 21 | Leads | Active | ~2 wks | Req'd |
| 33 | ▶ MassMutual Ventures Build category-defining technology businesses that deliver strong investment returns while addressing pressing business challenges. Leverage Fortune 500 parent (MassMutual) assets including real estate portfolios, renewable energy assets, and capital networks. Boston | $2M – $10M | 21 | Both | Active | ~1 mo | Open |
| 34 | ▶ Collab Fund Investing at the intersection of for-profit and for-good. Companies that make the world better AND deliver strong financial returns. The Villain Test ensures both impact and profit alignment. New York | $500K – $10M | 44 | Leads | Active | ~2 wks | Open |
| 35 | ▶ HCVC We back founders on a mission to industrialize scientific and technological progress. Hardtech startups solve difficult technological problems using interdisciplinary mixes of technology and engineering. We provide patient, supportive capital and community to help founders navigate R&D cycles and build technically defensible products. Paris | $100K – $2.5M | 30 | Leads | Active | ~2 mo | Open |
| 36 | ▶ Intel Capital Scalable, defensible innovation at the intersection of software, hardware, and intelligence. Champion founders driving the next wave of technological innovation across Cloud, Devices, Frontier, and Silicon domains. Breakthrough technologies emerge from convergence of multiple domains. Santa Clara, California | $1M – $50M | 29 | Leads | Active | ~2 wks | Open |
| 37 | ▶ Prelude Ventures Climate is the biggest challenge of our lifetime and the greatest business opportunity of the coming decades. We back visionaries accelerating climate innovation that will reshape our global economy for the betterment of people and planet. The most successful companies are born from a vision for a better future and the ability of that vision to create large, lasting positive impact. We invest in frontier technologies addressing climate across seven sectors: Built Environment, Carbon Management, Compute, Energy, Food & Agriculture, Manufacturing & Industrials, and Mobility. The best ideas come from everywhere—we operate where many venture firms can't or won't. San Francisco | $100K – $5M | 51 | Both | Active | ~2 mo | Open |
| 38 | ▶ Vamos Ventures Invest in visionary founders from Latinx and diverse backgrounds building disruptive tech solutions. Capitalize on demographic trends and founder quality in systematically underestimated segments. Create alpha through early-mover advantage in overlooked founder networks. Los Angeles | $500K – $2.5M | 18 | Leads | Active | ~1 mo | Open |
| 39 | ▶ How Women Invest Women founders represent an overlooked asset class that delivers superior returns. Women-founded companies earn 26% more for investors, yet receive only 2% of venture funding. We invest exclusively in women-founded companies, providing capital, network access, and operational support to drive transformative change. San Francisco | $250K – $5M | 27 | Leads | Active | ~1 mo | Req'd |
| 40 | ▶ Prologis Ventures We invest in bold ideas transforming supply chain and logistics. With deep industry expertise and Prologis' global network, we partner with companies redefining the logistics landscape. Denver | $2M – $20M | 17 | Leads | Active | ~2 mo | Open |
| 41 | ▶ F-Prime Capital Partner with visionary founders to turn bold ambitions into world-changing breakthroughs in life sciences, technology, healthtech, and crypto. Distinctive 'technical-risk-yes, regulatory-risk-no' filter ensures clear pathways to success. Cambridge | $250K – $15M | 26 | Leads | Active | ~1 wk | Open |
| 42 | ▶ Impact America Fund Tech-enabled businesses built for and by people in marginalized communities create new frameworks of ownership and opportunity. Traditional VCs miss billion-dollar markets in overlooked communities. Oakland | $250K – $3M | 26 | Leads | Active | ~1 mo | Req'd |
| 43 | ▶ Vanedge Capital Deep technology and hard tech company investing at inflection points. Partner with technical founders building infrastructure-level solutions for global scale. Founded 2010 on belief that next generation of transformative companies require deep technical expertise, not just capital. Vancouver | $1M – $15M | 42 | Both | Active | ~2 wks | Open |
| 44 | ▶ Footprint Coalition Global environmental challenges cannot be solved by established mega-corporations alone, but rather require breakthrough innovation from a diverse set of new companies. We combine venture capital with integrated storytelling and media to create culture-defining content around climate solutions and sustainable technology adoption. Los Angeles | $250K – $15M | 32 | Leads | Active | ~1 mo | Req'd |
| 45 | ▶ Maersk Growth Maersk Growth invests in startups solving supply chain challenges through digitization, decentralization, and decarbonization. The fund combines traditional VC capital with strategic integration through venture clienting, where portfolio companies become commercial partners within Maersk's ecosystem. Copenhagen | $2M – $10M | 8 | Both | Active | ~2 mo | Req'd |
| 46 | ▶ UP Partners The next two decades will see dramatic changes in mobility across ground, air, sea, and space. We invest in entrepreneurs building frontier technologies that make movement cleaner, faster, safer, and lower-cost, leveraging our extensive relationships with global companies. Santa Monica | $1M – $10M | 31 | Both | Active | ~1 wk | Open |
| 47 | ▶ Alumni Ventures We democratize venture capital by providing individual accredited investors with professional-grade access to elite venture opportunities. We leverage our massive 850,000+ community network and 11,000+ investors to create unique value for founders, sourcing and diligencing deals alongside top-tier VCs (a16z, Sequoia, Khosla) without leading rounds. Our network is our competitive advantage—it compounds value for all stakeholders. Manchester, NH | $250K – $5M | 58 | Follows | Active | ~2 wks | Open |
| 48 | ▶ Horizons Ventures Invest in deep science and disruptive technology companies that solve fundamental human problems—inequality, health, climate adaptation. We back founders with vision, instinct, and drive to scale impact. Hong Kong | $1M – $25M | 38 | Leads | Active | ~1 mo | Open |
| 49 | ▶ Gobi Partners Bespoke Capital for Enduring Impact. Gobi invests where capital alone is insufficient — requiring deep local relationships, sustained engagement, and informed judgment across Asia's diverse and complex markets. They focus on technology companies solving structural inefficiencies across underserved Asian markets, from fintech to deep tech to sustainable infrastructure. Kuala Lumpur | $1M – $50M | 37 | Leads | Active | — | — |
| 50 | ▶ Neotribe Ventures Breakthrough technologies that stretch the imagination — deep tech with the potential to create new product categories. We bring company-building skills and operating expertise to help founders find product-market fit. Menlo Park | $1M – $80M | 28 | Leads | Active | ~1 mo | Req'd |
| 51 | ▶ Khosla Ventures Technology-based economic disruption of large markets through black swan investments. We seek founders with domain expertise and unreasonable conviction to build billion-dollar companies solving the world's largest problems. Menlo Park | $500K – $50M | 35 | Both | Active | ~2 wks | Open |
| 52 | ▶ Golden Gate Empower audacious founders who challenge norms and leverage technology to transform industries. We believe in first-time founders with scrappy outsider mentality and narrow niche focus. Silicon Valley expertise combined with deep emerging market knowledge across three continents. Singapore | $25K – $10M | 33 | Leads | Active | ~2 wks | Req'd |
| 53 | ▶ Icehouse Ventures Back exceptional Kiwi founders building globally transformative companies, from day one to IPO. New Zealand founders represent a significantly undervalued asset class, and Icehouse provides capital plus an ecosystem of 3,000+ investors and deep operational support. Auckland | $100K – $10M | 33 | Leads | Active | ~2 mo | Open |
| 54 | ▶ Valor Capital Group Greatest opportunities come from serving unmet needs of the middle class in emerging markets. We bridge US and Latin American markets, providing institutional capital, intellectual capital flow, and geo arbitrage exit opportunities. New York | $500K – $10M | 24 | Leads | Active | ~2 wks | Open |
| 55 | ▶ Dalus Capital Back purposeful entrepreneurs building scalable technology solutions for significant Latin American problems, with emphasis on inclusion, climate innovation, and business productivity while generating positive impact and strong returns. Monterrey | $500K – $5M | 29 | Both | Active | ~1 mo | — |
| 56 | ▶ Blackbird Back wild hearts with the wildest ideas from the very beginning. Invest in companies, not rounds — following exceptional founders from pre-seed through all subsequent stages. Focused on ANZ founders building globally ambitious companies across any sector. Sydney | $150K – $60M | 43 | Leads | Active | ~2 wks | Open |
| 57 | ▶ SpeedInvest Backs globally ambitious technology companies from pre-seed and seed through selected growth rounds using specialist EMEA sector teams and a platform model for capital, customers, talent, follow-on investors, and operational support. Vienna | $250K – $30M | 49 | Leads | Active | — | Open |
| 58 | ▶ Mubadala Mubadala partners with world-class companies and institutions to drive transformational growth across strategic sectors and geographies. We believe in long-term value creation through patient capital, operational expertise, and global partnerships aligned with Abu Dhabi's economic diversification. Abu Dhabi | $5M – $5000M | 41 | Both | Active | ~2 mo | Req'd |
| 59 | ▶ Snatched Ventures Backs DeepTech startups at the intersection of AI/ML, materials science, advanced manufacturing, biotechnology, optics, electronics, robotics, and blockchain — driving sustainable operational transformation across six thematics: transportation & logistics, energy & water, food & agriculture, fashion & beauty, precision medicine & aging, and retail & e-commerce. Requires commercial traction (min $1M revenue, 50%+ gross margins) and a minimum 10% ownership stake. San Francisco | $500K – $5M | 25 | Leads | Active | — | — |
| 60 | ▶ Fitch Ventures Fitch Ventures invests in innovative technologies serving institutional credit, risk management, and enterprise clients. The dual mandate focuses on generating financial returns while feeding innovation back into Fitch Group's product stack, often using investments as an M&A pipeline. New York | $2M – $5M | 8 | Both | Active | ~1 mo | Open |
| 61 | ▶ Felicis Ventures Back founders building iconic companies that transcend boundaries. We invest directly in their growth to make them unbreakable. Founded on principle that luck isn't made, it's engineered. Founders are our customer, not LPs. We always vote shares with founders and provide 1% non-dilutive founder development capital alongside every first check. Menlo Park | $500K – $15M | 29 | Both | Active | ~1 wk | Open |
| 62 | ▶ Lux Capital Turn sci-fi into sci-fact by backing founders solving the most vexing puzzles facing humanity. We believe in counter-conventional solutions and contrarian positions in deep technology. We champion companies working at the intersection of breakthrough science and transformational technology, led by visionary founders who are equal parts mad scientist and business mastermind. New York | $100K – $100M | 17 | Leads | Active | ~2 wks | Req'd |
| 63 | ▶ Rosecliff Ventures We seek to create positive economic impact and long-term value by providing lifetime support to companies from seed through late-stage equity and credit. We differentiate through deep Wall Street expertise, strategic LP networks, and innovative financing vehicles. New York | $500K – $10M | 22 | Both | Active | ~2 mo | Open |
| 64 | ▶ Emerson Collective Emerson Collective invests in entrepreneurs and innovators driven by purpose, seeking consequential companies that deliver both generational impact and venture-scale returns. The firm targets sectors where biggest market opportunities meet meaningful impact levers: energy & environment, digital health, fintech, education, work, and media. Palo Alto | $10M – $700M | 16 | Both | Active | ~1 mo | Req'd |
| 65 | ▶ Liquid 2 Champions exceptional founders to build lasting companies through experience, community, and capital. Generalist technology investor whose edge is network depth — Joe Montana's unmatched rolodex and 800+ portfolio company network enables introductions that most seed funds cannot provide. San Francisco | $250K – $5M | 26 | Follows | Active | ~2 wks | Open |
| 66 | ▶ Zigg Capital Real estate has been stagnant for 50 years despite massive innovation in other industries. Shifting demographics, transportation changes, and evolving preferences are forcing modernization. We back visionary entrepreneurs building solutions across construction, property management, residential finance, and retail that will improve quality of life, work, and community. New York | $500K – $10M | 26 | Both | Active | ~2 wks | Open |
| 67 | ▶ White Star Capital Technology companies are becoming intertwined with the global economy more so than ever before. The most compelling founders build businesses through a broader world view. White Star Capital backs globally ambitious entrepreneurs at Series A, B, and Seed stages across North America, Europe, and Asia, helping them scale internationally through deep local presence on three continents. London | $1M – $25M | 41 | Leads | Active | ~1 mo | Open |
| 68 | ▶ Trousdale Ventures We invest in mission-driven companies that dare to tackle impossible challenges, striving to transform industries and create lasting societal impact. We seek founders with audacity to dream big, resilience to persevere, and potential to build forever companies that shape human history. Los Angeles | $5M – $25M | 30 | Leads | Active | ~1 mo | Open |
| 69 | ▶ Pillar VC We invest in technical breakthroughs that overcome the world's greatest challenges. We partner at inception with technically brilliant dreamers who see past impossible to inevitable. We evaluate scientific opportunities through both commercial potential and human impact lenses. Boston | $100K – $10M | 22 | Leads | Active | ~2 mo | Open |
| 70 | ▶ Not Boring Capital Invest in companies with compelling stories to tell. We couple capital deployment with media storytelling through the Not Boring newsletter, creating a unique flywheel that amplifies both company and fund narrative. New York | $100K – $2M | 9 | Both | Active | ~2 wks | Req'd |
| 71 | ▶ Unless Unless catalyzes the New Industrial Revolution by backing visionary companies transforming industrial systems across supply chains, manufacturing, energy, and transportation. The firm uses a perpetual capital structure to support long-duration industrial transformation through equity, debt, and buyouts. Boulder, CO | $5M – $25M | 12 | Both | Active | ~2 mo | Open |
| 72 | ▶ Deep33 Backs frontier deep tech companies solving physical infrastructure bottlenecks of the AI supercycle, especially compute, energy, quantum, AI infrastructure, robotics, and autonomous manufacturing across the U.S.-Israel corridor. New York | $5M – $15M | 9 | Both | Active | ~1 mo | Open |
| 73 | ▶ Peak XV Partners Outlier founders and ideas shape the future of humanity. We back ambitious founders building category-defining companies that create significant impact while generating returns that support non-profit and educational causes. Bangalore | $500K – $100M | 18 | Leads | Active | ~2 wks | Open |
| 74 | ▶ Gaingels Equity of access and representation in venture capital delivers positive returns. Diverse and underrepresented (including LGBTQ+) leaders of high-growth companies deserve capital access. When these founders succeed, they influence ecosystems and open doors for historically excluded groups. New York | $200K – $500K | 29 | Follows | Active | ~2 wks | Open |
| 75 | ▶ Cathay Innovation Startups positioned as transformation partners with Fortune 500 corporates create the most impactful solutions. We believe the next generation of market leaders will emerge through collaborative innovation between startups and incumbent enterprises, supported by global expertise and capital. Paris | $5M – $100M | 16 | Both | Active | ~1 mo | Req'd |
| 76 | ▶ Evolution Venture Capital Partners Culture-Tech companies that disrupt and define how we live, work, play, and interact with the world every day. We invest in passionate founders building transformative products that change cultural behaviors. New York | $500K – $6M | 28 | Leads | Active | ~1 wk | Open |
| 77 | ▶ Gigafund Back the world's most ambitious and transformative entrepreneurs capable of building world-defining companies over 20+ years. Invest in founders with independent thought and first-principles vision to solve humanity's biggest problems across all sectors and geographies. Austin | $1M – $500M | 18 | Leads | Active | 3+ mo | Open |
| 78 | ▶ VU Venture Partners Invest in early-stage tech companies addressing world's largest market opportunities and solving humanity's biggest challenges. Leverage global distributed team to source, evaluate, and support transformational founders. San Francisco | $100K – $1M | 16 | Both | Active | ~2 mo | Open |
Investors on this page also frequently invest in these sectors
What other stages do these firms also invest in?
What other sectors do these firms also invest in?
F4 Fund tracks 78 VC firms that actively invest in climate & clean energy at the Series B stage. These firms are ranked using a composite score that weighs data completeness (30%), portfolio depth (30%), investment recency (25%), and stage alignment (15%).
Based on F4's analysis, the median check size for series b climate & clean energy investors is $7.5M – $7.5M, with a full range from $25K – $5000M. The distribution breaks down as: 1 firms in the <$500K range, 1 firms in the $500K-$1M range, 6 firms in the $1M-$2M range, 14 firms in the $2M-$5M range, 24 firms in the $5M-$10M range, 32 firms in the $10M+ range.
Among the 78 firms tracked, 96% lead or co-lead rounds, and 4% typically follow. Founders seeking a lead investor should filter for firms marked "Leads" or "Both" in the rankings table above. Lead investors typically set deal terms and anchor the round.
The best series b climate & clean energy investors combine domain expertise with an active portfolio in the space. Among these firms, 28% prefer warm introductions, and the average firm has 37 portfolio companies. Look for firms whose check size matches your raise, whose stage preference aligns with yours, and who have a track record of supporting companies in your sector through multiple growth phases.
Firm profiles are continuously updated through F4's research pipeline, which combines LLM-powered web research, portfolio analysis, and transcript extraction. The ranking data refreshes every 12 hours. Editorial analysis is reviewed weekly. Individual firm profiles are re-researched on a 30-day cycle or when new information surfaces.