F4 Champions · Season 1
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F4 Champions · Season 1
You're researching investors. We want to see what you're building.
Join the open accelerator where your standing changes with what you ship. Enrollment closes August 2.
43 VC firms investing in climate & clean energy and semiconductors & hardware at the Series B stage.
F4 Fund tracks 43 VC firms that actively invest in climate & clean energy + semiconductors & hardware at the Series B stage, with check sizes ranging from $100K – $5000M (median: $8M – $8M). As of July 2026, and 95% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,544+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ 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 | 200 | Leads | Active | ~2 wks | Req'd |
| 2 | ▶ 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 |
| 3 | ▶ 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 |
| 4 | ▶ 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 | 32 | Both | Active | 3+ mo | Req'd |
| 5 | ▶ BMW i Ventures The technologies shaping the future of the automotive ecosystem are increasingly developed by startups, particularly in AI, advanced manufacturing, sustainability, and connected mobility. BMW i Ventures backs founders who see problems clearly, build without constraints, and move fast — and helps them win by connecting them to one of the world's leading automakers as a customer, development partner, and network. Mountain View | $500K – $10M | 67 | Both | Active | N/A | Open |
| 6 | ▶ 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 | 48 | Leads | Active | ~1 wk | Open |
| 7 | ▶ Seraphim Capital Space has a unique role in addressing the world's most pressing problems and represents a $trillion investment opportunity. We back visionary entrepreneurs transforming science fiction into science fact using space technology and space-based data to solve challenges in sustainability, connectivity, and digitalization at global scale. London | $250K – $25M | 30 | Both | Active | ~2 mo | Open |
| 8 | ▶ Koch Disruptive Technologies KDT backs principled entrepreneurs building disruptive technologies across connectivity, cybersecurity, healthcare, enterprise software, semiconductors, supply chain/manufacturing, energy, and fintech. KDT differentiates through Koch Labs® — connecting portfolio companies to Koch Industries' global commercial ecosystem and subject matter experts — enabling faster commercial deployment and scaling than traditional VC. Wichita, KS | $5M – $150M | 67 | Leads | Active | ~2 mo | Open |
| 9 | ▶ 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 |
| 10 | ▶ LG Technology Ventures LGV backs early-stage and growth-stage innovators with the strategic strength of LG Group's global resources. The fund invests in companies that stand to gain exceptional value from partnerships with LG's manufacturing, display, chemical, and energy business units, with a strong focus on AI, biotech, cleantech, and advanced materials. Silicon Valley | $1M – $30M | 73 | Both | Active | ~2 mo | Open |
| 11 | ▶ Lockheed Martin Ventures Invest in companies developing disruptive technologies in core defense business areas to build a pipeline that strengthens the defense industrial base. Over 60 portfolio companies have become Lockheed Martin suppliers, receiving $750M+ in contracts. Bethesda, MD | $500K – $5M | 32 | Both | Active | 3+ mo | Req'd |
| 12 | ▶ 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 | 31 | Leads | Active | ~2 wks | Open |
| 13 | ▶ Tesi Tesi (Finnish Industry Investment Ltd) is a state-owned investment company that helps Finland's most promising companies grow bigger. Tesi invests on market terms as a minority co-investor alongside private capital in Finnish startups, scale-ups, and industrial projects, as well as in VC and PE funds. Its mandate is both financial returns and economic impact — driving growth, jobs, and renewal in the Finnish economy. Helsinki | $1M – $30M | 31 | Follows | Active | 3+ mo | Open |
| 14 | ▶ 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 |
| 15 | ▶ 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 | 54 | Leads | Active | ~2 mo | Open |
| 16 | ▶ Entrepreneur First It matters not only which companies get started, but who starts them. EF identifies exceptional individual talent before a company, co-founder, or idea exists, and builds the company from Day Zero through cohort-based co-founder matching, an equity-free grant phase, and up to $250K in formation capital (via SAFE) once a team passes its Investment Committee. London | $250K – $5M | 78 | Leads | Active | N/A | Open |
| 17 | ▶ 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 | 52 | Both | Active | ~2 mo | Open |
| 18 | ▶ NATO Innovation Fund NIF invests in cutting-edge science and engineering startups that strengthen the defence, security, and resilience of NATO Allied nations. Backed by 24 sovereign governments, NIF provides deep tech founders with unprecedented access to government procurement markets across 24 countries, connectivity to ~90 NATO-affiliated test centres, and 6,000+ Allied scientists. NIF leads initial investments with up to €15M and maintains substantial follow-on reserves. Amsterdam | $1M – $16.5M | 26 | Leads | Active | 3+ mo | Open |
| 19 | ▶ 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 | 34 | Both | Active | ~1 wk | Open |
| 20 | ▶ 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 |
| 21 | ▶ 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 |
| 22 | ▶ 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 | N/A | N/A |
| 23 | ▶ IvyCap Ventures Back exceptional founding teams from premier Indian academic institutions (IIT, IIM) building scalable, technology-led businesses. Leverage the global alumni network for deal sourcing and post-investment support via the THRIVE platform. Mumbai | $1M – $10M | 45 | Leads | Active | N/A | Open |
| 24 | ▶ 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 | 46 | Both | Active | ~2 mo | Req'd |
| 25 | ▶ In-Q-Tel (IQT) Transformative national security solutions emerge from early-stage private-sector startups developing frontier technologies. IQT identifies, evaluates, and leverages innovations to accelerate government adoption while enhancing commercial success. As of May 2026, IQT is emphasizing mission investing through fewer larger bets in autonomy, contested logistics, critical infrastructure, and technologies that can move to mission use quickly. Washington | $250K – $3M | 30 | Leads | Active | ~1 mo | Open |
| 26 | ▶ 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 |
| 27 | ▶ 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 | 38 | Both | Active | ~2 wks | Open |
| 28 | ▶ XAnge European early-stage fund backing founders building durable technology businesses across deep tech, SaaS, AI, energy transition, digital finance, and healthcare. 5 Rue Feydeau, 75002 Paris, France | $1M – $15M | 13 | Leads | Active | N/A | N/A |
| 29 | ▶ 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 | 18 | Leads | Active | ~2 wks | Req'd |
| 30 | ▶ 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 |
| 31 | ▶ Yu Galaxy Conviction-driven venture capital backing visionary founders solving humanity's toughest problems. Focus on impact measurement: profitability and positive societal impact are inseparable. Invests from seed through Series B with follow-on capacity through exit. | $500K – $5M | 23 | Leads | Active | ~1 wk | Open |
| 32 | ▶ 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 | 25 | Leads | Active | ~2 mo | Open |
| 33 | ▶ 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 |
| 34 | ▶ Sutter Hill Ventures Build or back enduring technology companies solving hard technical problems in massive markets. SHV's origination model has them serve as Founding CEO of incubated companies — recruiting experts, handling operations, and letting technical founders focus purely on building. Identify large macro tech shifts (cloud, AI infrastructure, power for AI), recruit domain experts, build small focused teams until product-market fit, then scale rapidly with the full support of SHV's centralized operations team. Palo Alto | $500K – $50M | 19 | Leads | Active | ~2 mo | Req'd |
| 35 | ▶ 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 | 10 | Both | Active | ~2 wks | Req'd |
| 36 | ▶ 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 |
| 37 | ▶ Riot Ventures Modernize critical industries through deep technology. We are dedicated to backing ambitious, technically sophisticated founders solving hard problems in traditionally underserved sectors. We provide capital, operational guidance, board partnership, and network access—supporting companies from pre-seed through growth stages. | $500K – $100M | 26 | Leads | Active | ~2 wks | Open |
| 38 | ▶ Rosecliff Ventures Rosecliff's Frontier Technology Thesis focuses on AI, aerospace, defense, energy resilience, and space infrastructure. New York | $500K – $10M | 23 | Both | Active | ~2 mo | Open |
| 39 | ▶ 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 | 22 | Leads | Active | ~2 wks | Open |
| 40 | ▶ Main Sequence Main Sequence backs deep tech founders solving humanity-scale problems, especially companies connected to publicly funded research and spinouts that can turn breakthrough science into global businesses. Eveleigh, NSW, Australia | $250K – $500K | 14 | Leads | Active | ~1 mo | N/A |
| 41 | ▶ 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 |
| 42 | ▶ 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 |
| 43 | ▶ 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 | 17 | 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 43 VC firms that actively invest in climate & clean energy + semiconductors & hardware 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 + semiconductors & hardware investors is $8M – $8M, with a full range from $100K – $5000M. The distribution breaks down as: 1 firms in the <$500K range, 1 firms in the $500K-$1M range, 4 firms in the $1M-$2M range, 6 firms in the $2M-$5M range, 11 firms in the $5M-$10M range, 20 firms in the $10M+ range.
Among the 43 firms tracked, 95% lead or co-lead rounds, and 5% 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 + semiconductors & hardware investors combine domain expertise with an active portfolio in the space. Among these firms, 18% prefer warm introductions, and the average firm has 38 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.