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.
38 VC firms investing in security & cybersecurity and climate & clean energy at the Series B stage.
F4 Fund tracks 38 VC firms that actively invest in security & cybersecurity + climate & clean energy at the Series B stage, with check sizes ranging from $100K – $200M (median: $8M – $8M). As of July 2026, and 92% 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 | ▶ Chevron Technology Ventures CTV brings external innovation to Chevron and Chevron to external innovation. The fund operates 'inside-out' — starting with internal Chevron technology problems and finding startup solutions — across both oil and gas operations and lower carbon technologies. CTV invests in companies where Chevron can serve as both investor and early customer, de-risking technology through operational trials. Houston | $2M – $20M | 55 | Follows | Active | 3+ mo | Open |
| 2 | ▶ 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 |
| 3 | ▶ Salesforce Ventures Enterprise technology is the sole focus. Patient capital with an evergreen model — Salesforce is the sole LP with no fund lifecycle pressure, enabling investing across market cycles. AI is the defining platform shift of our era: from model infrastructure to AI applications to robotics and agents. Strategic value beyond capital: unmatched access to the Salesforce enterprise ecosystem and Fortune 500 network for customer introductions, early product feedback, and go-to-market acceleration. San Francisco | $1M – $50M | 66 | Both | Active | ~1 mo | Open |
| 4 | ▶ Energize Capital Energize Capital backs asset-light technologies—primarily software and services—that advance the digitization and decarbonization of critical industries including energy, climate, infrastructure, and industrials. They seek solutions enabling the energy transition at scale, from early commercialization through profitable growth. Chicago | $10M – $30M | 37 | Leads | Active | ~2 mo | Open |
| 5 | ▶ 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 |
| 6 | ▶ 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 |
| 7 | ▶ 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 |
| 8 | ▶ Illuminate Financial Illuminate invests in companies solving mission-critical problems for financial institutions through fintech and enterprise software innovation. With deep access to tier-1 financial institution networks and specialized domain expertise, the firm creates unique value for portfolio companies through institutional customer access, operational guidance, and strategic partnerships. London | $1M – $8M | 31 | Leads | Active | ~1 mo | Open |
| 9 | ▶ 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 | 31 | Both | Active | ~1 mo | Req'd |
| 10 | ▶ 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 |
| 11 | ▶ 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 | 44 | Leads | Active | ~1 mo | Open |
| 12 | ▶ Northzone Category-defining entrepreneurs building fundamental shifts that upend entire industries. Focus on disruptive business models in energy transition, healthcare, AI, and consumer. Thesis values human relationships and founder-centric partnerships over financial metrics alone. London | $1M – $40M | 39 | Leads | Active | ~2 wks | Req'd |
| 13 | ▶ 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 |
| 14 | ▶ 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 |
| 15 | ▶ 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 | 23 | Both | Active | ~1 mo | Open |
| 16 | ▶ 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 |
| 17 | ▶ 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 |
| 18 | ▶ Seventure Partners Seventure Partners identifies and backs innovative European companies in Life Sciences and Digital Technologies at all stages from seed to pre-IPO, serving as the lead investor and active board-level partner. The firm is a global pioneer in microbiome investing and has built a 25+ year track record of 150+ exits and 30 IPOs. Institutional backing from Natixis Investment Managers/Groupe BPCE provides unique co-investment and network access. Paris | $500K – $10M | 41 | Leads | Active | ~2 mo | Open |
| 19 | ▶ 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 |
| 20 | ▶ Innovating Capital Technology can have a highly disruptive impact on society. We back founders on the forefront of innovation with clear vision towards positive change, leveraging domain expertise to ensure value creation. Founder-first approach with operational support. New York | $250K – $5M | 38 | Leads | Active | ~1 mo | Open |
| 21 | ▶ 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 |
| 22 | ▶ 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 |
| 23 | ▶ 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 |
| 24 | ▶ 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 |
| 25 | ▶ Addition Backs founders with a proven track record building large, defensible, technology-enabled businesses, deploying roughly one-third of capital at early stage and two-thirds at growth stage with fast, single-decision-maker conviction. New York | $5M – $200M | 20 | Leads | Active | N/A | Req'd |
| 26 | ▶ 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 |
| 27 | ▶ 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 |
| 28 | ▶ 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 |
| 29 | ▶ 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 | 41 | Leads | Active | ~2 mo | Open |
| 30 | ▶ 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 | 28 | Both | Active | ~2 wks | Open |
| 31 | ▶ 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 | 45 | Leads | Active | ~1 mo | Open |
| 32 | ▶ 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 |
| 33 | ▶ 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 |
| 34 | ▶ Revaia Revaia champions sustainable leaders in technology and innovation, partnering with mission-driven, growth-stage founders who bridge private growth financing through to public markets, with sustainability and governance built into the business rather than bolted on. Paris | $10M – $35M | 15 | Leads | Active | N/A | Req'd |
| 35 | ▶ CDP Venture Capital CDP Venture Capital is a national venture platform that combines direct investing, fund-of-funds activity, accelerators, and technology transfer to strengthen Italy's innovation economy in strategic sectors. Rome | $250K – $10M | 14 | Both | Active | N/A | N/A |
| 36 | ▶ 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 |
| 37 | ▶ 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 |
| 38 | ▶ 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 |
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?
Firms that frequently co-invest with investors on this page
F4 Fund tracks 38 VC firms that actively invest in security & cybersecurity + 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 security & cybersecurity + climate & clean energy investors is $8M – $8M, with a full range from $100K – $200M. The distribution breaks down as: 2 firms in the <$500K range, 1 firms in the $1M-$2M range, 6 firms in the $2M-$5M range, 13 firms in the $5M-$10M range, 16 firms in the $10M+ range.
Among the 38 firms tracked, 92% lead or co-lead rounds, and 8% 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 security & cybersecurity + 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 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.