81 VC firms investing in security & cybersecurity and robotics & automation at the Seed stage.
F4 Fund tracks 81 VC firms that actively invest in security & cybersecurity + robotics & automation at the Seed stage, with check sizes ranging from $50K – $150M (median: $2.6M – $2.6M). As of June 2026, and 89% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,358+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ Emergent Ventures Seed-stage Enterprise AI and intelligent software investor partnering with ambitious founders at the earliest stages. Distinctive Silicon Valley + India model: backing Indian-origin founding teams building for global enterprise markets. Hands-on support for product-market fit, GTM strategy, and scaling — 4 of 5 backed companies achieve strong PMF. San Mateo, CA | $200K – $3M | 51 | Follows | Active | ~1 mo | Open |
| 2 | ▶ Silent Ventures Exceptional founders building unrivaled aerospace, defense, and national security companies. Silent Ventures takes a contrarian bet on defense tech at the earliest stages — concept, pre-seed, and seed — when most institutional capital is unavailable. The firm believes the next generation of great defense companies will be built by mission-driven startup founders combining private-sector speed with national security urgency. Dallas | $1.5M – $3M | 34 | Leads | Active | ~1 mo | Open |
| 3 | ▶ Point72 Ventures Point72 Ventures backs ambitious founders building for big outcomes across critical domains. Going deep, not wide—the firm focuses on specialized investment theses in AI, Consumer, and Defense Tech, bringing deep sector insights, partnership, and hands-on support from seed to pre-IPO. New York | $250K – $50M | 203 | Both | Active | ~2 wks | Req'd |
| 4 | ▶ First In Security technology is a necessity independent of economic cycles. We back technical experts who have seen over the horizon as security practitioners across commercial, military, or intelligence sectors. We invest in entrepreneurs who are on a mission to secure our freedom. Washington | $500K – $5M | 33 | Leads | Active | ~2 mo | Open |
| 5 | ▶ Scout Ventures Scout invests in frontier technologies built by founders from military, intelligence, and national research labs. The team provides capital, operational partnership, government network access, and non-dilutive capital leverage. Focus on dual-use technologies with both commercial and defense applications. Austin | $500K – $5M | 30 | Leads | Active | ~2 wks | Open |
| 6 | ▶ 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 |
| 7 | ▶ Third Prime Third Prime invests in companies rewiring how capital, assets, and operations move through the economy. We focus on three intersecting 'real-economy infrastructure' verticals—fintech, proptech, and crypto/blockchain—backing platforms that enable paradigm shifts in these sectors. We believe technology should serve real economic activity, not replace it. New York | $1M – $5M | 33 | Both | Active | ~2 wks | Req'd |
| 8 | ▶ 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 |
| 9 | ▶ K9 Ventures Extraordinary things are possible when great teams come together around technology. K9 invests at the pre-seed stage with founders, betting on vision and execution. Money is a commodity; reputation and time are the currencies that matter. We provide not just capital but active operational support, hands-on mentorship, and board governance. Palo Alto | $250K – $750K | 48 | Leads | Active | ~2 wks | Open |
| 10 | ▶ Monta Vista Capital Seed stage funding for entrepreneurs, by entrepreneurs. We invest in early-stage B2B technology companies founded by subject matter experts with a vision to transform their industries. As a team of former operators, we provide not just capital but active network support, operational guidance, and strategic counsel. Mountain View | $1M – $2M | 31 | Leads | Active | ~2 wks | Open |
| 11 | ▶ Accel Partner with exceptional teams building transformative technology companies across all stages San Francisco | $2M – $10M | 127 | Both | Active | — | — |
| 12 | ▶ Boldstart Ventures We invest in bold technical founders building the autonomous enterprise. Before you build your team, before you write your first line of code—that's when boldstart gets to work. We collaborate with technical founders at Inception, lead pre-product rounds, and help turn bold ideas into category-creating companies. Miami | $250K – $15M | 27 | Leads | Active | ~1 wk | Open |
| 13 | ▶ Privilège Ventures We back bold, ambitious, and resilient founders driving breakthrough innovations in HealthTech, CleanTech, and AgriFoodTech. Female-led and gender-mixed teams deliver superior returns and drive meaningful impact. Over five decades of combined experience navigating financial cycles enables us to partner authentically with founders, providing not just capital but strategic guidance and operational support. Switzerland | $100K – $1M | 25 | Both | Active | — | — |
| 14 | ▶ Centre Street Partners Partner with technical operators and SMB owners to execute technology-led middle-market buyouts. Capture outsized economic value from AI at the ownership layer of services providers rather than pure-play tech. New York | $5M – $50M | 24 | Leads | Active | ~1 mo | Req'd |
| 15 | ▶ Massive Investing in inevitable deep tech. Back visionary founders building transformational companies in domains where technological disruption is predetermined, not probable. Focus on early scale inflection points where companies move from potential to proven commercial viability. Golden, CO | $500K – $3M | 24 | Both | Active | ~2 wks | Open |
| 16 | ▶ Skyfall Ventures AI represents a fundamental platform shift, reshaping how companies build products, scale and compete. Reduced innovation costs and advanced tooling enable small Nordic teams to challenge incumbents rapidly. Back founders who believe in paradigm-shifting breakthroughs requiring tectonic shifts in technology or market dynamics. Focus on Nordic early-stage companies with strong software components and at least one technical co-founder. Oslo | $250K – $5M | 36 | Leads | Active | ~1 mo | Open |
| 17 | ▶ Kearny Jackson The first investor for ambitious and relentless technology founders building transformative B2B companies. Kearny Jackson partners with founders at the moment of greatest conviction and product clarity, providing capital, strategic guidance, founder coaching, and access to deep networks. San Francisco | $100K – $5M | 35 | Leads | Active | ~2 wks | Req'd |
| 18 | ▶ Moonshots Capital Back extraordinary leadership teams—founders exceptional at building and exiting businesses with leadership styles that military-trained partners can uniquely mentor, support, and supercharge. Particular conviction in military veteran founders (30%+ of AUM) who demonstrate proven track record, drive, mission-orientation, teamwork, strategic excellence, growth mindset, and integrity. Austin | $1M – $10M | 35 | Leads | Active | ~2 wks | Open |
| 19 | ▶ SuperSeed Back technical founders bringing AI to the physical world — manufacturing, logistics, construction, defence, energy, and infrastructure. Bridge the gap between AI pilots and production-deployed systems generating enterprise revenue. London | $250K – $2M | 35 | Leads | Active | ~1 mo | Open |
| 20 | ▶ Vela Partners AI-native quant VC backing seed-stage founders with speed and precision. The world's first AI-only fund uses proprietary machine learning models and a University of Oxford research partnership to identify exceptional founders building category-defining AI products. Vela's AI Suite analyzes 300+ early-stage companies weekly; their models demonstrate 10-20x improvement over baseline success prediction rates. San Francisco | $100K – $500K | 34 | Leads | Active | ~1 wk | Open |
| 21 | ▶ 11.2 Capital We invest in technically sophisticated founding teams solving breakthrough problems in deep-tech. We believe the next generation of transformational companies will be built by scientists and engineers with deep domain expertise tackling problems at the frontier of AI, cybersecurity, quantum, robotics, space, synthetic biology, and bioengineering. We provide patient capital and technical partnership to help these teams achieve escape velocity. San Francisco | $500K – $3M | 21 | Leads | Active | ~2 wks | Open |
| 22 | ▶ BlueYard Capital Invest in only two kinds of technologies: those that move humanity toward utopia, and those that hold the line against oblivion. Back n-of-1 visions for an era of Black Swans—unconventional companies solving civilization-scale problems that others dismiss as too early, too risky, or too misunderstood. Berlin | $500K – $5M | 58 | Leads | Active | ~2 mo | Open |
| 23 | ▶ Conviction We are extremely early in translating powerful AI models into products that transform industries. Startups have the speed and unruliness to build transformative AI-native companies; big companies are too slow. There has never been a better time to start a startup. United States | $1M – $25M | 20 | Leads | Active | ~2 wks | Open |
| 24 | ▶ True Ventures We invest in brilliant people who bring ideas that matter to life. We focus on AI-native founders building companies with strong founder-product fit, aligned on mission and meaning, seeking creative freedom and psychological safety. Great companies are built by diverse teams supported and empowered to be maximally creative. Palo Alto | $500K – $3M | 41 | Leads | Active | ~1 wk | Req'd |
| 25 | ▶ Ravelin Investing in founders building critical software that addresses the decay of Western infrastructure, institutions, and industrial base. Ravelin backs software-defined transformation of aerospace, defense, manufacturing, energy, and industrial sectors. San Francisco | $100K – $500K | 18 | Follows | Active | ~2 wks | Open |
| 26 | ▶ C4 Ventures Operators backing entrepreneurs building global companies with exceptional people, world-class products, and cutting-edge technology. C4 focuses on deep tech and AI where operational expertise creates meaningful value. The firm believes Europe can compete globally in AI and robotics. Paris | $2M – $5M | 17 | Leads | Active | ~1 mo | Open |
| 27 | ▶ Mark VC Mark VC takes a deeply founder-centric approach, building '360-degree behavioral maps' of founders through extensive personal reference calls. They invest across industries but focus on security & defense, healthcare, consumer, and enterprise software. They strive to be the most valuable investor on the cap table through hands-on coaching and operational support. Austin | $500K – $5M | 25 | Both | Active | ~2 mo | Req'd |
| 28 | ▶ Menlo Ventures Menlo invests in transformative technology companies at multiple stages of early growth. We provide capital, operational expertise, and hands-on support to help founders build scalable businesses that change how we live and work. San Francisco | $500K – $20M | 16 | Leads | Active | ~2 wks | Open |
| 29 | ▶ 8-Bit Capital Network-powered startups connecting people and businesses through software tools and platforms | $250K – $3M | 55 | Both | Active | — | — |
| 30 | ▶ Exceptional Capital We back the most ambitious founders building for enterprise, providing them with capital, confidence, and credibility. We believe exceptional founders with unrivaled tenacity and imagination can engineer exceptional futures in enterprise software, AI, and infrastructure. Miami | $100K – $2M | 24 | Leads | Active | ~2 wks | Open |
| 31 | ▶ Costanoa Ventures Building transformational companies requires more than capital—it demands deep operational expertise, consistent partnership, and genuine commitment to founders' success. Costanoa backs visionaries solving big, hard problems across data infrastructure, applied AI, cybersecurity, fintech, and national security. The firm centers on the 'missing middle' of early-stage investing: providing unusually intensive, hands-on support to founder teams during their most critical growth phases. Palo Alto | $2M – $10M | 33 | Leads | Active | ~1 wk | Open |
| 32 | ▶ Tiny Supercomputer Investment Company Back ambitious and unique technology startups as early as possible — ideally from day one. High volume, small checks (~€200-250K), primarily European pre-seed and seed. No board seats, no round leadership. Value-add through a 900+ founder community. London | $200K – $250K | 42 | Follows | Active | ~2 wks | Open |
| 33 | ▶ 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 |
| 34 | ▶ Pathlight Ventures Low volume, high conviction early-stage investing in 10 thematic areas where vertical AI is reshaping regulated, complex industries: healthcare, fintech, capital markets, industrial operations, security, and government. Back strongly opinionated founders building category-defining companies with direct operator support from a team with deep fintech and growth scaling experience. New York City | $250K – $3M | 39 | Leads | Active | ~1 mo | Open |
| 35 | ▶ 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 |
| 36 | ▶ Angular Ventures Backs inception-stage technical founders across Europe and Israel building solutions for hard markets including AI infrastructure, space/aerospace, advanced manufacturing, energy, biology, and other deep-tech verticals. London | $500K – $5M | 46 | Leads | Active | ~2 wks | Open |
| 37 | ▶ 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 |
| 38 | ▶ Kleiner Perkins Partner with exceptional founders building transformative technology companies from inception to IPO and beyond. Our moral compass is serving humanity with technology and capital. We provide not just capital but operational support, network access, and board participation to maximize the potential of founders' ideas and make history. Menlo Park | $100K – $150M | 27 | Leads | Active | ~2 wks | Open |
| 39 | ▶ Inspired Capital Partners Venture capital is the most powerful economic engine the world has ever seen. We back audacious founders solving humanity's hardest challenges through category-creating innovations. We embrace big risks and reject short-termism, committing to 15+ year partnerships with founders who have long-term vision and relentless determination. New York | $500K – $20M | 62 | Leads | Active | ~2 mo | Req'd |
| 40 | ▶ Drive Capital World-class technology companies can be built anywhere. Greatness is in our backyard. We invest in market-defining companies across the Driveway region (Hudson River to Rocky Mountains), partnering with founders from idea to IPO. Build where your talent is. Build where your customers are. Build where you're strongest. Columbus | $500K – $150M | 33 | Leads | Active | ~2 mo | Open |
| 41 | ▶ Pax Ventures Pax Technica: The next era of American global leadership will emerge from physical-world technological superiority — reinventing defense, energy, manufacturing, aerospace, and critical infrastructure. Backs mission-driven founders tackling the hardest industrial-scale problems. Menlo Park | $1M – $4M | 18 | Leads | Active | ~2 wks | Open |
| 42 | ▶ Foothill Ventures Back technical teams working on breakthrough products. We invest in seed stage companies that demonstrate technical differentiation - meaning technical or product-level superiority is a major reason for future success. We pursue investments from application layer (AI/ML) through software infrastructure to hardware layers (semiconductors, photonics). Los Altos, California | $250K – $10M | 25 | Leads | Active | ~1 wk | Open |
| 43 | ▶ Inertia Ventures Inertia invests in AI-native companies built to become core infrastructure for legacy industries, especially platforms operating in regulated, context-heavy, and physical-world workflows where durable data, compliance, audit trails, or embodied operations create compounding advantages. New York | $2M – $15M | 66 | Leads | Active | ~2 wks | Req'd |
| 44 | ▶ Bloomberg Beta We invest in companies that make business work better, backed by a commitment to understanding profound changes in how business operates. We seek founders with the potential to build extraordinary, outlier companies through transparency, founder-first principles, and patient capital from our investor Bloomberg L.P. San Francisco | $250K – $2M | 24 | Leads | Active | ~2 wks | Open |
| 45 | ▶ u.ventures u.ventures backs local entrepreneurs who dare to build exciting global ventures. The firm focuses on early-stage technology startups with world-class founding teams from Ukraine and Eastern Europe with global market ambitions, scalable products, and competitive advantages. Chicago | $200K – $2M | 24 | Leads | Active | ~1 mo | Open |
| 46 | ▶ Defy VC Back exceptional entrepreneurs building enduring companies that defy expectations. Value authenticity and tenacity to turn daring ideas into lasting impact. One life-altering investment can lead to industry-wide transformation. San Mateo, California | $100K – $10M | 38 | Leads | Active | ~1 wk | Req'd |
| 47 | ▶ 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 |
| 48 | ▶ Two Sigma Ventures As the world becomes more information-rich, most transformative new companies will leverage data science, machine learning, and advanced computing power. We back founders building breakthrough solutions at this intersection. New York | $2M – $25M | 30 | Leads | Active | ~1 mo | Req'd |
| 49 | ▶ FoundersX Ventures AI-first venture capital firm investing in AI transformation and digital infrastructure across GenAI Infrastructure (AI chips, quantum, autonomous robotics), Deep Domains (fintech, healthcare, enterprise), and GenAI Agents (autonomous AI for real-world consumer and enterprise use). Menlo Park | $500K – $3M | 36 | Leads | Active | ~1 mo | Req'd |
| 50 | ▶ OpenAI Startup Fund New and powerful AI systems will give rise to transformative startups. We back exceptional engineers, designers, researchers, and product builders using AI to solve critical problems in healthcare, law, education, energy, sciences, and enterprise. We provide capital, operational support, talent expertise, and conviction follow-on investing. San Francisco | $1M – $5M | 15 | Both | Active | ~2 wks | Open |
| 51 | ▶ Black Flag Be the first check in for founders building America's next era of critical technologies. Invest in audacious founders across Defense, Aerospace, Energy, AI, Manufacturing, Cybersecurity, and Health+Bio solving problems critical to national security and American technological leadership. Provide capital ($250K-$1M), unmatched government access, mentor network, and go-to-market acceleration. San Diego | $250K – $1M | 21 | Leads | Active | ~1 mo | Open |
| 52 | ▶ Foundry Group We invest in startups and venture funds, creating a symbiotic network that propels innovation. Our approach is characterized by long-term thinking and a 'give first' philosophy. Boulder, Colorado | $500K – $10M | 26 | Leads | Active | ~1 mo | Req'd |
| 53 | ▶ Morpheus Ventures We are professional fixers for complex situations. An extension of your team. Fierce defenders when you need us most. Partners who roll up their sleeves. We invest in early-stage companies helping them avoid traditional roadblocks on their path to hypergrowth. We specialize in navigating hostile situations, IP protection, and crisis management. Los Angeles | $1M – $10M | 32 | Leads | Active | ~2 mo | Open |
| 54 | ▶ Pear VC Exceptional founders backed at pre-seed and seed with both capital and hands-on operational support—talent, GTM, fundraising—build the most enduring companies. Pear is founder-first: founders-and-operators turned investors who have been in founders' shoes. Menlo Park | $250K – $6M | 43 | Leads | Active | ~1 mo | Open |
| 55 | ▶ Boost VC Back the quirky underdog pursuing seemingly impossible ideas. Frontier tech (aerospace, biotech, climate, robotics, crypto, AI, VR/AR) will create the next generation of legendary companies. Technical founders with deep domain expertise can solve the hardest problems in physics, chemistry, and computing. San Mateo, California | $500K – $3M | 30 | Leads | Active | ~1 wk | Open |
| 56 | ▶ Tapestry VC Repeat founders have an unfair advantage. We specialize in supporting experienced operators launching their next venture with operational partnership, patient capital, and optimized founder networks. San Francisco | $500K – $5M | 24 | Leads | Active | ~2 wks | Req'd |
| 57 | ▶ Outsiders Fund Technological innovation is unevenly distributed. The hottest, most visible sectors attract talent and capital, while overlooked industries hide massive value creation opportunities. We back unconventional founders disrupting unglamorous, technology-inefficient, long-standing industries. New York | $500K – $8M | 34 | Both | Active | ~2 wks | Open |
| 58 | ▶ Sierra Ventures Sierra believes enterprise software is being fundamentally transformed by cloud computing and AI. They invest in technical founders building the next generation of enterprise solutions that deliver superior ROI through better efficiency, automation, and capability. The firm particularly focuses on infrastructure, security, healthcare innovation, and emerging deep tech. San Mateo, California | $500K – $15M | 28 | Both | Active | ~2 wks | Req'd |
| 59 | ▶ ff Venture Capital ffVC invests in driven problem-solvers building high-potential companies in emerging industries: AI, Manufacturing, Energy, Robotics, and Security. We provide capital alongside deep operational expertise, board participation, and access to a 35,000+ founder and investor ecosystem. We bet on founders with industry expertise, clear paths to $100M+ revenue, and defensible competitive advantages. New York | $300K – $700K | 22 | Leads | Active | ~2 mo | Req'd |
| 60 | ▶ Impact Venture Capital Corporate-advantage seed investing. We identify promising AI and deep tech startups early, then leverage our hundreds of relationships with corporate venture capital arms to de-risk investments, accelerate time to exit, and create curated dealflow where both founders and corporates benefit from strategic alignment. El Dorado Hills, CA | $250K – $1M | 22 | Leads | Active | ~2 wks | Req'd |
| 61 | ▶ Decisive Point Amplify founder impact through capital paired with deep expertise in government market access, federal R&D funding capture, and government contracting strategy. Focus on dual-use technologies addressing national security, defense, energy, and infrastructure challenges. Beacon, NY | $500K – $10M | 21 | Leads | Active | ~2 mo | Req'd |
| 62 | ▶ Eniac Ventures Partner with exceptional founders building from 0 to 1, with focus on AI applications, developer tools, SaaS, and healthcare. Believe in founders who have succeeded once or have deep domain expertise. | $500K – $5M | 26 | Leads | Active | ~2 wks | Open |
| 63 | ▶ RRE Ventures RRE backs visionary early-stage founders leveraging technological breakthroughs to reshape industries. Systematic focus on Physical AI (AI that touches atoms) and Decentralized AI (bridging web3 and AI infrastructure). Boutique model enables direct partnerships with founders vs. large portfolio strategies. 30+ years of multi-cycle experience. New York | $1M – $15M | 26 | Leads | Active | ~2 wks | Open |
| 64 | ▶ ZhenFund Believe in innovation, risk-taking, and young talent. Best entrepreneurs are rare and precious. Provide quick capital, friendly terms, genuine commitment. Help but don't complicate. Monthly founder support. Beijing | $250K – $3M | 25 | Leads | Active | ~2 wks | Open |
| 65 | ▶ 645 Ventures We partner with relentless founders who defy convention to change the future. Our four founder paradigms—purity of motivation, earned secret, obsessed problem solving, and non-consensus thinking—guide our investment decisions. We believe the best founders are intrinsically motivated to solve real problems, have deep domain expertise, relentlessly iterate to find better solutions, and have the courage to diverge from established paths. New York | $1M – $10M | 30 | Leads | Active | ~2 mo | Open |
| 66 | ▶ HOF Capital HOF Capital invests in relentlessly ambitious founders building world-changing technologies that accelerate abundance: sustained technological progress that expands access to opportunity, health, and economic prosperity. Its current public thesis emphasizes AI and agentic systems as amplifiers of discovery, engineering, and knowledge creation, alongside frontier infrastructure and applications that can shorten scientific and technological invention timelines. New York | $500K – $10M | 29 | Both | Active | ~2 wks | Req'd |
| 67 | ▶ Bitspiration The only early-stage deep tech VC in CEE focusing on resilient technologies. We invest in founders building breakthrough technologies with proprietary IP in deep tech, MedTech, cleantech, autonomous vehicles/robotics, industrial, and resilient-tech. Technology must be genuinely unique and address real problems. Kraków, Poland | $50K – $1M | 10 | Both | Active | — | — |
| 68 | ▶ Sand Hill Angels Sand Hill Angels backs seed-stage, high-tech companies with large and growing markets, well-defined problems, disruptive solutions, defensible technology, and strong teams with demonstrated ability to execute. The group leverages 145+ experienced angels to provide capital, mentorship, and network access across the Silicon Valley ecosystem. Mountain View | $50K – $2M | 30 | Follows | Active | — | Open |
| 69 | ▶ LDV Capital A majority of the data our brains analyze is visual. Therefore, the majority of the data AI will analyze will also be visual, spanning the light and electromagnetic spectrums across all sectors. We thrive on collaborating with deep technical teams who leverage computer vision, machine learning and artificial intelligence to analyze visual data. New York | $500K – $1.5M | 28 | Leads | Active | ~2 wks | Req'd |
| 70 | ▶ Vibe Capital Investing in the picks and shovels of volatility caused by convergent forces (AI, Web3, Deep Science) intersecting with demographic shifts and climate change. We seek to create venture-scale returns by backing bold founders building more equitable, beneficial, transparent, and accessible structures. New York | $250K – $500K | 22 | Both | Active | ~2 mo | Open |
| 71 | ▶ Space.VC Exceptional entrepreneurs building critical national security, space, and industrial infrastructure at day zero deserve capital and strategic support from founders who've scaled before. We provide capital, industry network introductions, capital connections to Series A leads, and ecosystem access. Austin | $100K – $1M | 10 | Leads | Active | ~1 wk | Req'd |
| 72 | ▶ Crossbeam Venture Partners We are a stage-agnostic venture capital firm investing in exceptional founders building the companies that shape our world. New York | $500K – $3M | 20 | Both | Active | ~2 wks | Open |
| 73 | ▶ 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 |
| 74 | ▶ Rule30 Rule30 uses a fully algorithmic decision engine to identify outlier founders at pre-seed and seed stages across Europe and North America. The fund removes human bias by analyzing founder experience, educational background, network evolution, and career trajectory — excluding names and photos. The algorithm ranks founders into top 10%, 3%, and 0.1% tiers. An index-style strategy of 75-85 bets targets ≥3x minimum returns with 97.5% confidence. London | $100K – $300K | 21 | Follows | Active | ~1 wk | Open |
| 75 | ▶ Stout Street Capital Great startups can be built anywhere. We believe in founder-centric investing with operational support from a team of successful founders. We serve undernetworked geographic regions. Denver | $100K – $500K | 26 | Both | Active | ~2 wks | Open |
| 76 | ▶ 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 |
| 77 | ▶ Athenian Capital AI, autonomy, and cybersecurity will define both economic prosperity and national security. We invest in early-stage founders leveraging unfair advantages to build category-leading dual-use technology startups that serve both commercial and defense markets. Cambridge | $500K – $1M | 1 | Leads | Active | ~2 wks | Open |
| 78 | ▶ Strider Capital The next generation of transformative technologies will emerge from entrepreneurs building solutions for national defense, security, and critical infrastructure protection. We invest at the intersection of technology and geopolitical imperatives. Washington | $250K – $2M | 1 | Leads | Active | 3+ mo | Req'd |
| 79 | ▶ Levante Capital Invest in the most promising Southern European (primarily Italian) deep-technology companies across Advanced Manufacturing, Life Science, and Energy & Environment, and actively support their expansion into Asian markets (China, South Korea, Japan, South-East Asia). The fund uses a proprietary evaluation framework and a 'pull model' — companies must demonstrate genuine Asian market interest before investment. Milan, Italy | $500K – $3M | 8 | — | Active | ~2 mo | Open |
| 80 | ▶ TheoryForge Operator-led fund investing in ambitious founders building transformative AI applications. We partner with technical founders who understand AI/ML deeply and are solving real customer problems with capital efficiency. Great product is always the best marketing. | $200K – $500K | 38 | Both | Active | ~2 wks | Req'd |
| 81 | ▶ Zero Shot Fund Investing in the Post-AGI World. Back founders building essential infrastructure, automation, robotics, energy, education, AI security, and biology applications in a world shaped by AI. The fund leverages deep OpenAI insider knowledge to identify where the market is wrong about AI's trajectory. San Francisco | $500K – $3M | 2 | Follows | Active | ~1 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?
Firms that frequently co-invest with investors on this page
F4 Fund tracks 81 VC firms that actively invest in security & cybersecurity + robotics & automation at the Seed 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 seed security & cybersecurity + robotics & automation investors is $2.6M – $2.6M, with a full range from $50K – $150M. The distribution breaks down as: 8 firms in the <$500K range, 8 firms in the $500K-$1M range, 21 firms in the $1M-$2M range, 17 firms in the $2M-$5M range, 15 firms in the $5M-$10M range, 12 firms in the $10M+ range.
Among the 81 firms tracked, 89% lead or co-lead rounds, and 10% 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 seed security & cybersecurity + robotics & automation investors combine domain expertise with an active portfolio in the space. Among these firms, 32% prefer warm introductions, and the average firm has 33 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.