30 VC firms investing in security & cybersecurity and real estate & proptech at the Pre-Seed stage.
F4 Fund tracks 30 VC firms that actively invest in security & cybersecurity + real estate & proptech at the Pre-Seed stage, with check sizes ranging from $50K – $25M (median: $1.3M – $1.3M). As of June 2026, and 87% 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 | ▶ 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 |
| 2 | ▶ Team Builder Ventures The biggest constraint for early-stage companies is not capital—it's building a world-class team. We provide capital plus measurable talent sourcing, recruitment excellence, and team-building advisory. We have proven ability to reach candidates not reachable by recruiters or founders, and commit to specific hiring targets for each portfolio company. | $250K – $450K | 36 | Follows | Active | ~2 wks | Open |
| 3 | ▶ Ground Up Ventures We're a different type of venture firm. We wake up every morning and ask ourselves how we can help our portfolio companies move the needle. From in-the-weeds to twenty thousand feet, we are partners at every level. We serve as an extension of founder headcount, sitting in portfolio company Slack channels, maintaining weekly calls, and proactively helping with hiring and customer introductions. New York | $250K – $1.5M | 49 | Follows | Active | ~2 wks | Req'd |
| 4 | ▶ Glasswing Ventures Early-stage founders using AI and frontier technology to reinvent enterprise and security markets. We seek technical founders who deeply understand their problem domain, have operating experience at scale, and are committed to responsible AI development. We provide not just capital but hands-on operational support through our Building Partners model. Boston | $250K – $15M | 41 | Leads | Active | ~2 wks | Open |
| 5 | ▶ Telegraph Hill Capital We back entrepreneurs obsessed with solving big problems using capital-efficient technology. We focus on early-stage tech startups in North America and Western Europe building game-changing B2B software across fintech, logistics, proptech, HR tech, legal tech, and cybersecurity. Barcelona | $100K – $1.5M | 43 | Leads | Active | ~2 wks | Open |
| 6 | ▶ Matchstick Ventures World-changing companies can be built anywhere. Partner with ambitious, underdog, diverse founders in underserved ecosystems. Founder-first relationships: we work for them. Capital + camaraderie + connections + community. Boulder, Colorado and Minneapolis, Minnesota | $500K – $1.5M | 32 | Leads | Active | ~2 wks | Open |
| 7 | ▶ Moxxie Ventures Exceptional founders living in the future deserve operators who provide more than capital. We partner with founders on go-to-market, brand, storytelling, and team building. San Francisco | $500K – $2M | 50 | Leads | Active | ~2 wks | Open |
| 8 | ▶ 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 |
| 9 | ▶ Resolute Ventures We back founders who combine emotional intelligence with business acumen and are on a mission to solve problems they deeply care about. We're often the first institutional check and provide mentorship, community, and long-term partnership support. San Francisco | $50K – $1.5M | 21 | Leads | Active | ~2 wks | Req'd |
| 10 | ▶ 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 |
| 11 | ▶ 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 |
| 12 | ▶ Concrete Rose Capital We invest financial and social capital into exceptional ventures led by visionary, values-aligned teams. Technology is the 'new West' - we seek to broaden opportunities by partnering with pioneering founders to bring entire communities along on their journey of reimagining the world. San Francisco | $100K – $5M | 47 | Both | Active | ~2 mo | Open |
| 13 | ▶ 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 |
| 14 | ▶ Entrepreneurs Roundtable Accelerator (ERA) NYC has tremendous entrepreneurial talent but lacked a structured environment for early-stage founders. ERA provides capital, intense mentorship, and network access to help founders build market-leading companies. Every sector deserves innovation. New York | $150K – $150K | 39 | Leads | Active | ~2 mo | Open |
| 15 | ▶ Boro Capital Invest in scalable, capital-efficient tech and tech-enabled startups at the Seed stage led by exceptional founders. We identify companies showing early traction that can achieve significant scale with disciplined capital deployment. New York | $100K – $500K | 32 | Leads | Active | ~2 wks | Open |
| 16 | ▶ 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 |
| 17 | ▶ 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 |
| 18 | ▶ 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 |
| 19 | ▶ Fika Ventures Investing in subject matter experts shaping the future of their industries. We lead with our values and build trust through action. We believe the best founders have deep industry expertise and need tireless operational support, not just capital. We partner with founders for the long term, staying engaged 24/7. Los Angeles | $1M – $5M | 27 | Leads | Active | ~1 wk | Open |
| 20 | ▶ Commonweal Ventures Entrepreneurs who work constructively with government to harness its unique strengths—scale, credibility, regulatory power, data, and funding—enjoy asymmetric advantages. 24% of venture-backed unicorns used government support. We partner with founders to unlock government as a growth lever. New York | $500K – $2M | 26 | Both | Active | ~1 mo | Req'd |
| 21 | ▶ Kima Ventures Back ambitious teams with strong learning and execution capacities across all sectors, stages, and geographies. Technology-enabled businesses preferred. Volume-based, founder-centric investment philosophy. Paris | $100K – $200K | 25 | Leads | Active | ~2 wks | Open |
| 22 | ▶ Expa We build category-defining companies through a combination of design, product, operations, and capital. We identify market gaps, pair brilliant founders with Expa's studio resources, and help them build companies that reshape entire industries. San Francisco | $500K – $5M | 60 | Leads | Active | ~1 wk | Open |
| 23 | ▶ The Fund The best people to invest in startups are people who have built startups. We identify exceptional founders in geographies outside traditional venture hubs, building locally-run pre-seed funds with community-powered decision making. New York | $50K – $250K | 16 | Leads | Active | ~2 wks | Open |
| 24 | ▶ Picus Capital Empowering entrepreneurs to reimagine the way we live and work by investing in daring technology companies challenging the status quo with permanent capital, lifelong sparring partnership from pre-seed through IPO and beyond. Munich | $100K – $5M | 22 | Leads | Active | ~1 mo | Open |
| 25 | ▶ Mucker Capital Venture capital should be accessible to exceptional entrepreneurs anywhere. Great companies can be built outside Silicon Valley with the right capital, operational expertise, and network support. Santa Monica | $100K – $15M | 21 | Leads | Active | ~2 mo | Open |
| 26 | ▶ Laconia Serious founders building must-have technology for mission-critical industries. We focus on B2B software companies digitizing legacy industries and transforming established workflows. Specializing in seed-stage, where hands-on operational support, sales acceleration, and capital strategy matter most. New York | $250K – $1M | 20 | Leads | Active | ~1 wk | Open |
| 27 | ▶ 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 |
| 28 | ▶ 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 |
| 29 | ▶ Flucas Ventures Democratize access to venture capital by building large syndicates of non-traditional LPs. Invest across all stages, sectors, and geographies based on founder quality and market conviction, not category restrictions. Enable 2,000+ diverse co-investors to participate alongside marquee firms like Sequoia and Andreessen Horowitz while maintaining founder-friendly economics. Miami | $250K – $5M | 17 | Follows | Active | ~1 wk | Req'd |
| 30 | ▶ 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 |
Investors on this page also frequently invest in these sectors
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What other sectors do these firms also invest in?
Firms that frequently co-invest with investors on this page
F4 Fund tracks 30 VC firms that actively invest in security & cybersecurity + real estate & proptech at the Pre-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 pre-seed security & cybersecurity + real estate & proptech investors is $1.3M – $1.3M, with a full range from $50K – $25M. The distribution breaks down as: 8 firms in the <$500K range, 4 firms in the $500K-$1M range, 4 firms in the $1M-$2M range, 7 firms in the $2M-$5M range, 6 firms in the $5M-$10M range, 1 firms in the $10M+ range.
Among the 30 firms tracked, 87% lead or co-lead rounds, and 13% 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 pre-seed security & cybersecurity + real estate & proptech investors combine domain expertise with an active portfolio in the space. Among these firms, 23% prefer warm introductions, and the average firm has 32 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.