18 VC firms investing in real estate & proptech and aerospace & defense at the Pre-Seed stage.
F4 Fund tracks 18 VC firms that actively invest in real estate & proptech + aerospace & defense at the Pre-Seed stage, with check sizes ranging from $50K – $500M (median: $875K – $875K). As of June 2026, and 72% 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 | ▶ Link Ventures We invest in early-stage AI-driven startups founded by top technical talent from MIT, Harvard, and Boston ecosystem. We believe transformative AI innovation is emerging from university-affiliated founders backed by comprehensive operational support, mentorship, and access to world-class networks. Cambridge | $1M – $8M | 76 | Leads | Active | ~2 wks | Req'd |
| 2 | ▶ 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 |
| 3 | ▶ 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 |
| 4 | ▶ UpHonest Capital We invest in the most promising entrepreneurs building the fastest-growing early-stage startups. We provide cross-border access by connecting founders to resources and networks across the world's most valuable and influential VC markets. Palo Alto | $50K – $1M | 26 | Follows | Active | ~1 mo | Open |
| 5 | ▶ DFS Lab Digital financial services in Africa should augment existing informal and agent-based networks rather than replace them ("cyborgs over androids"). We use proprietary research on frontier markets to guide investments and provide portfolio companies with strategic insights on market opportunity. Seattle | $50K – $1M | 18 | Both | Active | ~2 mo | Req'd |
| 6 | ▶ 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 |
| 7 | ▶ Brickyard Extraordinary founders execute faster when isolated from distractions and provided intensive on-site support. We seek junkyard dogs with high agency, non-obvious vision, delusional optimism, and execution discipline. Category matters far less than founder quality. Chattanooga, TN | $100K – $500K | 52 | Both | Active | ~2 wks | Open |
| 8 | ▶ 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 |
| 9 | ▶ Expansion Venture Capital Entrepreneurs, not VCs, build great companies. We invest early in great & passionate entrepreneurs and serve as long-term partners. Available 24/7 to help founders with mentorship, product-market fit, fundraising, business development, customer acquisition, talent sourcing, and strategic partnerships. New York | $250K – $1M | 30 | Leads | Active | ~1 wk | Open |
| 10 | ▶ 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 |
| 11 | ▶ Strong Ventures Back resilient founders building category-defining companies. Leverage Korea's cultural wave for global expansion. When others say 'no', we find the 'yes'. Los Angeles | $500K – $5M | 33 | Both | Active | ~2 wks | Open |
| 12 | ▶ Halogen Ventures The smartest place you can invest your capital is in women. We bet on early-stage female-founded and female-led companies creating groundbreaking consumer and B2B software technologies that solve meaningful problems in families, healthcare, childcare, education, climate, and sustainability. Santa Monica | $100K – $1M | 29 | Follows | Active | ~1 mo | Req'd |
| 13 | ▶ TenOneTen Ventures Technical founders backing technical founders. We invest early in technical teams transforming major industries facing existential threats and tremendous opportunities. We target essential sectors—healthcare, logistics, real estate, manufacturing—where technical innovation solves critical problems. Los Angeles | $250K – $5M | 24 | Leads | Active | ~2 wks | Open |
| 14 | ▶ 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 |
| 15 | ▶ 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 |
| 16 | ▶ 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 |
| 17 | ▶ 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 |
| 18 | ▶ 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 |
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F4 Fund tracks 18 VC firms that actively invest in real estate & proptech + aerospace & defense 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 real estate & proptech + aerospace & defense investors is $875K – $875K, with a full range from $50K – $500M. The distribution breaks down as: 4 firms in the <$500K range, 6 firms in the $500K-$1M range, 1 firms in the $1M-$2M range, 5 firms in the $2M-$5M range, 1 firms in the $5M-$10M range, 1 firms in the $10M+ range.
Among the 18 firms tracked, 72% lead or co-lead rounds, and 28% 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 real estate & proptech + aerospace & defense investors combine domain expertise with an active portfolio in the space. Among these firms, 39% 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.