4 VCs and 4 funds investing in marketplaces
Co-Founder & Partner
First Round Capital
Check: $500K-$3M (seed only)
The seed-stage specialist. Invests earliest and deepest at seed — First Round was one of the firms that pioneered institutional seed investing. Built First Round into a platform that punches well above its check size — extensive founder community (~1000 active founders), expert network (First Round Network), and operational support. First Round Review (their media arm) produces some of the best tactical startup content anywhere — deeply researched guides on hiring, product, management, and go-to-market. Believes the best seed investors win by helping, not just funding. Josh's personal background as a serial entrepreneur (Half.com, Infonautics) gives him deep empathy for founders. He's lived the founding journey and knows what early-stage companies actually need. First Round's community model is a key competitive advantage — founders help each other, creating a network effect that makes the fund more valuable with every new investment. Known for being one of the most founder-friendly VCs — fast to respond, honest about passing, and genuinely helpful when invested.
Co-Founder & Managing Partner
BoxGroup
Check: $500K-$5M (recently raised a $550M fund in Oct 2025, significantly larger than previous funds)
One of the most active and respected seed investors in NYC. Co-founded TechStars NYC (now Techstars NYC), deeply embedded in the New York startup ecosystem since its earliest days. Known for being highly accessible, fast to decide, and genuinely helpful post-investment. Just raised a $550M fund (Oct 2025) — a massive step up from previous funds, signaling BoxGroup's evolution from small seed fund to significant early-stage player. Not thesis-driven — David reacts to founders and ideas he finds compelling rather than fitting investments into a predefined framework. This flexibility has served him well — his portfolio spans fintech (Plaid), healthcare (Oscar, Ro), consumer (Harry's, Away), and more. The common thread isn't sector but founder quality and early product-market fit signals. David is deeply connected to the NYC startup ecosystem and has helped shape it over the past 15+ years. He's often one of the first calls founders make when starting a company in New York.
Venture Partner
Benchmark
Check: $5M-$15M
Sarah's investing worldview is built on a few interlocking beliefs: (1) The best consumer companies create compounding engagement loops where users do MORE over time, not less. She formalized this into the Hierarchy of Engagement framework: first get users to a 'core action,' then create 'accruing benefits' and 'mounting loss' to retain them, then achieve self-perpetuation through network effects. (2) For marketplaces, aggregate GMV is a vanity metric and a red herring. What matters is 'Happy GMV' — the portion of transactions where both buyer and seller had an experience good enough to drive retention. Happiness, not scale, is your moat. No matter how large an incumbent, they are vulnerable to a new entrant that makes buyers and sellers happier. (3) She prefers founders who start in a 'thimble' of a market — a small, constrained market adjacent to very large ones — and expand outward, rather than going after a big market from day one. (4) In AI, she believes the next wave of consumer AI will be social, not solo. AI avatars, chatbots, and social AI products will win over single-player tools. (5) For B2B AI, she coined 'sell work, not software' — rather than selling a 15% productivity improvement via software, AI startups should sell the completed work itself, delivering a 95% improvement. Incumbents are stuck selling software; startups can leapfrog them. (6) She believes markets have their own physics — 'you can't change those physics, regardless of how great the founder is.'
Co-Founder & Venture Partner
Craft Ventures
Check: $1M-$50M
Pioneered 'Bottom-Up SaaS' — the strategy of applying consumer growth tactics to B2B products. At PayPal he learned viral distribution; at Yammer he proved it could work in the enterprise, growing from zero to $56M ARR in under four years before selling to Microsoft for $1.2B. The core filter is predictable, compounding recurring revenue with strong unit economics. Invented the 'Burn Multiple' metric (net burn / net new ARR) that has become an industry-standard efficiency benchmark. Believes the best SaaS companies combine the growth potential of B2C with the enterprise budgets of B2B. Invested in 20+ unicorns. Operator-investor who thinks in SaaS metrics and has published detailed frameworks (Burn Multiple, Difficulty Ratio, The Cadence, Pipeline Metrics) that founders can reverse-engineer. Recently transitioned from General Partner to Venture Partner at Craft as the firm moved away from seed-stage investing.