Floodgate

Floodgate is a Bay Area early-stage venture firm with a long track record of high-conviction seed and pre-seed investing, with a generalist mandate that has produced legendary returns in consumer and enterprise software. Healthcare exposure has been opportunistic rather than thematic, with the firm’s brand built on early bets in companies like Twitter, Lyft, and Twitch rather than a structured healthcare practice. For healthcare AI founders, Floodgate is a high-bar generalist option; access is gated by founder pedigree, market size ambition, and category-creation potential rather than sub-vertical fit. Plausible check sizes run 500K to 3M at seed, with the firm comfortable leading at the earliest stages. Follow-on capacity is selective. Founders building healthcare AI with category-defining ambition, billion-dollar market potential, and a credible founder narrative should approach: foundation models for biology, AI-native healthcare platforms with consumer-scale ambition, or infrastructure plays with horizontal applicability are in the realm. Founders pitching incremental healthcare workflow improvements, niche vertical SaaS, or services-heavy businesses will not clear the bar; this is a fund that invests in 100x outcomes, not 5x ones. Entry path is warm introduction through portfolio founders or Stanford-adjacent operator networks; the cold inbound funnel exists but is dominated by extreme signal cases. Mike Maples Jr. and Ann Miura-Ko set a high bar in diligence around insight, timing, and founder authenticity. Bring a sharp prepared mind narrative: why now, why you, why this is a category. If you cannot answer those crisply, do not pitch yet.