19 Seed Infrastructure investors in San Francisco

funds listed

19

median check (15 of 19 publish one)

$500K–$3M

filed an SEC Form D in the last 90 days

0

last updated, 2026

Oct 4

1. 

   Y Combinator
   $500K–$2MSeedPre-Seed

   YC turns builders into formidable founders by providing structured mentorship, funding, and network access during a 12-week batch program. The…

   1 partner listedView fund →
2. 

   South Park Commons
   $250K–$1MSeedPre-Seed

   South Park Commons helps talented technologists and founders turn 'illegible into the inevitable' by providing a home for figuring out what's next,…

   2 partners listedView fund →
3. 

   Basecase Capital
   $1M–$5MSeedPre-Seed

   Write the first check to builders who are still dreaming, tinkering, and exploring what they want to create. Work with founders pre-product,…

   1 partner listedView fund →
4. 

   Uncork Capital
   $250K–$2MSeed

   Uncork invests early in founder potential and AI-native companies creating leverage and unlocking scale before conviction is obvious.

   7 partners listedView fund →
5. 

   True Ventures
   $250K–$2MSeedSeries A

   Accelerating AI-native founders at the earliest stages. Lead early rounds in companies and founders building the future, providing that first check…

   4 partners listedView fund →
6. 

   BOLDstart Ventures
   $250K–$5MSeedSeries A

   Partner with bold technical founders from inception, before product or first check, backing AI-native infrastructure, security, apps, and models to…

   1 partner listedView fund →
7. 

   Initialized Capital
   $250K–$5MSeed

   Champion inspired and obsessive builders across seed stage, from enterprise SaaS to sustainability, health, hard tech, AI, infrastructure, consumer,…

   6 partners listedView fund →
8. 

   Primary Venture Partners
   $250K–$2MSeed

   We back founders building things the world hasn't seen yet, at the moment before the world believes. We are a specialized and scaled seed fund…

   9 partners listedView fund →
9. 

   Amplify Partners
   $500K–$3MSeedSeries A

   Amplify invests in technical founders building the next generation of applications, models, tools, and infrastructure. For almost 15 years they have…

   2 partners listedView fund →
10. 

    Haystack
    $25K–$500KSeed

    Backing outlier founders at the earliest stages.

    3 partners listedView fund →
11. 

    Scribble Ventures
    $750K–$1.5MSeedPre-Seed

    Back the world's best AI native founders at pre-seed and seed stages with product and go-to-market expertise from OpenAI, Meta, Twitter, and a16z to…

    Partners not yet listedView fund →
12. 

    Pillar VC
    $500K–$5MSeedSeries A

    Partner at inception with technically brilliant founders who see past impossible to inevitable. Invest in technical breakthroughs becoming…

    Partners not yet listedView fund →
13. 

    Vertex Ventures
    $500K–$10MSeedSeries A

    We are founders and operators who partner with early-stage founders building infrastructure and SaaS companies, leveraging our experience to help…

    6 partners listedView fund →
14. 

    Sequoia Capital
    $500K–$50MSeedSeries ASeries BSeries CGrowth

    Help the daring build legendary companies through capital, expertise, and network.

    18 partners listedView fund →
15. 

    Greylock Partners
    SeedPre-SeedSeries A

    First-check investor (pre-seed, seed, series A) deeply focused on AI-first companies. Partners selectively, cares deeply, and strives for excellence…

    Partners not yet listedView fund →
16. 

    Bessemer Venture Partners (Seed)
    SeedGrowth

    Back audacious founders through dedicated early and growth practices with founder-focused, long-term support across multiple sectors where AI is…

    Partners not yet listedView fund →
17. 

    Mayfield Fund
    SeedSeries A

    First institutional investor for early-stage AI founders, with 70% of investments beginning at inception. People-first approach to building…

    Partners not yet listedView fund →
18. 

    First Round Capital
    $500K–$15MSeed

    First Round partners with unreasonable founders at the earliest stages to help them imagine and build transformative companies. The fund focuses on…

    Partners not yet listedView fund →
19. 

    Paradigm
    Seed

    Paradigm builds and invests across crypto, AI, robotics, and other new frontiers, with a focus on advancing the frontier for everyone through…

    Partners not yet listedView fund →

DryPowder lists every fund with a public profile tagged Seed and Infrastructure and headquartered in San Francisco. Funds whose largest published check is $5M or less come first; inside each group, funds with a verified SEC Form D in the last 30 days lead, then profile quality decides. Form D dates come from SEC EDGAR, and SPV and single-deal filings are dropped. Check sizes are what each fund publishes; the median uses only the 15 funds that publish one.