S28 Capital
Early-stage venture fund run by operators and entrepreneurs, helping next-generation founders build their companies.
San Francisco, United States · 31+ investments · 58 portfolio companies
- Headquarters
- San Francisco, United States
- Founded
- 2015
- Website
- s28capital.com
- AUM
- $170.0M
- Portfolio Companies
- 58
- Total Investments
- 31
- Last Investment
- Oct 2025
- Geographic Focus
- United States, Asia, Canada, France, Israel, United Kingdom
Investment Thesis
S28 Capital is a Venture Capital firm based in San Francisco, United States. It has made 31 investments in B2B Technology and Cybersecurity, including Hero, Seawise Capital and Rhumbix.
Portfolio58










Co-investors24
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24 co-investors across 112 shared portfolio companies — who they back alongside, and how often they lead.
Venture Capital ×18 · Hedge Fund ×2 · Corporate VC ×1 · 34 shared rounds
Investment History
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