Fundraising FoxLos Altos Hills · Seed · 3 people tracked
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Fund manager profile
s16 is a venture fund manager based in Los Altos Hills. SEC filings show 5 venture funds on record, most recently s16 Fund III-A, LP filed July 2026.
Source: SEC EDGAR Form D filings. Firm website data not yet available.
Team · 3 people
from public directoriesWhat they invest in
from 3 of 4 portfolio companiesAI & Machine Learning ×2Enterprise Software ×2Healthtech ×2Developer Tools ×1Digital Health ×1SaaS ×1
HQs:United States×2
Investments · 4 tracked
founders shown can be your intro path
21st.dev provides a library of thousands of components and templates from the community for developers to use in building applications.
Developer ToolsEnterprise SoftwareSan Francisco, US
Serafim Korablev(CEO / co-founder)inSergey Bunas(Founder)in
Co-investorsPioneerTRAC (Third Round Analytics Capital)Transpose Platform ManagementY CombinatorAAL VCAltaIR Capital+6 more
Awell provides a platform for building, automating, and orchestrating clinical care flows, using drag-and-drop or natural language AI prompts to design, deploy, and optimize workflows.
AI & Machine LearningDigital HealthHealthtechSaaS
Co-investorsKAYALocalGlobeMoonfire VenturesOctopus Ventures
Collectly provides AI-powered automation for healthcare revenue cycle management and patient financial engagement.
AI & Machine LearningEnterprise SoftwareHealthtechSan Francisco, US
Levon Brutyan(Founder/CEO)inMax Mizotin(Founder)in
Co-investorsCabra VCGoAhead VenturesGranatus VenturesInvariantes FundSapphire VenturesY Combinator+9 more
Hazard monitoring app aggregating official announcements about potentially dangerous consumer products.
Co-investorsRKKVCAUDEO VENTURESLong Run CapitalPoint72 VenturesThird PrimeValar Ventures Llc
Portfolio news
latest coverage across their companies21st · ycombinator.com · Mar 16, 2026
Frequently asked questions
- What stage does s16 invest at?
- s16 invests at the Seed stage.
- What sectors does s16 focus on?
- s16 focuses on Enterprise Software.
- Where is s16 located?
- s16 is headquartered in Los Altos Hills, US.
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