
Y Combinator
Venture Capital
Growth-stage fund investing in the most elite Y Combinator alumni companies, providing lifecycle capital from early through late stage.
Mountain View, United States · 4293+ investments · 276 portfolio companies
Growth
Late Stage
Pre-Seed
Seed
Early Stage
E-Commerce
Fintech
SaaS
Industrials
Artificial Intelligence
Biotech
Digital Health
Developer Tools
Crypto & Web3
- Headquarters
- Mountain View, United States
- Founded
- 2015
- Website
- ycombinator.com
- AUM
- $700.0M
- Portfolio Companies
- 276
- Total Investments
- 4,293
- Last Investment
- Aug 2026
- Geographic Focus
- United States, Global
Investment Thesis
Invests in the most elite YC alumni companies at growth and late stages, taking pro-rata rights and making lifecycle investments of $20M–$100M to support YC portfolio companies beyond the accelerator.
Y Combinator is a Venture Capital firm based in Mountain View, United States. It has made 4293 investments in E-Commerce and Fintech, including careCycle, Assembly and Casca.
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