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Y Combinator
Y Combinator

Y Combinator

Operating

Y Combinator is a leading startup accelerator and venture capital firm founded in 2005.

Location
Mountain View, CA, US
Founded
2005
Firm
Portfolio
Fundraising
Employees
News

Y Combinator is an American technology startup accelerator and venture capital firm launched in March 2005. It created a new model for funding early-stage startups by investing small amounts of seed capital in a large number of companies twice per year, providing founders with funding, mentorship, and resources through an intensive program.

Since its founding, Y Combinator has invested in over 5,400 companies, including iconic alumni such as Airbnb, Dropbox, Stripe, Reddit, Instacart, DoorDash, and Coinbase. The firm was founded by Paul Graham, Jessica Livingston, Robert Morris, and Trevor Blackwell, and operates from Mountain View, California, remaining the most prestigious and influential startup accelerator globally.

Y Combinator - Portfolio Snapshot

Portfolio activity breakdown across disclosed investments and stages

Total Investments4915
Current Portfolio Count3464
Total Portfolio Exits79

Top Investment Stages

Seed2505 (52.8%)
Pre-Seed1398 (29.5%)
Series Unknown445 (9.4%)
Series A287 (6.1%)
Series B108 (2.3%)

Stage Mix

Seed 53%Pre-Seed 29%Series Unknown 9%Series A 6%Series B 2%

Concentration shown as share of disclosed investments by stage.

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Y Combinator - Classification

Also Known As
  • Y Combinator Management, LLC
NAICS
  • 520000Finance and Insurance
  • 523000Securities, Commodity Contracts, and Other Financial Investments and Related Activities
  • 523900Other Financial Investment Activities
  • 523990All Other Financial Investment Activities
  • 523999Miscellaneous Financial Investment Activities
SIC
  • 6700Holding And Other Investment Offices
  • 6790Miscellaneous Investing
  • 6799Investors, Not Elsewhere Classified
Show 9 more industry codes
NAICS
  • 540000Professional, Scientific, and Technical Services
  • 525000Funds, Trusts, and Other Financial Vehicles
  • 541000Professional, Scientific, and Technical Services
  • 523910Miscellaneous Intermediation
  • 523940Portfolio Management and Investment Advice
SIC
  • 6000Depository Institutions
  • 7300Business Services
  • 6720Investment Offices
  • 6722Management Investment Offices, Open-end