Y Combinator

📍 United States🗓 Founded 2005👥 8,865 employees💰 Last funded Mar 2026
Y Combinator is the leading startup accelerator for entrepreneurs. Since 2005, YC has invested in over 5,400 companies, including Airbnb, Dropbox, Stripe, Reddit, Instacart, DoorDash, and Coinbase. Today, YC has built the most powerful startup community in the world alongside the products and programs to support founders for the life of their company.
49
Total investors
1
Early stage
0
Mid stage
3
Late stage
2005
Founded

Investors

49 investors
All
Early stage
Mid stage
Late stage
Early stage· 1
?
Investor in YCombinator
early stage
Sep 2006
Show all 49 investors ↓
Investor geography8 countries
United States
21
France
19
United Kingdom
2
Egypt
1
China
1
Germany
1
Investor activity2006–2026 · investors recorded per year
200612011120141201512016120174201842019320204202132023220252020261
Recent (last 2y)Earlier
Frequently asked questions
Who invested in Y Combinator?
Y Combinator has 49 investors on record on gritt.io, including 1 early-stage backers and 3 late-stage investors.
When did Y Combinator last raise funding?
The most recent investment in Y Combinator recorded on gritt.io was in March 2026.
When was Y Combinator founded?
Y Combinator was founded in 2005.
What industry is Y Combinator in?
Y Combinator operates in Venture Capital and Private Equity Principals. Find similar Venture Capital and Private Equity Principals investors on gritt.io.
Where is Y Combinator based?
Y Combinator is headquartered in United States.