Top 100 Y Combinator Companies in 2026: Biggest YC Startups and Alumni
Quick Answer: Y Combinator has backed more than 5,600 startups since 2005, including Stripe, Airbnb, DoorDash, Coinbase, Instacart, Dropbox, Reddit, and Rippling. As of 2026, YC companies have a combined estimated portfolio value of more than $600 billion. This ranking compares 100 notable Y Combinator companies based on total disclosed funding raised. How does a …