Y Combinator

Make something people want.
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Y Combinator is an American seed accelerator launched in March 2005 and was used to launch over 2,000 companies including Dropbox, Airbnb, Stripe, Reddit, Optimizely, Zenefits, Docker, DoorDash, Mixpanel, Heroku.
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Launch YC
The launchpad for YC startups
2021 YC Top Companies List
Discover top YC companies by valuation.
YC Directory
Discover YC companies

What people like about Y Combinator

, , and 28 others highly rated Y Combinator for its company mission, community and customer support. Read reviews
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Y Combinator's news

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  • Launch
    On Launch YC, you can sort by industry, batch, votes, and launch date to uncover products that are most relevant to you. Vote for the newly launched startups to help them climb up the leaderboard, try out product demos, and learn about the founding team.
  • Announcement
    #3 Product of the day
    YC Directory ranked 3rd Product of the day for Sep 22, 2020 with 472 upvotes and 25 comments
    Sep 22, 2020
  • Launch
    Discover YC companies by batch, industry, region, and company size, as well as Black, Latinx, and women founders.
  • Launch

    Where women in tech can talk about whatever we want.

  • Announcement
    #4 Product of the day
    YC World ranked 4th Product of the day for Sep 12, 2017 with 571 upvotes and 24 comments
    Sep 12, 2017
  • Launch

    YC World is a map that shows where YC companies are from. It’s based on the location of the founders before applying for YC.

  • Launch
    Jack Altman interviews his brother, Sam
  • Launch
    Y Combinator's Sam Altman and Elon on SpaceX, Tesla, & more