Y Combinator
Y Combinator is an accelerator based in Mountain View, United States, focused on Pre-Seed and Seed startups across sectors. This profile covers its focus and how founders can get in front of it in 2026.
Y Combinator is a startup accelerator that invests in a wide range of startups.
- Investment focus
- Generalist
- Investment stages
- Pre-SeedSeed
- Location
- Mountain View, United States
- Founded
- 2005
- Team size
- 51-100
- Portfolio companies
- 5,000+
About Y Combinator
Y Combinator is a startup accelerator that provides funding and mentorship to early-stage companies. It offers a program where startups receive guidance from experienced entrepreneurs and investors. The organization helps founders in their business models and develop their products. Y Combinator serves industries such as technology, healthcare, and finance.
Source: the organization's public company profile.
What Y Combinator costs you
Y Combinator invests $500K in total: $125K for 7% of your company on a post-money SAFE, plus $375K on an uncapped SAFE with a most favored nation clause, which converts in your next priced round. The $125K for 7% implies a post-money valuation of roughly $1.8M. That is arithmetic on their standard deal as publicly reported, not a number Y Combinator quotes, and real offers vary.
How to pitch Y Combinator
The founders who hear back from Y Combinator lead with traction and a clear ask that matches its stage, not a generic mass email. Build a targeted, verified list, write a personalized note, and track who opens it, all in one place.
Connect with Y Combinator
About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Cite this page
Round Funded. "Y Combinator." Round Funded investor database, updated October 19, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/vc/y-combinator
Frequently Asked Questions
What does Y Combinator invest in?
Y Combinator is a generalist with no fixed sector focus. Match your stage before reaching out, then find similar active investors on Round Funded.
What stage does Y Combinator invest at?
Y Combinator focuses on Pre-Seed and Seed rounds. Lead with traction that fits the stage when you reach out.
Is Y Combinator still active?
Yes. Round Funded's research found that Y Combinator has made a new investment or run a new cohort since 2024. Reach out with a personalized pitch that fits its stage and focus, then track who opens it.
Where is Y Combinator based?
Y Combinator is based in Mountain View, United States. You can reach out from anywhere with a pitch that matches its focus.
How do I contact Y Combinator?
Unlock a verified email for Y Combinator and reach out with a personalized pitch on Round Funded. We show only deliverable contacts, so your outreach does not bounce.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.