YC Accelerator Program
Join an intensive three-month program with mentorship, investor introductions and network support to scale early-stage startups.
Ask about this →YC
Y Combinator
Global startup accelerator that helps early‑stage founders scale through a three‑month program, mentorship and network
Helps founders refine product-market fit, sharpen go-to-market plans and prepare for investors; supported Stripe as it scaled to a $107B company.
- Engagement models
- Project, Workshop or training, Advisory board
- Founded
- 2005
- Works in
- Global, United States
- Ideal client stage
- Seed, Pre-seed, Series A
- Ideal client size
- 1 to 10 people, 11 to 50 people
- Pricing
- YC invests $500k per company: $125k for 7% on a post-money safe and another $375k on an uncapped safe with an MFN.
Services
What you can hire Y Combinator for
Startup School (online training)
Access online training that teaches startup fundamentals and founder education for early-stage teams.
Ask about this →Founder community & networking (Bookface & alumni)
Plug into Bookface and an alumni network for peer support, introductions and deal flow among founders and investors.
Ask about this →Fundraising support & legal documents
Receive help preparing for fundraising and standardized legal documents to improve investor readiness.
Ask about this →Talent & hiring platform (Work at a Startup)
Post roles and connect with startup job-seekers through the Work at a Startup hiring platform.
Ask about this →Visibility & launch support (Startup Directory & Launch YC)
Get launch support and directory listings via the Startup Directory and Launch YC to present your startup to the YC network.
Ask about this →Fit
Is Y Combinator right for you?
A good fit if you are
- A seed-stage startup, a pre-seed startup or a Series A startup with 1 to 10 people or 11 to 50 people
- In technology, software, internet, startups, venture capital or corporate innovation
- Based anywhere: they work globally
How they engage
- Project
- A defined scope with one outcome.
- Workshop or training
- Sessions that teach your team a method or a skill.
- Advisory board
- Regular guidance from a seat on your board or advisory board.
Proof points
OpenAI growth
OpenAI growth
Sam built OpenAI into a $500B company.
Case study on ycombinator.com ↗Airbnb IPO
Airbnb IPO
Airbnb went public in 2020 at an over $100B valuation.
Case study on ycombinator.com ↗Stripe scale
Stripe scale
Stripe is now the internet's $107B payments backbone.
Case study on ycombinator.com ↗Coinbase IPO
Coinbase IPO
Coinbase went public in 2021 at a $86B valuation.
Case study on ycombinator.com ↗DoorDash IPO
DoorDash IPO
DoorDash went public in 2020 at a valuation of $39B.
Case study on ycombinator.com ↗Dropbox IPO
Dropbox IPO
Dropbox had the biggest tech IPO of 2018 at a $9B valuation.
Case study on ycombinator.com ↗About Y Combinator
Known for a network-driven, founder-first approach, Y Combinator is hired to turn early traction into fundable, scalable startups through hands-on mentorship and investor access. Buyers engage it to accelerate growth, sharpen go-to-market execution and prepare for high-profile exits; its track record includes guiding Airbnb to a public listing at an over $100B valuation.
All sources checked 2 Oct 2026.
Questions and answers
How do I contact Y Combinator?
Use Contact Y Combinator on this page and describe what you need. Haycion passes your request to Y Combinator, and they reply to the email you give.
Have a project for Y Combinator?
Send them a request. They reply by email.
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