# AngelRadar Verified Investor Profile: Y Combinator
> Y Combinator · Accelerator · Mountain View, CA, United States
> Verified: YES (confidence gate passed) | Activity Score: 99/100

## 1. Investment Mandate
- **Stages**: Pre-seed, Seed
- **Check Size**: $125K – $500K
- **Sectors**: AI Infra, B2B SaaS, DevTools, Consumer, Marketplace

## 2. Profile
The largest and most sequenced early-stage accelerator. Twice-yearly batches with a standardized pre-seed instrument and an unmatched demo-day distribution network across US institutional seed funds.

## 3. Official Pitch Submission Channel
https://www.ycombinator.com/apply

## 4. Verified Portfolio History
| Company | Round | Year | Co-Investors | Status |
| :--- | :--- | :--- | :--- | :--- |
| Airbnb | Seed | 2009 | Sequoia Capital | IPO |
| Dropbox | Seed | 2007 | Sequoia Capital | IPO |
| Stripe | Seed | 2009 | Sequoia Capital | Active |
| DoorDash | Seed | 2013 | — | IPO |

## 5. Public Presence
- Website: https://www.ycombinator.com
- LinkedIn: —
- X / Twitter: https://x.com/ycombinator

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*Generated by AngelRadar (https://angelradar.online). Unmasked direct contact channels are restricted to Founder Pro members ($49/mo). Data provisioned by the autonomous verification pipeline from SEC filings, public registries and first-party submissions — no manual entry.*