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Y Combinator Overview
Y Combinator
Y Combinator is a startup accelerator that invests in a wide range of startups twice a year.
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Investor Intelligence
Investment Activity
Investor TypeAccelerator
TierNot Rated
Rank#1,190
Retail ROI0.10
Private ROI3.81
Total Investments45
Lead Investments5
Fundraising Rounds45
Co-Investors215
Latest RoundAug 9, 2026
LocationUnited States of America
Listed Assets3 / 37 · 8.1%
Investments Allocation
Co-Investors
NameCo-investmentsLatest Round
SSoma Capital
5 Rounds
Aug 22, 2023
GGoodwater
4 Rounds
Apr 16, 2026
AAndreessen Horowitz (a16z)
3 Rounds
May 21, 2026
DDigital Currency Group (DCG)
3 Rounds
Jun 20, 2025
LLightspeed Venture Partners
3 Rounds
May 21, 2026
OOrange DAO
3 Rounds
Jun 15, 2023
PPioneer Fund
3 Rounds
Jun 25, 2026
4468 Capital
2 Rounds
Mar 5, 2026
AArchetype
2 Rounds
Apr 4, 2023
BBenchmark
2 Rounds
May 21, 2026
DDraper Dragon
2 Rounds
Jun 1, 2022
GGlobal Founders Capital
2 Rounds
Aug 24, 2023
IIOSG Ventures
2 Rounds
Jul 1, 2017
KKleiner Perkins
2 Rounds
Mar 16, 2020
LLux Capital
2 Rounds
Aug 22, 2023
NNew Enterprise Associates
2 Rounds
Apr 16, 2026
NNFX
2 Rounds
Aug 11, 2025
NNVIDIA
2 Rounds
Sep 3, 2025
PPantera Capital
2 Rounds
Jun 25, 2026
RRebelFundVC
2 Rounds
May 27, 2026
Fundraising Rounds
5 rounds| Project | Stage | Category | Date | Raised | Pre-Valuation |
|---|---|---|---|---|---|
 Kalshi PreStocksKALSHI | Series D+ | Other | Nov 21, 2025 | $1.00B | $11.00B |
| AArqenARQ | Grant / Funding | Finance | Sep 14, 2022 | $5.00M | $50.00M ~ |
| Kalshi PreStocksKALSHI | Pre-Seed | Other | Jan 1, 2019 | $150.0K | $1.50M ~ |
 FilecoinFIL | Private Sale | Storage | Jul 1, 2017 | $52.00M | $1.50B |
| RRequestREQ | Seed | Blockchain Service | Mar 1, 2017 | — | — |
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