Y Combinator

Iconic seed accelerator + early-stage fund — Airbnb, Stripe, Dropbox, OpenAI

VC Accelerator 📍 Mountain View, CA Founded 2005

AUM

$7.0B

as of 2026-Q1

MID

Y Combinator was founded in 2005 by Paul Graham, Jessica Livingston, Robert Morris, and Trevor Blackwell. The most consequential accelerator in tech — alumni include Airbnb, Stripe, Dropbox, Coinbase, DoorDash, Twitch, and OpenAI. Garry Tan has been President since 2023.

Firm Profile

Firm Type

Subtype

Accelerator

Founded

2005

Mountain View, CA

Country

USA

Notable Partners

Garry Tan (President)Jared FriedmanMichael SeibelDiana Hu

Portfolio Companies (48)

Enriched 2026-07-24 · QuantLogix research

Stripe Venus Aerospace Blockchain.com Guild Education Enter Ambience Healthcare Charm Industrial Jetti Resources Outreach Current Stori Found SOURCE Inceptio Technology Unico Stan Public Aura World Labs PLACE Orange Retail Finance Crusoe Energy Systems Delfi Diagnostics Cohere Augment Customer.io Science Embark Sure Pitch (Business/Productivity Software)Turing Dune Analytics Motive Replicate Replit Kalshi Stoke SpaceAgricultureAI and MLConsumerDev ToolsFintechGovernmentReal EstateTransportOther SaaSNonprofitLogin

Investment Focus

Stages

Pre-seed · Seed

Sectors

Enterprise · Consumer · Fintech · Bio · AI

VCAcceleratorIconicSam Altman Era Alumni

Investor data reflects publicly disclosed AUM, fund sizes, and portfolio holdings as of 2026-Q1. Refreshed periodically.