YC 6 startups
YC Summer 2005
Every company from Y Combinator's Summer 2005 batch.
Last updated
2026-09-02
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Reddit
The frontpage of the internet.
CommunitySocial MediaSocial
Open Jobs 154
Team 2,000
Founded 2012
CL
Clickfacts
Clickfacts — B2B
Open Jobs —
Team 11
Founded 2012
Kiko
We're the best online calendar solution to ever exist. Period.
Calendar
Open Jobs —
Team —
Founded 2012
Loopt
Loopt — Consumer
Open Jobs —
Team 11
Founded 2012
PA
Parakey
Parakey — B2B
Open Jobs —
Team 2
Founded 2012
TE
TextPayMe
TextPayMe — Fintech
Open Jobs —
Team 11
Founded 2012
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Twitch
A global community creating the future of live entertainment.
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Team 2,000
Founded 2012
CopyCat
AI agents built for insurance.
Artificial IntelligenceInsurance
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Team 2
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Supabase
Build in a weekend. Scale to millions.
Developer ToolsOpen SourceBig Data
Open Jobs 57
Team 120
Founded 2020
GiveAway
Community driven marketplace for used things
MarketplaceSocial Network
Open Jobs —
Team 1
Founded 2020