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Heysan

Acquired · Free messaging on mobile phones

8signal of 100 · rising 1
  • acquiredOutcome · YC, program pages, Acquisitions+4
  • went through YCProgram · this site+4

A sum of public facts, not a judgement and not investment advice.

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About Heysan

Heysan was a free mobile messaging and community based in San Francisco, California. Initially Heysan provided free messaging between phones and computers, bridging IM with SMS. The service expanded into launching a mobile community and has over 1 million users doing tens of million of monthly messages. In the summer of 2007 Heysan raised a seed round from Khosla Ventures and Atomico, the venture funds of Vinod Khosla and Niklas Zennstrom. Heysan was acquired by Good Technology in May 2009.

YC batch
W07 · Winter 2007
Status, per YC
Acquired
Category
Other
Location
San Francisco, CA, USA
Checked
6h ago

YC tags: Community, Messaging

Changes seen

WebsiteNov 2, 2026

Moved its website from heysan.com to none.

Website linkNov 2, 2026

Website link changed from http://heysan.com to none.

Heysan in W07: 14 companies, 7% AI

Heysan: questions

Which YC batch was Heysan in?

Heysan was in Y Combinator's Winter 2007 batch (W07).

Is Heysan still active?

Y Combinator lists Heysan as acquired.

Where is Heysan based?

Heysan lists San Francisco, CA, USA as its location on YC's directory.