Heysan

Free messaging on mobile phones

y-combinatorWinter 2007Community Messaging 🇺🇸 San Francisco

heysan.com 𝕏 Twitter

Acquired

Gustaf Alstromer, Marie Brattberg +2 · 4 co-founders

2026Acquired

Acquired

Co-founders

current

Stage

Acquired

Profile coverage3 of 8 · missing Team size, Funding, Signals, Customers, Stack / tools · last run 8/11/2026

About

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.

4 founders

Gustaf Alstromer

Founder/CEO

General Partner at YC

in LinkedIn 𝕏 @gustaf

Marie Brattberg

Founder/Product Manager

Chief Strategy Officer, Recorded Future

in LinkedIn

Pär Lindhe

Founder/Product Development / UX lead

2024- Creating Camthis: Multi-cam live event streaming and highlights of any event by just using smartphones. Co-founded Heysan - A mobile cross-protocol chat app and community - Eventually aquired Later created Candid - a SaaS for recruiters to communicate with the employer during headhunting projects. Active with paying high retention customers.

in LinkedIn

Parham Michael Ossareh

Founder/developer, tech dude

making things.

in LinkedIn