Yammer was founded by David Sacks and Adam Pisoni.
Yammer started design and development efforts in January 2008.
Yammer purchased the yammer.com domain name in August 2008.
Yammer launched publicly in September 2008.
Yammer was incorporated as Yammer Inc. in September 2008.
Yammer raised over $140 million in 5 rounds of funding.
Yammer accepted acquisition offer from Microsoft in June 2012.
Yammer was headquartered in San Francisco, USA.
The Year 1 is available in a book put together by one of the members of our team. Click on the thumbnail below to find more details about the book.