Biba

Acquired by Amazon
on November 23, 2016
Messaging
Undisclosed

Wand Labs

Acquired by Microsoft
on June 16, 2016
Messaging
Undisclosed

ZeroPush

Acquired by Twitter
on October 26, 2015
Messaging
Undisclosed

Looksery

Acquired by Snap Inc
on September 15, 2015
Messaging
$150.6m

Hall

Acquired by Atlassian
on May 6, 2015
Messaging
$20m

MessageMe

Acquired by Yahoo
on October 3, 2014
Messaging
$30m

Emu Messenger

Acquired by Google
on August 6, 2014
Messaging
Undisclosed

Yammer

Acquired by Microsoft
on June 25, 2012
Messaging
$1.2bn

HipChat

Acquired by Atlassian
on March 7, 2012
Messaging
Undisclosed

Rapportive

Acquired by Linkedin
on February 7, 2012
Messaging
$15m

TalkBin

Acquired by Google
on April 25, 2011
Messaging
Undisclosed

Beluga

Acquired by Facebook
on March 1, 2011
Messaging
Undisclosed

Parlano

Acquired by Microsoft
on August 29, 2007
Messaging
Undisclosed

Colloquis

Acquired by Microsoft
on October 12, 2006
Messaging
Undisclosed

MessageCast

Acquired by Microsoft
on May 11, 2005
Messaging
Undisclosed

MyQuest

Acquired by Yahoo
on March 1, 2000
Messaging
Undisclosed