Launched in 2008, with over five million users, Yammer will join the Microsoft Office Division but remain reporting to Yammer CEO David Sacks according to Microsoft’s press release.
“Yammer will continue to develop its standalone service and maintain its commitment to simplicity, innovation and cross-platform experiences,” the statement said.
The deal, which has been rumoured on social networks, will see Yammer offered alongside other free Microsoft services such as SharePoint, Office 365, Microsoft Dynamics and Skype.
“The acquisition of Yammer underscores our commitment to deliver technology that businesses need and people love,” said Microsoft CEO, Steve Ballmer.
Yammer offers free and paid services, with only 20 percent of its five million users paying for its service, the Microsoft deal provides security for the social network according to Sacks.
“We had a vision for how social networking could change the way we work. Joining Microsoft will accelerate that vision and give us access to the technologies, expertise and resources we’ll need to scale and innovate,” Sacks said.
The acquisition is yet to gain final regulatory approval.