Yammer Collects $25M

Yammer, the San Francisco-based maker of a Twitter-like messaging and microblogging service for enterprises, announced today that it has closed a $25 million Series C financing round. U.S. Venture Partners was in the lead, and existing investors Emergence Capital, Charles River Ventures, and Founders Fund also participated. Mamoon Hamid, a partner at U.S. Venture Partners, has joined Yammer’s board. The company says that the Yammer platform is now in use at 80 percent of Fortune 500 companies, and it plans to use the funds to triple the size of its engineering team and also build up its sales operation. The company has raised $40 million in venture cash altogether, including a $5 million round in March 2009 and a $10 million Series B round in February 2010.

Author: Wade Roush

Between 2007 and 2014, I was a staff editor for Xconomy in Boston and San Francisco. Since 2008 I've been writing a weekly opinion/review column called VOX: The Voice of Xperience. (From 2008 to 2013 the column was known as World Wide Wade.) I've been writing about science and technology professionally since 1994. Before joining Xconomy in 2007, I was a staff member at MIT’s Technology Review from 2001 to 2006, serving as senior editor, San Francisco bureau chief, and executive editor of TechnologyReview.com. Before that, I was the Boston bureau reporter for Science, managing editor of supercomputing publications at NASA Ames Research Center, and Web editor at e-book pioneer NuvoMedia. I have a B.A. in the history of science from Harvard College and a PhD in the history and social study of science and technology from MIT. I've published articles in Science, Technology Review, IEEE Spectrum, Encyclopaedia Brittanica, Technology and Culture, Alaska Airlines Magazine, and World Business, and I've been a guest of NPR, CNN, CNBC, NECN, WGBH and the PBS NewsHour. I'm a frequent conference participant and enjoy opportunities to moderate panel discussions and on-stage chats. My personal site: waderoush.com My social media coordinates: Twitter: @wroush Facebook: facebook.com/wade.roush LinkedIn: linkedin.com/in/waderoush Google+ : google.com/+WadeRoush YouTube: youtube.com/wroush1967 Flickr: flickr.com/photos/wroush/ Pinterest: pinterest.com/waderoush/