Mu Sigma is a company that helps businesses analyze data and make decisions. The company has raised $108 million from Sequoia Capital and General Atlantic LLC. This is the largest round of private-equity financing in the analytic services industry. Mu Sigma will be using the funding to add about 600 to 700 employees. General Atlantic CEO William Ford will be joining the Mu Sigma board of directors. Mu Sigma’s revenues will be increasing 35-40% in 2012. The money raised will also be used for buying out early investors. [BusinessWeek]

Jive is a social enterprise company that has filed for an IPO. The company expects to raise over $100 million from the IPO. At the high end of the price range per share, it would put Jive at a valuation of over $500 million.

Tumblr is a popular blogging service that has raised $85 million in a new round of funding. Tumblr is best known for simple blogging tools to post photos, videos, songs, etc. The investment in this round was led by Greylock Partners. Insight Venture Partners, the Chernin Group, Richard Branson, Spark Capital, Union Square Ventures, and Sequoia Capital also participated in this round.

Kai-Fu Lee is the former head of Google China. Lee has raised $180 million for his startup incubator company founded two years ago known as Innovation Works. Innovation Works is an early-stage accelerator company.

Jive Software has filed an S-1 with the SEC indicating that they plan to go public to raise $100 million in the offering. Jive Software provides a Facebook-like social network for enterprises for social collaboration purposes within a company. Features of their software include blogging, discussions, polls, etc.

Digital textbook startup Inkling has raised $17 million in funding to grow their company, which works with textbook publishers to create interactive iPad versions of their books. The funding comes from Tenaya Capital, Jafco Ventures, Sequoia Capital and Pearson Education. Inkling is already working with publishers like McGraw Hill and Pearson. [GigaOM]

Corporate social media management company Hearsay Social has raised $18 million. The company launched this past February. Hearsay provides franchise companies and businesses with local chapters the ability to monitor social media across the whole organization.

MoboTap, the company behind the Dolphin Browser, has raised $10 million in Series A funding in a round led by Sequoia Capital. Matrix Partners also participated in this round. Sequoia partner Kui Zhou will be joining the board of directors at MoboTap.