Dachis Group said Wednesday it closed $7.5 million in Series C funding led by Austin Ventures. Dachis Group, of New York, provides a big data social marketing analytics platform in market.

Handshakez has closed $3.6 million in venture capital financing. The Series A round was led by Austin Ventures with additional investment by First Round Capital, FLOODGATE, CrunchFund, Valhalla Partners and Thinktiv.

The file sharing and collaboration software developer Bloomfire has raised $8 million from return investors Austin Ventures and Redpoint Ventures. The two firms invested $10 million in the company in March 2012.

Social software startups providing products to businesses have been catching the eye of venture capitalists for some time. Thirty-eight of 55 companies identified by Jeremiah Owyang, a partner at the research firm Altimeter Group, received funding.

Asset International, which is backed by Austin Ventures, is buying Investor Economics.

Spredfast said it raised $18 million in a round led by OpenView Venture Partners and joined by existing investors Austin Ventures and InterWest Partners. The company said it saw 400% revenue growth in 2012 and a doubling of employee headcount.

Dell, the Texas-based technology company, will buy Credant Technologies, a provider of data protection solutions. Specifics of the deal were not publicized. The Texas-based startup’s backers include Intel Capital and Austin Ventures.

Magnablend, the Texas-based provider of custom chemical manufacturing and packaging solutions company, completed its deal to be acquired by Univar. Specifics of the transaction were not publicized. In May 2011, investors including TGF Management Corp., Austin Ventures and Cotton Creek Capital acquired Magnablend.

OutboundEngine has closed a $1.6 million Series A investment round. Floodgate, Austin Ventures, Silverton Partners and Capital Factory participated in this round of funding. OutboundEngine provides a hands-free marketing platform that puts marketing on autopilot.

Brett Hurt has joined Texas-based Austin Ventures as venture partner. Hurt is a seasoned entrepreneur who most recently led Bazaarvoice as CEO from Austin start up to a global, publicly-traded business with nearly 2,000 clients and nine offices worldwide.