Actian, a Big Data company backed by Garnett & Helfrich Capital, has acquired ParAccel. ParAccel, based in Campbell, CA, is an analytics platform provider that serves Fortune 1000 clients in digital media, retail, financial services, healthcare and government end markets. The company had received several rounds of funding going back to 2007 from the likes of Amazon.com, Menlo Ventures and Mohr Davidow Ventures, among others.