Innogy Venture Capital sells 20% stake in Voith Hydro Ocean Current Technologies, maker of tidal turbine technology, to the majority shareholder Voith Hydro.

Diagnostics company Oxford Immunotec, backed by Dow Chemical Company and Kaiser Permanente Ventures, raises $62.8m in IPO.

Telecommunications company Century Link buys Intel-backed cloud computing and storage firm Tier 3 to build out portfolio of cloud services for enterprises and to "anchor its new CenturyLink Cloud Development Center."

Intel has acquired e-textbook publisher Kno, a portfolio company of Intel Capital.

Ingram Micro aims to accelerate growth into $40 billion market for e-commerce fulfillment services, through acquisition of Shipwire, a logistics services company backed by eBay and Newell Rubbermaid.