Okena said Monday that it has raised $12.4 million in a second round of funding, led by GE Equity. Newbury Ventures, Solstice Capital, and previous investors APV Technology Partners and Thomvest International also participated in the round. Representatives from GE Equity, Newbury Ventures and Solstice Capital will receive seats on the company's board. Waltham, Mass.-based Okena develops security software for applications and Web-hosting systems. The company has raised a total of $16.7 million.