Virtualization data management company Actifio has raised $50 million in Series D funding led by Technology Crossover Ventures (TCV) with participation from existing investors Andreessen Horowitz, ATV, Greylock Partners Israel and North Bridge Venture Partners. This fund brings the enterprise company's total venture investment to $107.5 million. According to a Wall Street Journal report, Actifio was valued at $500 million and is considering an IPO.