MANASSAS, VA—BerkleyNet, a member company of W. R. Berkley Corp., has chosen to relocate its headquarters to Innovation Park — a move that keeps the company in Prince William County, much to local economic officials’ relief. After four or so renovations of its current office, BerkleyNet is now planning to start from scratch and build a 70,000-square foot facility. It will be located within the park at 9301 Innovation Dr., and it will deliver next year.