The company's founding was in 1948, in New York City, with its original name being variously reported as being Robert Half Inc., Robert Half Finance & Accounting, and Robert Half Personnel Agency. Robert Half, most recently, Robert Half International, is an American human resource consulting firm based in Menlo Park, California. It is a member of the S&P 500, and is credited as being the world's first and largest accounting and finance staffing firm, with over 325 locations worldwide.