Insurance broker Willis Group Holdings Ltd. has doubled its revenues and geographic presence in North America with the completion of its $2.1 billion acquisition of Hilb Rogal & Hobbs Company (HRH), one of the world's largest insurance and risk management intermediaries.

Willis announced a definitive agreement to acquire HRH — the largest such transaction in the insurance broking industry over the past decade — on June 8, 2008. The addition of HRH expands Willis' local presence from 70 to 210 locations in North America, and strengthens the company's position in a number of important US markets.