Hill International, Inc. (Hill), formerly Arpeggio Acquisition Corporation, provides fee-based project management and construction claims services to clients worldwide, but primarily in the United States, Europe, the Middle East and Asia/Pacific. Hill operates through two segments: the Project Management Group and the Construction Claims Group. On August 31, 2006, Hill International S.A., the Companys wholly owned subsidiary, acquired 96.5% of the outstanding shares of James R. Knowles (Holdings) PLC (Knowles). Hill International S.A. acquired the remaining shares during the fiscal year ended December 30, 2006. Knowles is a construction claims consulting and dispute resolution company with offices worldwide, headquartered in Daresbury, United Kingdom. On January 23, 2006, Hill International (UK) Ltd. a wholly owned subsidiary of , the Company purchased all of the outstanding common stock of The Pickavance Group Ltd.