Michael Baker Corporation, through its operating subsidiaries, provides engineering design and related consulting services for public and private sector clients worldwide. Its business principally is in the United States of America. The Company operates in two segments: Transportation and Federal. On May 3, 2010, the Company acquired 100% of the outstanding shares of The LPA Group Incorporated and substantially all of its subsidiaries and affiliates (LPA), an engineering, architectural and planning firm specializing primarily in the planning and design of airports, highways, bridges and other transportation infrastructure. The Transportation segment provides services for Transportation, Aviation, and Rail & Transit markets, and the Federal segment provides services for Defense, Environmental, Architecture, Geospatial Information Technology, Homeland Security, Municipal and Civil, Pipelines and Utilities and Water markets.