S. Robert Kallenbaugh

RBF Consulting, Inc. provides engineering, planning and construction management services for public and private sector projects. Its services include CCTV and pipeline inspection, construction management, energy development, environmental, federal and military services, geographic information systems, land development, landscape architecture, planning, public works, regulatory services, structures, surface water, surveying geomatics, sustainable and LEED, transportation and traffic, urban design studio, water resources and watershed management. The company was founded in 1944 and is headquartered in Moon Township, PA.

Michael Baker International LLC engages in the provision engineering and consulting services. It offers design, planning, architectural, environmental, construction, and program management. The company was founded by Michael Baker Jr. in 1940 and is headquartered in Pittsburgh, PA.

Michael Baker International Holdco Corp. provides engineering and technical services to the industrial and government sectors. The company was founded by Michael Baker, Jr. in 1940 and is headquartered in Pittsburgh, PA.