In 1906, The George Hyman Construction Company began its construction operations in Washington, DC. Through competitiveness and a commitment to consistently meeting the needs of its clients, Hyman grew to become one of the nation's most experienced general contractors. In 1977, OMNI Construction was formed to respond to the demand for merit shop contracting by the private development community in the greater Washington, DC area. For the next 18 years, the two companies continued to grow and expand their services and capabilities. In 1996, Hyman and OMNI merged and operated as a private company, The Clark Construction Group, Inc., for nearly eight years. As of July 1, 2004, The Clark  Construction Group, Inc., converted its name and legal status to Clark Construction Group, LLC.

Clark Construction is one of the nation's largest general building contractors, as  ranked by Engineering News Record, a leading industry publication.  Clark  Construction's $2.0 + billion annual construction volume includes new and  renovation construction projects, for public/private clients including  convention/conference centers, educational facilities, hotels, multi-family housing,  garage facilities, railway stations, airports, urban office buildings, heavy/highway  projects, healthcare facilities, research laboratories,  correctional institutions, sports  facilities, water treatment plants, retail centers, corporate headquarters and  manufacturing plants.

Headquartered in Bethesda, Maryland, Clark Construction has nine regional offices  strategically located to serve the needs of its clients throughout the United States.  In  order to enhance Clark Construction's ability to meet the needs of its clients in terms  of cost, schedule and quality, Clark Construction employs a staff of over 1,100 fulltime professionals, in addition to 1,000 plus field personnel and tradespersons.