Welcome to The Dorgham Group

EnCon is a full service, privately owned consulting engineering, quality control and testing and inspection services firm. EnCon provides engineering services to industry and the public sector in the Washington and Baltimore areas.

Alliance Construction Solutions, LLC is a privately owned general contractor and construction management company focused on safety, quality and client satisfaction. With numerous projects successfully completed for the various government jurisdictions like the Metropolitan Washington Airport Authority (MWAA), at both Dulles International Airport and Reagan National Airport, and US Air Force at Andrews AFB. 

PSI offers top-quality electrical construction services, as well as telecommunications network cabling, to clients throughout the Mid-Atlantic region. Our customers span the private and public sectors, including government agencies, defense contractors, biotech firms, data centers, educational institutions, financial institutions, corporate headquarters, health care providers, and laboratories. And, for more than a decade, Power Services has been consistently ranked by the Washington Business Journal among the largest electrical contractors in the region.

Sullyfield Investment, LLC is a real estate investment firm specializing in the acquisition, development, and management of commercial properties throughout the Mid-Atlantic region.

Shen Valle Logistics offers over 320,000 square feet of logistics and warehousing center in the Shenandoah Valley situated over a 145 acre lot with potential build-to-suit expansion of up to 2,000,000 square feet.

The D-Ranch is a private equestrian facility located in Aldie, Virginia, situated over 100 acres of rolling hills, bordered by Goose Creek and little river with indoor arena and two riding rings. Tenant offers boarding, riding lessons, competitions, and tours.