Richard Nathan

AOC Key Solutions, Inc. provides business consulting services. Its services include proposal development, capture and market strategy services, coaching and market assessment for government contractors. The company was founded by James K. McCarthy in 1983 and is headquartered in Chantilly, VA.

KeyStone Solutions LLC provides wealth management and business consulting services. It also offers investment banking and EB-5 immigration services. The company was founded by Roger W. Christoph in 2008 and is headquartered in Lake Forest, IL.

American Operations Corp. offers professional services. Its core competencies include intelligence, surveillance and reconnaissance, information technology, telecommunications and cyber, logistics and facilities management, energy and environment, homeland security and defense and solutions and advisory services and program management. The company was founded by L. Frank Field in 1983 and is headquartered in Chantilly, VA.

Ensycon International provides management consulting services. The private company is based in Alexandria.

Mason & Hanger Corp. provides architectural, engineering and construction services. The company was founded on August 27, 2001 and is headquartered in Philadelphia, PA.

Part of Battelle Memorial Institute, Battelle Corp. provides atmospheric research. The company is based in Columbus, OH. Lewis F. von Thaer has been the CEO of the company since 2017.