T. Wood Parker

Professional Services Council is a non-profit company that provides policy leadership, advocacy, business intelligence, executive networking, and branding and exposure services to its members since 1972. The company is based in Arlington, VA and has subsidiaries in the United States. The company's recent activities include submitting comments on CISA's draft secure software common attestation form, signing comments on rare earth element rule, and releasing its fifth annual federal business forecast scorecard. The company also offers various events and resources for government contracting. The company's CEO is David J. Berteau, who has been in the position since 2016.

PricewaterhouseCoopers LLC provides assurance, tax and advisory services. Its services include audit and assurance, consulting, deals, human resources, legal, tax, and family business. The firm also offers accountability, risk management, structuring, mergers and acquisitions, and performance and process improvement. The company was founded in 1998 and is headquartered in Buffalo, NY.

Engility Corp. provides systems engineering and advisory services. It delivers national security and public safety solutions to the intelligence community, department of defence and civilian agencies of the federal government. The firm operates in several parts of the United States. The company was founded in 1966 and is headquartered in Chantilly, VA.