Skip to main content

Brett A. Castellat represents government contractors on a multitude of matters dealing with federal and state-level procurements. Brett handles protests before the Government Accountability Office (GAO), Small Business Administration (SBA), and Court of Federal Claims in bid-related disputes involving primarily firms dealing with the Department of Defense, Department of Homeland Security, Department of State, and other federal agencies. Brett also handles matters related to the Contracts Disputes Act and disputes between prime contractors and subcontractors. Brett has also assisted in matters related to issues regarding restrictive covenants, such as non-solicitation clauses, between contractors. Brett has also assisted in representation involving regulatory compliance under various regulatory frameworks, including the International Traffic in Arms Regulations, the General Data Protection Regulations, and various ethics related regulatory frameworks, such as those dealing with organizational conflicts of interest and post-employment restrictions, including at the state-level.


  • Federal Acquisition Regulation (FAR)
  • Various State-level Procurement Regulation Schemes



  • Prevailed in October of 2018 on a GAO protest related to a Defense Information Systems Agency’s (DISA) Systems Engineering, Technology and Innovation (SETI) solicitation.
  • Intern, Hon. Robert Humphreys, Court of Appeals of Virginia, 2015

Recognition & Leadership

  • Member, Virginia Maritime Association, 2018
  • Member, Virginia Ship Repair Association, 2017


  • J.D., cum laude, Washington and Lee University School of Law, 2017
    • Member, German Law Journal
  • B.S., magna cum laude, Old Dominion University, 2014
  • Virginia