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Department of Defense NAICS 541211 and PSC R499 contractors

Offices of Certified Public Accountants. SUPPORT- PROFESSIONAL: OTHER. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541211 · PSC R499
Last updated: April 8, 2026

Visible recipients

4

Mapped obligations

$1,610,515,276

State overlap

1

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541211 and PSC R499

Guidehouse LLP

Mc Lean, VA

Guidehouse LLP is a federal category business profile based in Mc Lean, VA. The current public data layer shows $140,750,981 in visible federal obligations across 132 awards or transactions. Department of State appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R499.

$1,398,290,450

Catapult Consultants LLC

Fredericksburg, VA

Catapult Consultants LLC is a federal category business profile based in Fredericksburg, VA. The current public data layer shows $73,414,716 in visible federal obligations across 5 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R703.

$18,797,348

Sehlke Consulting LLC

Vienna, VA

Sehlke Consulting LLC is a federal category business profile based in Vienna, VA. The current public data layer shows $42,603,555 in visible federal obligations across 79 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541511 (Custom Computer Programming Services). The profile also shows meaningful product and service activity in PSC R499.

$180,560,325

Aoc Solutions, INC

Fairfax, VA

Aoc Solutions, INC is a federal category business profile based in Fairfax, VA. The current public data layer shows $10,305,193 in visible federal obligations across 23 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R710.

$12,867,153