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Department of the Interior NAICS 541990 and PSC R499 contractors in Virginia

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: OTHER. Use this deepest state-buyer cross-code page to see which visible contractors sit in the exact overlap of buyer, geography, industry, and product-service lane.

Virginia · Department of the Interior
Last updated: April 8, 2026

Visible recipients

12

Mapped obligations

$5,048,473,627

Cross-code depth

4 filters

Top recipients

Visible recipients tied to Department of the Interior, Virginia, NAICS 541990, and PSC R499

Caci Intelligence Solutions, LLC

Herndon, VA

Caci Intelligence Solutions, LLC is a federal category business profile based in Herndon, VA. The current public data layer shows $622,902,744 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 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC R423.

$315,500,795

Systems Planning And Analysis, Inc.

Alexandria, VA

Systems Planning And Analysis, Inc. is a federal category business profile based in Alexandria, VA. The current public data layer shows $300,519,048 in visible federal obligations across 238 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$829,892,978

Siemens Government Technologies INC

Arlington, VA

Siemens Government Technologies INC is a federal category business profile based in Arlington, VA. The current public data layer shows $111,989,171 in visible federal obligations across 227 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC N059.

$660,478,780

Akima Systems Engineering LLC

Herndon, VA

Akima Systems Engineering LLC is a federal 8a program participant profile based in Herndon, VA. The current public data layer shows $76,312,079 in visible federal obligations across 232 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC R425.

$38,590,052

Mantech Srs Technologies, Inc.

Herndon, VA

Mantech Srs Technologies, Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows $74,933,149 in visible federal obligations across 77 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$304,562,673

Calibre Systems INC

Alexandria, VA

Calibre Systems INC is a federal category business profile based in Alexandria, VA. The current public data layer shows $70,878,330 in visible federal obligations across 125 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC R499.

$1,689,933,529

Analytic Services Inc.

Arlington, VA

Analytic Services Inc. is a federal category business profile based in Arlington, VA. The current public data layer shows $69,503,700 in visible federal obligations across 91 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 R499.

$848,596,841

Inalab Consulting, Inc.

Fairfax, VA

Inalab Consulting, Inc. is a federal 8a program participant profile based in Fairfax, VA. The current public data layer shows $26,223,753 in visible federal obligations across 136 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R499.

$58,429,577

Chenega Professional & Technical Services LLC

Chesapeake, VA

Chenega Professional & Technical Services LLC is a federal 8a program participant profile based in Chesapeake, VA. The current public data layer shows $25,255,069 in visible federal obligations across 75 awards or transactions. Department of Defense 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.

$164,961,987

Goldbelt Nighthawk, LLC

Newport News, VA

Goldbelt Nighthawk, LLC is a federal 8a program participant profile based in Newport News, VA. The current public data layer shows $18,773,695 in visible federal obligations across 28 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541519 (Other Computer Related Services). The profile also shows meaningful product and service activity in PSC R425.

$33,208,520
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