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Department of Homeland Security NAICS 541330 and PSC R499 contractors in Maryland

Engineering 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.

Maryland · Department of Homeland Security
Last updated: April 6, 2026

Visible recipients

5

Mapped obligations

$18,901,887,386

Cross-code depth

4 filters

Top recipients

Visible recipients tied to Department of Homeland Security, Maryland, NAICS 541330, and PSC R499

Bae Systems Technology Solutions & Services Inc.

Rockville, MD

Bae Systems Technology Solutions & Services Inc. is a federal category business profile based in Rockville, MD. The current public data layer shows $1,184,458,491 in visible federal obligations across 1,291 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 L014.

$13,056,287,274

Asrc Federal Professional Services, LLC

Beltsville, MD

Asrc Federal Professional Services, LLC is a federal 8a program participant profile based in Beltsville, MD. The current public data layer shows $38,732,273 in visible federal obligations across 62 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561611 (Investigation and Personal Background Check Services). The profile also shows meaningful product and service activity in PSC R499.

$441,519,505

A Square Group LLC

Frederick, MD

A Square Group LLC is a federal category business profile based in Frederick, MD. The current public data layer shows $38,070,888 in visible federal obligations across 44 awards or transactions. Department of Health and Human Services 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 DA10.

$85,806,136

Lockheed Martin Services, LLC

Gaithersburg, MD

Lockheed Martin Services, LLC is a federal category business profile based in Gaithersburg, MD. The current public data layer shows -$306,294 in visible federal obligations across 5 awards or transactions. Department of Transportation 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 5820.

$2,940,371,732

Booz Allen Hamilton Engineering Services, LLC

Annapolis Junction, MD

Booz Allen Hamilton Engineering Services, LLC is a federal category business profile based in Annapolis Junction, MD. The current public data layer shows -$410,371 in visible federal obligations across 11 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 R414.

$2,377,902,739