Agency + NAICS page

Department of Homeland Security NAICS 541330 contractors

Engineering Services. Use this buyer-scoped industry page to see which visible contractors sit closest to this NAICS lane under Department of Homeland Security.

Agency: Department of Homeland Security
Last updated: April 6, 2026

Visible recipients

88

Mapped obligations

$217,943,326,428

Top PSC links

4

Top recipients

Visible recipients tied to Department of Homeland Security and NAICS 541330

Cognosante Cds, LLC

Arlington, VA

Cognosante Cds, LLC is a federal category business profile based in Arlington, VA. The current public data layer shows $5,384,027 in visible federal obligations across 20 awards or transactions. Department of Homeland Security 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 R499.

$14,845,254

Peraton Services & Solutions Inc.

Herndon, VA

Peraton Services & Solutions Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows $4,474,420 in visible federal obligations across 17 awards or transactions. National Aeronautics and Space Administration 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.

$1,220,501,128

Alutiiq Technical Services LLC

Anchorage, AK

Alutiiq Technical Services LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $2,382,317 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 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R706.

$105,109,081

Ironarch Technology LLC

Arlington, VA

Ironarch Technology LLC is a federal category business profile based in Arlington, VA. The current public data layer shows $2,285,492 in visible federal obligations across 42 awards or transactions. Department of Veterans Affairs 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.

$19,080,384

Ameresco Federal Solutions, Inc.

Farmingham, MA

Ameresco Federal Solutions, Inc. is a federal category business profile based in Farmingham, MA. The current public data layer shows $427,461 in visible federal obligations across 18 awards or transactions. Department of Homeland Security 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 B540.

$63,987,464

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.

$1,976,196,216

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.

$1,729,162,542

Northrop Grumman Technical Services, Inc.

Mclean, VA

Northrop Grumman Technical Services, Inc. is a federal category business profile based in Mclean, VA. The current public data layer shows -$1,436,690 in visible federal obligations across 26 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 488190 (Other Support Activities for Air Transportation). The profile also shows meaningful product and service activity in PSC J015.

$1,379,528,635
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