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

Fedwriters, Inc.

Fairfax, VA

Fedwriters, Inc. is a federal 8a program participant profile based in Fairfax, VA. The current public data layer shows $27,437,211 in visible federal obligations across 253 awards or transactions. Department of Commerce 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 R699.

$19,249,749

Mantech Security Technologies Corporation

Fairfax, VA

Mantech Security Technologies Corporation is a federal category business profile based in Fairfax, VA. The current public data layer shows $23,482,290 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 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC D399.

$31,109

Kihomac INC

Reston, VA

Kihomac INC is a federal asian pacific american owned business profile based in Reston, VA. The current public data layer shows $23,005,263 in visible federal obligations across 151 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.

$338,226,798

General Dynamics Mission Systems, Inc.

Taunton, MA

General Dynamics Mission Systems, Inc. is a federal category business profile based in Taunton, MA. The current public data layer shows $22,625,141 in visible federal obligations across 87 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 5895.

$6,677,492,251

Dt Professional Services, LLC

Moorpark, CA

Dt Professional Services, LLC is a federal 8a program participant profile based in Moorpark, CA. The current public data layer shows $13,423,477 in visible federal obligations across 59 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.

$23,761,023

Mcr Federal, LLC

Alexandria, VA

Mcr Federal, LLC is a federal category business profile based in Alexandria, VA. The current public data layer shows $12,227,728 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 541712 (Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)). The profile also shows meaningful product and service activity in PSC R425.

$117,846,495

Aecom Services, LLC

Arlington, VA

Aecom Services, LLC is a federal category business profile based in Arlington, VA. The current public data layer shows $7,907,100 in visible federal obligations across 82 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 C219.

$201,522,263

Barbaricum LLC

Washington, DC

Barbaricum LLC is a federal category business profile based in Washington, DC. The current public data layer shows $7,769,347 in visible federal obligations across 101 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 339999 (All Other Miscellaneous Manufacturing). The profile also shows meaningful product and service activity in PSC R499.

$32,256,003

Aveshka, Inc.

Vienna, VA

Aveshka, Inc. is a federal category business profile based in Vienna, VA. The current public data layer shows $6,937,419 in visible federal obligations across 62 awards or transactions. Department of Health and Human Services 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 R699.

$4,005,073

Venesco LLC

Chantilly, VA

Venesco LLC is a federal 8a program participant profile based in Chantilly, VA. The current public data layer shows $6,566,861 in visible federal obligations across 64 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.

$43,118,761
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