Agency + NAICS page

Department of Homeland Security NAICS 541519 contractors

Other Computer Related 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

60

Mapped obligations

$39,549,051,503

Top PSC links

4

Top recipients

Visible recipients tied to Department of Homeland Security and NAICS 541519

General Dynamics Information Technology, Inc.

Falls Church, VA

General Dynamics Information Technology, Inc. is a federal category business profile based in Falls Church, VA. The current public data layer shows $4,247,568,500 in visible federal obligations across 3,214 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.

$6,517,599,597

Deloitte Consulting LLP

Arlington, VA

Deloitte Consulting LLP is a federal category business profile based in Arlington, VA. The current public data layer shows $2,418,891,705 in visible federal obligations across 1,842 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 R408.

$1,279,037,678

Leidos, Inc.

Reston, VA

Leidos, Inc. is a federal category business profile based in Reston, VA. The current public data layer shows $2,338,754,223 in visible federal obligations across 9,802 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.

$6,498,315,047

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.

$808,659,304

Mantech Systems Engineering Corporation

Fairfax, VA

Mantech Systems Engineering Corporation is a federal category business profile based in Fairfax, VA. The current public data layer shows $1,150,010,370 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 R425.

$6,410,536

Salient Crgt, Inc.

Fairfax, VA

Salient Crgt, Inc. is a federal category business profile based in Fairfax, VA. The current public data layer shows $894,438,156 in visible federal obligations across 254 awards or transactions. General Services Administration 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.

$163,129,185

Peraton Enterprise Solutions LLC

Chantilly, VA

Peraton Enterprise Solutions LLC is a federal category business profile based in Chantilly, VA. The current public data layer shows $829,926,286 in visible federal obligations across 419 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.

$10,015,949,111

Hms Technologies, Inc.

Martinsburg, WV

Hms Technologies, Inc. is a federal category business profile based in Martinsburg, WV. The current public data layer shows $580,580,357 in visible federal obligations across 5 awards or transactions. Department of Veterans Affairs 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.

$105,668,185

Ecs Federal, LLC

Fairfax, VA

Ecs Federal, LLC is a federal category business profile based in Fairfax, VA. The current public data layer shows $553,440,366 in visible federal obligations across 405 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.

$397,962,896

L3harris Global Communications, Inc.

Rochester, NY

L3harris Global Communications, Inc. is a federal category business profile based in Rochester, NY. The current public data layer shows $541,621,632 in visible federal obligations across 161 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 334290 (Other Communications Equipment Manufacturing). The profile also shows meaningful product and service activity in PSC 5810.

$2,353,728
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