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Department of Homeland Security NAICS 541511 and PSC R499 contractors

Custom Computer Programming Services. SUPPORT- PROFESSIONAL: OTHER. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Homeland Security.

Department of Homeland Security · NAICS 541511 · PSC R499
Last updated: April 8, 2026

Visible recipients

50

Mapped obligations

$37,722,466,021

State overlap

4

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541511 and PSC R499

Booz Allen Hamilton INC

Mclean, VA

Booz Allen Hamilton INC is a federal category business profile based in Mclean, VA. The current public data layer shows $5,575,467,868 in visible federal obligations across 3,955 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 R499.

$20,485,896,565

Salient Crgt, Inc.

Fairfax, VA

Salient Crgt, Inc. is a federal category business profile based in Fairfax, VA. The current public data layer shows $925,225,987 in visible federal obligations across 255 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.

$1,231,374,806

Mantech Advanced Systems International, Inc.

Herndon, VA

Mantech Advanced Systems International, Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows $878,752,678 in visible federal obligations across 684 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.

$2,089,205,388

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.

$354,642,623

Ecs Federal, LLC

Fairfax, VA

Ecs Federal, LLC is a federal category business profile based in Fairfax, VA. The current public data layer shows $553,486,130 in visible federal obligations across 401 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.

$1,315,127,239

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.

$546,736,943

Atlas Research LLC

Washington, DC

Atlas Research LLC is a federal category business profile based in Washington, DC. The current public data layer shows $295,094,625 in visible federal obligations across 16 awards or transactions. Department of Veterans Affairs 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 R408.

$76,526,460

Peraton Technology Services Inc.

Chantilly, VA

Peraton Technology Services Inc. is a federal category business profile based in Chantilly, VA. The current public data layer shows $162,149,325 in visible federal obligations across 259 awards or transactions. General Services 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 R499.

$997,973,807

Guidehouse LLP

Mc Lean, VA

Guidehouse LLP is a federal category business profile based in Mc Lean, VA. The current public data layer shows $140,750,981 in visible federal obligations across 132 awards or transactions. Department of State 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.

$1,380,434,037

Securigence LLC

Leesburg, VA

Securigence LLC is a federal alaskan native corporation owned firm profile based in Leesburg, VA. The current public data layer shows $134,804,914 in visible federal obligations across 71 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 D301.

$614,232,475
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