Agency + NAICS page

Department of Homeland Security NAICS 541512 contractors

Computer Systems Design 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

77

Mapped obligations

$139,426,619,068

Top PSC links

4

Top recipients

Visible recipients tied to Department of Homeland Security and NAICS 541512

Concept Plus, LLC

Fairfax, VA

Concept Plus, LLC is a federal 8a program participant profile based in Fairfax, VA. The current public data layer shows $31,091,746 in visible federal obligations across 68 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 DA01.

$86,648,157

Schneider Electric Buildings Americas, Inc.

Carrollton, TX

Schneider Electric Buildings Americas, Inc. is a federal category business profile based in Carrollton, TX. The current public data layer shows $30,783,317 in visible federal obligations across 54 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.

$73,598,592

Redhorse Corporation

Arlington, VA

Redhorse Corporation is a federal category business profile based in Arlington, VA. The current public data layer shows $30,311,976 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 611430 (Professional and Management Development Training). The profile also shows meaningful product and service activity in PSC R499.

$35,987,733

Mantech Gray Hawk Systems, Inc.

Falls Church, VA

Mantech Gray Hawk Systems, Inc. is a federal category business profile based in Falls Church, VA. The current public data layer shows $28,570,924 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.

$0

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.

$23,451,181

Pyramid Systems, Inc.

Fairfax, VA

Pyramid Systems, Inc. is a federal asian pacific american owned business profile based in Fairfax, VA. The current public data layer shows $19,348,361 in visible federal obligations across 44 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 D307.

$209,939,116

Harmonia Holdings Group, LLC

Mclean, VA

Harmonia Holdings Group, LLC is a federal category business profile based in Mclean, VA. The current public data layer shows $18,667,472 in visible federal obligations across 81 awards or transactions. Department of Agriculture 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 D302.

$118,317,939

General Atomics Electronic Systems, Inc.

San Diego, CA

General Atomics Electronic Systems, Inc. is a federal category business profile based in San Diego, CA. The current public data layer shows $18,128,783 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 334516 (Analytical Laboratory Instrument Manufacturing). The profile also shows meaningful product and service activity in PSC 6640.

$3,159,600

Sevatec LLC

Reston, VA

Sevatec LLC is a federal 8a program participant profile based in Reston, VA. The current public data layer shows $15,833,262 in visible federal obligations across 17 awards or transactions. Department of Homeland Security appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541519 (Other Computer Related Services). The profile also shows meaningful product and service activity in PSC D399.

$344,562,921

Sekon Enterprise, LLC

Vienna, VA

Sekon Enterprise, LLC is a federal black american owned business profile based in Vienna, VA. The current public data layer shows $15,419,408 in visible federal obligations across 24 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.

$387,220,768
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