Agency + NAICS page

Department of Defense NAICS 561612 contractors

Security Guards and Patrol Services. Use this buyer-scoped industry page to see which visible contractors sit closest to this NAICS lane under Department of Defense.

Agency: Department of Defense
Last updated: April 8, 2026

Visible recipients

37

Mapped obligations

$23,900,412,829

Top PSC links

4

Top recipients

Visible recipients tied to Department of Defense and NAICS 561612

Alutiiq International Solutions, LLC

Anchorage, AK

Alutiiq International Solutions, LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $655,714,507 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 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y119.

$22,352,836

Alutiiq Pacific, LLC

Anchorage, AK

Alutiiq Pacific, LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $569,362,070 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 561210 (Facilities Support Services). The profile also shows meaningful product and service activity in PSC R425.

$131,078,207

Paragon Systems INC

Herndon, VA

Paragon Systems INC is a federal category business profile based in Herndon, VA. The current public data layer shows $533,359,903 in visible federal obligations across 692 awards or transactions. Department of Homeland Security appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$6,978,847,160

Alutiiq 3sg, LLC

Anchorage, AK

Alutiiq 3sg, LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $494,878,495 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.

$90,343,805

Gardaworld Federal Services LLC

Arlington, VA

Gardaworld Federal Services LLC is a federal category business profile based in Arlington, VA. The current public data layer shows $456,899,288 in visible federal obligations across 72 awards or transactions. Department of State appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC R430.

$1,306,914,217

Ahtna Technical Services, Inc.

Anchorage, AK

Ahtna Technical Services, Inc. is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $454,842,495 in visible federal obligations across 5 awards or transactions. Department of Homeland Security appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$253,379,448

Mantech Mission, Cyber And Technology Solutions, Inc.

Fairfax, VA

Mantech Mission, Cyber And Technology Solutions, Inc. is a federal category business profile based in Fairfax, VA. The current public data layer shows $407,177,745 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 541690 (Other Scientific and Technical Consulting Services). The profile also shows meaningful product and service activity in PSC R499.

$30,541,517

Triple Canopy INC

Herndon, VA

Triple Canopy INC is a federal category business profile based in Herndon, VA. The current public data layer shows $370,722,968 in visible federal obligations across 334 awards or transactions. Department of State appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$5,961,697,959

Centerra Group, LLC

Herndon, VA

Centerra Group, LLC is a federal category business profile based in Herndon, VA. The current public data layer shows $305,938,174 in visible federal obligations across 143 awards or transactions. Department of Energy appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$4,605,706,516

Chenega Security & Support Solutions, LLC

Chantilly, VA

Chenega Security & Support Solutions, LLC is a federal alaskan native corporation owned firm profile based in Chantilly, VA. The current public data layer shows $284,751,584 in visible federal obligations across 5 awards or transactions. National Aeronautics and Space Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$284,751,584
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