Agency + NAICS page

Department of Defense NAICS 561621 contractors

Security Systems Services (except Locksmiths). 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

19

Mapped obligations

$2,283,440,774

Top PSC links

4

Top recipients

Visible recipients tied to Department of Defense and NAICS 561621

Advanced It Concepts, LLC

Orlando, FL

Advanced It Concepts, LLC is a federal 8a program participant profile based in Orlando, FL. The current public data layer shows $19,005,268 in visible federal obligations across 18 awards or transactions. Department of Defense 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.

$8,830,674

Olgoonik Solutions LLC

Anchorage, AK

Olgoonik Solutions LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $17,097,482 in visible federal obligations across 76 awards or transactions. Department of State 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.

$24,467,011

Chenega Security International California

Chantilly, VA

Chenega Security International California is a federal alaskan native corporation owned firm profile based in Chantilly, VA. The current public data layer shows $15,708,482 in visible federal obligations across 1 awards or transactions. Department of the Interior 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.

$2,180,404

Chenega Security International, LLC

Chantilly, VA

Chenega Security International, LLC is a federal 8a program participant profile based in Chantilly, VA. The current public data layer shows $14,093,569 in visible federal obligations across 28 awards or transactions. Department of Defense 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.

$40,270,100

Agency Management Concepts INC

Oakton, VA

Agency Management Concepts INC is a federal 8a program participant profile based in Oakton, VA. The current public data layer shows $2,993,604 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 561621 (Security Systems Services (except Locksmiths)). The profile also shows meaningful product and service activity in PSC N063.

$1,132,238

Chenega Infinity, LLC

Chantilly, VA

Chenega Infinity, LLC is a federal 8a program participant profile based in Chantilly, VA. The current public data layer shows $2,336,910 in visible federal obligations across 10 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.

$22,637,972

Alutiiq Advanced Security Solutions LLC

Anchorage, AK

Alutiiq Advanced Security Solutions LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $2,032,674 in visible federal obligations across 6 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.

$4,427,512

Alutiiq Business Services, LLC

Anchorage, AK

Alutiiq Business Services, LLC is a federal alaskan native corporation owned firm profile based in Anchorage, AK. The current public data layer shows $735,659 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 611519 (Other Technical and Trade Schools). The profile also shows meaningful product and service activity in PSC R499.

$46,168,307

M.c. Dean Europe Gmbh

Leinfelden-echterdingen

M.c. Dean Europe Gmbh is a federal category business profile based in Leinfelden-echterdingen. The current public data layer shows $174,057 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 335999 (All Other Miscellaneous Electrical Equipment and Component Manufacturing). The profile also shows meaningful product and service activity in PSC 5999.

$129,832
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