Agency + NAICS page

Department of Defense NAICS 561990 contractors

All Other Support 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

14

Mapped obligations

$2,015,586,012

Top PSC links

4

Top recipients

Visible recipients tied to Department of Defense and NAICS 561990

Bae Systems Global Combat Systems LTD

Barrow-in-furness, CUMBRIA

Bae Systems Global Combat Systems LTD is a federal category business profile based in Barrow-in-furness, CUMBRIA. The current public data layer shows $1,944,603,817 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 332420 (Metal Tank (Heavy Gauge) Manufacturing). The profile also shows meaningful product and service activity in PSC 1025.

$16,500,329

Cgi Federal Inc.

Fairfax, VA

Cgi Federal Inc. is a federal category business profile based in Fairfax, VA. The current public data layer shows $1,377,819,939 in visible federal obligations across 1,056 awards or transactions. Department of State 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.

$479,167,614

General Dynamics Land Systems Inc.

Sterling Heights, MI

General Dynamics Land Systems Inc. is a federal category business profile based in Sterling Heights, MI. The current public data layer shows $1,228,836,608 in visible federal obligations across 826 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 336992 (Military Armored Vehicle, Tank, and Tank Component Manufacturing). The profile also shows meaningful product and service activity in PSC 2350.

$328,494,248

L3harris Technologies Integrated Systems L.p.

Greenville, TX

L3harris Technologies Integrated Systems L.p. is a federal category business profile based in Greenville, TX. The current public data layer shows $1,056,928,745 in visible federal obligations across 402 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 336413 (Other Aircraft Parts and Auxiliary Equipment Manufacturing). The profile also shows meaningful product and service activity in PSC 5865.

$767,916,168

Del-jen, Inc.

Clarksville, TN

Del-jen, Inc. is a federal category business profile based in Clarksville, TN. The current public data layer shows $532,305,116 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 S216.

$23,096,927

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.

$140,532,860

Chenega Global Protection, LLC

Chantilly, VA

Chenega Global Protection, LLC is a federal 8a program participant profile based in Chantilly, VA. The current public data layer shows $187,152,746 in visible federal obligations across 377 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.

$135,580,441

Icf Consulting Group, Inc.

Reston, VA

Icf Consulting Group, Inc. is a federal category business profile based in Reston, VA. The current public data layer shows $116,023,152 in visible federal obligations across 5 awards or transactions. Office of Personnel Management 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 U001.

$40,171

Olgoonik Federal, LLC

Anchorage, AK

Olgoonik Federal, LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $82,183,012 in visible federal obligations across 133 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 493110 (General Warehousing and Storage). The profile also shows meaningful product and service activity in PSC S215.

$73,308,921

Iem International, Inc.

Raleigh, NC

Iem International, Inc. is a federal category business profile based in Raleigh, NC. The current public data layer shows $20,749,459 in visible federal obligations across 39 awards or transactions. Department of Homeland Security 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.

$39,480,155
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