Agency + NAICS page

Department of Defense NAICS 541330 contractors

Engineering 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 6, 2026

Visible recipients

186

Mapped obligations

$343,272,207,482

Top PSC links

4

Top recipients

Visible recipients tied to Department of Defense and NAICS 541330

Caci, Inc. - Federal

Chantilly, VA

Caci, Inc. - Federal is a federal category business profile based in Chantilly, VA. The current public data layer shows $3,203,901,382 in visible federal obligations across 1,150 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.

$4,754,629,221

Mantech Sensor Technologies, Inc.

Belcamp, MD

Mantech Sensor Technologies, Inc. is a federal category business profile based in Belcamp, MD. The current public data layer shows $3,187,563,450 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.

$3,186,560,546

Amentum Services, Inc.

Chantilly, VA

Amentum Services, Inc. is a federal category business profile based in Chantilly, VA. The current public data layer shows $3,053,461,383 in visible federal obligations across 1,914 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 J015.

$4,264,137,347

Huntington Ingalls INC

Newport News, VA

Huntington Ingalls INC is a federal category business profile based in Newport News, VA. The current public data layer shows $2,919,690,372 in visible federal obligations across 576 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 336611 (Ship Building and Repairing). The profile also shows meaningful product and service activity in PSC 1905.

$409,539,111

Deloitte Consulting LLP

Arlington, VA

Deloitte Consulting LLP is a federal category business profile based in Arlington, VA. The current public data layer shows $2,418,891,705 in visible federal obligations across 1,842 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.

$1,864,348,191

Leidos, Inc.

Reston, VA

Leidos, Inc. is a federal category business profile based in Reston, VA. The current public data layer shows $2,338,754,223 in visible federal obligations across 9,802 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.

$16,858,411,838

Loyal Source Government Services LLC

Orlando, FL

Loyal Source Government Services LLC is a federal category business profile based in Orlando, FL. The current public data layer shows $2,274,743,658 in visible federal obligations across 96 awards or transactions. Department of Veterans Affairs appears as the strongest visible awarding agency. Top industry concentration is in NAICS 621111 (Offices of Physicians (except Mental Health Specialists)). The profile also shows meaningful product and service activity in PSC Q403.

$36,264,045

Peraton Inc.

Herndon, VA

Peraton Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows $2,229,566,035 in visible federal obligations across 1,151 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.

$4,260,685,736

Battelle Memorial Institute

Richland, WA

Battelle Memorial Institute is a federal category business profile based in Richland, WA. The current public data layer shows $1,604,590,760 in visible federal obligations across 101 awards or transactions. Department of Energy appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541710 (Research and Development in the Physical, Engineering, and Life Sciences). The profile also shows meaningful product and service activity in PSC M181.

$971,040,247

Bell Textron INC

Fort Worth, TX

Bell Textron INC is a federal category business profile based in Fort Worth, TX. The current public data layer shows $1,563,980,343 in visible federal obligations across 1,341 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 336411 (Aircraft Manufacturing). The profile also shows meaningful product and service activity in PSC 1520.

$145,896,002
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