Agency + NAICS + PSC page

Department of Defense NAICS 541330 and PSC AD24 contractors

Engineering Services. R&D- DEFENSE OTHER: SERVICES (ENGINEERING DEVELOPMENT). Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541330 · PSC AD24
Last updated: April 8, 2026

Visible recipients

9

Mapped obligations

$7,438,373,710

State overlap

4

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541330 and PSC AD24

Mantech Telecommunications And Information Systems Corporation

Fairfax, VA

Mantech Telecommunications And Information Systems Corporation is a federal category business profile based in Fairfax, VA. The current public data layer shows $3,297,715,310 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 1345.

$2,498,697,100

The Aerospace Corporation

El Segundo, CA

The Aerospace Corporation is a federal category business profile based in El Segundo, CA. The current public data layer shows $830,309,545 in visible federal obligations across 527 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)). The profile also shows meaningful product and service activity in PSC AR25.

$652,251,738

Noblis, Inc.

Reston, VA

Noblis, Inc. is a federal category business profile based in Reston, VA. The current public data layer shows $263,857,681 in visible federal obligations across 372 awards or transactions. Department of Transportation 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.

$2,260,213,515

Noblis Msd LLC

Philadelphia, PA

Noblis Msd LLC is a federal category business profile based in Philadelphia, PA. The current public data layer shows $70,510,868 in visible federal obligations across 481 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.

$1,318,946,062

Exp Federal Inc.

Chicago, IL

Exp Federal Inc. is a federal category business profile based in Chicago, IL. The current public data layer shows $33,712,210 in visible federal obligations across 62 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 N059.

$221,992,265

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.

$62,218

Ai Signal Research INC

Huntsville, AL

Ai Signal Research INC is a federal asian pacific american owned business profile based in Huntsville, AL. The current public data layer shows $10,827,706 in visible federal obligations across 33 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541712 (Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)). The profile also shows meaningful product and service activity in PSC AD96.

$163,367,320

Bevilacqua Research Corporation

Huntsville, AL

Bevilacqua Research Corporation is a federal category business profile based in Huntsville, AL. The current public data layer shows $4,812,421 in visible federal obligations across 41 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.

$260,754,947

Abbott On Call, Inc.

Vienna, VA

Abbott On Call, Inc. is a federal category business profile based in Vienna, VA. The current public data layer shows $2,793,351 in visible federal obligations across 22 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.

$62,088,545