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Department of Defense NAICS 541990 and PSC R408 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT. 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 541990 · PSC R408
Last updated: April 8, 2026

Visible recipients

61

Mapped obligations

$19,571,695,531

State overlap

4

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC R408

Deloitte Consulting LLP

Arlington, VA

Deloitte Consulting LLP is a federal category business profile based in Arlington, VA. The current public data layer shows $2,409,075,725 in visible federal obligations across 1,829 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.

$7,224,308,120

Bearingpoint, Inc.

Dallas, TX

Bearingpoint, Inc. is a federal category business profile based in Dallas, TX. The current public data layer shows $1,534,132,715 in visible federal obligations across 5 awards or transactions. Agency for International Development appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC U009.

$735,143,542

Alion Science And Technology Corporation

Chicago, IL

Alion Science And Technology Corporation is a federal category business profile based in Chicago, IL. The current public data layer shows $1,391,195,185 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 541710 (Research and Development in the Physical, Engineering, and Life Sciences). The profile also shows meaningful product and service activity in PSC AZ12.

$136,762,259

Amentum Government Services, Inc.

Chantilly, VA

Amentum Government Services, Inc. is a federal category business profile based in Chantilly, VA. The current public data layer shows $1,102,374,198 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 811118 (Other Automotive Mechanical and Electrical Repair and Maintenance). The profile also shows meaningful product and service activity in PSC J023.

$499,403,484

Modern Technology Solutions, Inc.

Alexandria, VA

Modern Technology Solutions, Inc. is a federal category business profile based in Alexandria, VA. The current public data layer shows $429,318,638 in visible federal obligations across 285 awards or transactions. General Services Administration 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 R425.

$171,392,603

Amentum National Security Programs, INC

Chantilly, VA

Amentum National Security Programs, INC is a federal category business profile based in Chantilly, VA. The current public data layer shows $402,038,105 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 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC R499.

$220,910,943

Linquest Corporation

Herndon, VA

Linquest Corporation is a federal category business profile based in Herndon, VA. The current public data layer shows $317,004,468 in visible federal obligations across 249 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 R425.

$390,655,617

Systems Planning And Analysis, Inc.

Alexandria, VA

Systems Planning And Analysis, Inc. is a federal category business profile based in Alexandria, VA. The current public data layer shows $300,519,048 in visible federal obligations across 238 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.

$640,503,544

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.

$770,200,138

Aecom Energy & Construction, Inc.

Greenwood Village, CO

Aecom Energy & Construction, Inc. is a federal category business profile based in Greenwood Village, CO. The current public data layer shows $254,563,037 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 237990 (Other Heavy and Civil Engineering Construction). The profile also shows meaningful product and service activity in PSC Z2KA.

$15,118,435
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