Agency + NAICS page

Department of Energy NAICS 541990 contractors

All Other Professional, Scientific, and Technical Services. Use this buyer-scoped industry page to see which visible contractors sit closest to this NAICS lane under Department of Energy.

Agency: Department of Energy
Last updated: April 8, 2026

Visible recipients

18

Mapped obligations

$2,044,876,764

Top PSC links

4

Top recipients

Visible recipients tied to Department of Energy and NAICS 541990

Aerojet Rocketdyne Of De, INC

Canoga Park, CA

Aerojet Rocketdyne Of De, INC is a federal category business profile based in Canoga Park, CA. The current public data layer shows $293,779,964 in visible federal obligations across 32 awards or transactions. National Aeronautics and Space 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 AB94.

$693,605,017

Aar Government Services, Inc.

Wood Dale, IL

Aar Government Services, Inc. is a federal category business profile based in Wood Dale, IL. The current public data layer shows $254,953,145 in visible federal obligations across 429 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 488190 (Other Support Activities for Air Transportation). The profile also shows meaningful product and service activity in PSC J015.

$28,645,341

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.

$7,661,197

Chenega Government Consulting, LLC

Chesapeake, VA

Chenega Government Consulting, LLC is a federal 8a program participant profile based in Chesapeake, VA. The current public data layer shows $250,368,522 in visible federal obligations across 5 awards or transactions. Department of Energy 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 R499.

$49,395,109

Peraton Risk Decision Inc.

Loveland, CO

Peraton Risk Decision Inc. is a federal category business profile based in Loveland, CO. The current public data layer shows $210,620,024 in visible federal obligations across 54 awards or transactions. Office of Personnel Management appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561611 (Investigation and Personal Background Check Services). The profile also shows meaningful product and service activity in PSC R422.

$13,322,159

Akima Systems Engineering LLC

Herndon, VA

Akima Systems Engineering LLC is a federal 8a program participant profile based in Herndon, VA. The current public data layer shows $76,312,079 in visible federal obligations across 232 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.

$16,838,740

Ensco INC

Vienna, VA

Ensco INC is a federal category business profile based in Vienna, VA. The current public data layer shows $71,897,543 in visible federal obligations across 124 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 AR16.

$171,128,594

Black & Veatch Special Projects Corp.

Overland Park, KS

Black & Veatch Special Projects Corp. is a federal category business profile based in Overland Park, KS. The current public data layer shows $67,934,975 in visible federal obligations across 145 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 C214.

$445,375,044

Attainx Inc.

Herndon, VA

Attainx Inc. is a federal 8a program participant profile based in Herndon, VA. The current public data layer shows $47,757,591 in visible federal obligations across 182 awards or transactions. Department of Agriculture appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541511 (Custom Computer Programming Services). The profile also shows meaningful product and service activity in PSC R499.

$3,416,766

Peraton Labs INC

Basking Ridge, NJ

Peraton Labs INC is a federal category business profile based in Basking Ridge, NJ. The current public data layer shows $37,461,975 in visible federal obligations across 73 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 AD92.

$23,564,064
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