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Department of Energy NAICS 541330 and PSC R425 contractors

Engineering Services. SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Energy.

Department of Energy · NAICS 541330 · PSC R425
Last updated: April 3, 2026

Visible recipients

9

Mapped obligations

$9,467,571,841

State overlap

4

Top recipients

Visible recipients in the Department of Energy overlap of NAICS 541330 and PSC R425

Parsons Government Services Inc.

Centreville, VA

Parsons Government Services Inc. is a federal category business profile based in Centreville, VA. The current public data layer shows $927,567,231 in visible federal obligations across 601 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 R425.

$6,207,098,846

Alutiiq Pacific, LLC

Anchorage, AK

Alutiiq Pacific, LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $569,362,070 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 R425.

$147,607,894

Amentum Technical Services LLC

Aiken, SC

Amentum Technical Services LLC is a federal category business profile based in Aiken, SC. The current public data layer shows $221,963,528 in visible federal obligations across 7 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 R499.

$225,508,374

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 235 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.

$173,893,471

Noresco, LLC

Westborough, MA

Noresco, LLC is a federal category business profile based in Westborough, MA. The current public data layer shows $68,094,007 in visible federal obligations across 81 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 R499.

$1,416,802,579

Textron Aviation INC

Wichita, KS

Textron Aviation INC is a federal category business profile based in Wichita, KS. The current public data layer shows $66,140,227 in visible federal obligations across 72 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 1510.

$15,843,716

Parsons Government Services International Inc.

Pasadena, CA

Parsons Government Services International Inc. is a federal category business profile based in Pasadena, CA. The current public data layer shows $19,324,124 in visible federal obligations across 46 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 R425.

$169,918,355

Amentum Environment & Energy, Inc.

Aiken, SC

Amentum Environment & Energy, Inc. is a federal category business profile based in Aiken, SC. The current public data layer shows $5,404,004 in visible federal obligations across 37 awards or transactions. Department of Energy 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.

$614,468,092

Peraton Aerospace & Defense Inc.

Huntsville, AL

Peraton Aerospace & Defense Inc. is a federal category business profile based in Huntsville, AL. The current public data layer shows $1,359,998 in visible federal obligations across 34 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 R425.

$496,430,514