Department of Energy NAICS 541330 and PSC R499 contractors

Engineering Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Energy.

Department of Energy · NAICS 541330 · PSC R499

Last updated: April 13, 2026

Visible recipients

Mapped obligations

$50,942,281,578

State overlap

Top recipients

Visible recipients in the Department of Energy overlap of NAICS 541330 and PSC R499

The Boeing Company

Saint Louis, MO

Saint Louis, MO | 1,195 awards | Top agency Department of Defense | NAICS 336411

$41,067,866,307

Battelle Memorial Institute

Richland, WA

Richland, WA | 103 awards | Top agency Department of Energy | NAICS 541710

$1,463,325,824

Parsons Government Services Inc.

Centreville, VA

Centreville, VA | 598 awards | Top agency Department of Defense | NAICS 541712

$4,420,146,536

Amentum Technical Services LLC

Aiken, SC

Aiken, SC | 6 awards | Top agency Department of Transportation | NAICS 541330

$325,612,731

Akima Systems Engineering LLC

Herndon, VA

Herndon, VA | 233 awards | Top agency Department of Defense | NAICS 541512

$106,069,328

Ensco INC

Vienna, VA

Vienna, VA | 124 awards | Top agency Department of Defense | NAICS 541712

$438,051,185

Noresco, LLC

Westborough, MA

Westborough, MA | 81 awards | Top agency Department of Defense | NAICS 541330

$1,489,852,432

Edgewater Federal Solutions, Inc.

Frederick, MD

Frederick, MD | 41 awards | Top agency Department of Energy | NAICS 541519

$137,127,927

Sentar, Inc.

Huntsville, AL

Huntsville, AL | 67 awards | Top agency Department of Defense | NAICS 541330

$334,252,881

Wsp USA Solutions INC

Arlington, VA

Arlington, VA | 228 awards | Top agency Department of Defense | NAICS 541330

$155,040,496

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