Department of the Treasury NAICS 541330 contractors

Engineering Services. Contractors in this NAICS lane under Department of the Treasury.

Agency: Department of the Treasury

Last updated: April 19, 2026

Visible recipients

Mapped obligations

$22,980,263,013

Visible recipients tied to Department of the Treasury and NAICS 541330

Amentum Services, Inc.

Chantilly, VA

Chantilly, VA | 1,909 awards | Top agency Department of Defense | NAICS 561210

$4,263,441,029

Deloitte Consulting LLP

Arlington, VA

Arlington, VA | 1,829 awards | Top agency Department of Defense | NAICS 541512

$1,864,358,266

Vectrus Systems LLC

Colorado Springs, CO

Colorado Springs, CO | 1,224 awards | Top agency Department of Defense | NAICS 561210

$1,113,822,030

Cherokee Nation

Tahlequah, OK

Tahlequah, OK | 454 awards | Top agency Department of Health and Human Services | NAICS 541330

$1,018,938,772

Tatitlek Training Services, Inc.

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 561210

$130,130,224

Dlt Solutions, LLC

Herndon, VA

Herndon, VA | 614 awards | Top agency Department of Defense | NAICS 541519

$95,197,591

Caci Technologies, LLC

Chantilly, VA

Chantilly, VA | 222 awards | Top agency Department of Defense | NAICS 541330

$7,991,710,259

Peraton Technology Services Inc.

Chantilly, VA

Chantilly, VA | 259 awards | Top agency General Services Administration | NAICS 541330

$843,327,747

Halvik, LLC

Vienna, VA

Vienna, VA | 202 awards | Top agency Department of Defense | NAICS 541330

$249,261,231

American Systems Corporation

Mclean, VA

Mclean, VA | 295 awards | Top agency Department of Defense | NAICS 541330

$786,859,951

Page 1 of 51 2 3 4 5 Next

Agency profile

Loading buyer-level contractor and category paths