Department of Defense NAICS 541690 contractors

Other Scientific and Technical Consulting Services. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$1,998,403,338

Visible recipients tied to Department of Defense and NAICS 541690

Intrepid Solutions And Services, LLC

Ashburn, VA

Ashburn, VA | 31 awards | Top agency Department of Defense | NAICS 541513

$5,788,037

Zantech It Services, Inc.

Reston, VA

Reston, VA | 51 awards | Top agency Department of Homeland Security | NAICS 541611

$28,470,003

Bevilacqua Research Corporation

Huntsville, AL

Huntsville, AL | 41 awards | Top agency Department of Defense | NAICS 541330

$9,530,488

Insight Policy Research, Inc.

Arlington, VA

Arlington, VA | 23 awards | Top agency Department of Health and Human Services | NAICS 541611

$3,215,327

Brown And Caldwell

San Diego, CA

San Diego, CA | 5 awards | Top agency Department of Defense | NAICS 541330

$43,398

Altarum Institute

Novi, MI

Novi, MI | 62 awards | Top agency Department of Health and Human Services | NAICS 541611

$14,962,191

Chenega Infinity, LLC

Chantilly, VA

Chantilly, VA | 20 awards | Top agency Department of Homeland Security | NAICS 561612

$1,554,530

Ares Corporation

Mclean, VA

Mclean, VA | 16 awards | Top agency National Aeronautics and Space Administration | NAICS 541712

$53,839,972

Audacious Inquiry LLC

Catonsville, MD

Catonsville, MD | 21 awards | Top agency Department of Health and Human Services | NAICS 541513

$5,000,665

Watterson Construction CO

Anchorage, AK

Anchorage, AK | 13 awards | Top agency Department of Defense | NAICS 236220

$1,600

Page 5 of 6Prev 1 2 3 4 5 6 Next

Agency profile

Loading buyer-level contractor and category paths