Department of the Interior NAICS 541715 and PSC R499 contractors

Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology). SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of the Interior.

Department of the Interior · NAICS 541715 · PSC R499

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$10,804,518,241

State overlap

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541715 and PSC R499

Caci, Inc. - Federal

Chantilly, VA

Chantilly, VA | 1,121 awards | Top agency Department of Defense | NAICS 541512

$2,696,600,497

Kbr Wyle Services, LLC

Fulton, MD

Fulton, MD | 645 awards | Top agency Department of Defense | NAICS 541712

$6,068,834,377

Cherokee Nation Technology Solutions LLC

Tulsa, OK

Tulsa, OK | 20 awards | Top agency Department of Defense | NAICS 541620

$236,130,647

Systems Planning And Analysis, Inc.

Alexandria, VA

Alexandria, VA | 238 awards | Top agency Department of Defense | NAICS 541330

$733,398,831

Tatitlek Federal Services LLC

Anchorage, AK

Anchorage, AK | 230 awards | Top agency Department of State | NAICS 541611

$304,585,260

Janus Research Group, LLC

Evans, GA

Evans, GA | 103 awards | Top agency General Services Administration | NAICS 611430

$159,161,122

Mantech Srs Technologies, Inc.

Herndon, VA

Herndon, VA | 76 awards | Top agency Department of Defense | NAICS 541330

$392,179,999

The Mil Corporation

Bowie, MD

Bowie, MD | 189 awards | Top agency Department of Defense | NAICS 541519

$147,144,516

Digital Infuzion, LLC

Rockville, MD

Rockville, MD | 42 awards | Top agency Department of Health and Human Services | NAICS 541512

$65,860,231

Southland Industries

Sterling, VA

Sterling, VA | 15 awards | Top agency Department of Defense | NAICS 541330

$622,761

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