Department of the Interior NAICS 541611 and PSC D399 contractors

Administrative Management and General Management Consulting Services. IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Cross-code overlap under Department of the Interior.

Department of the Interior · NAICS 541611 · PSC D399

Last updated: April 9, 2026

Visible recipients

Mapped obligations

$12,850,235,654

State overlap

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541611 and PSC D399

Ardent Management Consulting, LLC

Vienna, VA

Vienna, VA | 82 awards | Top agency Department of Homeland Security | NAICS 541511

$141,239,351

Octo Consulting Group LLC

Reston, VA

Reston, VA | 35 awards | Top agency Department of Defense | NAICS 541512

$219,941,193

Netimpact Strategies INC

Herndon, VA

Herndon, VA | 45 awards | Top agency Department of Defense | NAICS 541519

$142,221,038

Spry Methods, Inc.

Mc Lean, VA

Mc Lean, VA | 47 awards | Top agency Department of Defense | NAICS 541512

$55,717,525

Icf Incorporated

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Health and Human Services | NAICS 541611

$3,209,868,189

Koniag Services, Inc.

Anchorage, AK

Anchorage, AK | 17 awards | Top agency Social Security Administration | NAICS 541512

$116,949,070

Asm Research, LLC

Fairfax, VA

Fairfax, VA | 16 awards | Top agency Department of Veterans Affairs | NAICS 541512

$540,940,319

Medical Science & Computing, LLC

Rockville, MD

Rockville, MD | 184 awards | Top agency Department of Health and Human Services | NAICS 541512

$436,405,507

Koniag Information Security Services LLC

Anchorage, AK

Anchorage, AK | 5 awards | Top agency Department of Defense | NAICS 541512

$55,446,402

Page 2 of 2Prev 1 2

Agency profile

Loading buyer-level contractor and category paths