Department of Health and Human Services PSC B599 contractors

SPECIAL STUDIES/ANALYSIS- OTHER. Contractors in this PSC lane under Department of Health and Human Services.

Agency: Department of Health and Human Services

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$435,213,716

Visible recipients tied to Department of Health and Human Services and PSC B599

Confederated Tribes Of Colville Reservation

Nespelem, WA

Nespelem, WA | 230 awards | Top agency Department of the Interior | NAICS 921150

$1,394,005

Mathematica Inc.

Princeton, NJ

Princeton, NJ | 183 awards | Top agency Department of Health and Human Services | NAICS 541720

$256,682,241

Three Affiliated Tribes

New Town, ND

New Town, ND | 160 awards | Top agency Department of Health and Human Services | NAICS 922140

$29,316

Standing Rock Sioux Tribe

Fort Yates, ND

Fort Yates, ND | 161 awards | Top agency Department of the Interior | NAICS 561990

$199,064

Janus Research Group, LLC

Evans, GA

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

$145,065,064

Cheyenne River Sioux Tribe

Eagle Butte, SD

Eagle Butte, SD | 168 awards | Top agency Department of the Interior | NAICS 562111

$190,173

Yakama Nation

Toppenish, WA

Toppenish, WA | 20 awards | Top agency Department of the Interior | NAICS 541990

$853,660

Nez Perce Tribe

Lapwai, ID

Lapwai, ID | 187 awards | Top agency Department of Health and Human Services | NAICS 541990

$1,224,879

Insight Policy Research, Inc.

Arlington, VA

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

$29,598,274

Ukpeagvik Inupiat Corporation

Barrow, AK

Barrow, AK | 11 awards | Top agency Department of the Treasury | NAICS 531120

-$22,960

Agency profile

Loading buyer-level contractor and category paths