Department of the Interior NAICS 541720 contractors

Research and Development in the Social Sciences and Humanities. Contractors in this NAICS lane under Department of the Interior.

Agency: Department of the Interior

Last updated: April 19, 2026

Visible recipients

Mapped obligations

$907,431,425

Visible recipients tied to Department of the Interior and NAICS 541720

Confederated Tribes Of Colville Reservation

Nespelem, WA

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

$1,975,382

Pueblo Of Acoma

Pueblo Of Acoma, NM

Pueblo Of Acoma, NM | 103 awards | Top agency Department of Transportation | NAICS 541720

$460,507

Kawerak, Inc.

Nome, AK

Nome, AK | 100 awards | Top agency Department of the Interior | NAICS 541690

$20,000

Acumen LLC

Burlingame, CA

Burlingame, CA | 73 awards | Top agency Department of Health and Human Services | NAICS 541611

$312,128,470

Yakama Nation

Toppenish, WA

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

$906,764

The Lewin Group, Inc.

La Crosse, WI

La Crosse, WI | 82 awards | Top agency Department of Health and Human Services | NAICS 541720

$586,628,053

Nez Perce Tribe

Lapwai, ID

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

$1,152,564

Confederated Tribes Of Grand Ronde

Grand Ronde, OR

Grand Ronde, OR | 125 awards | Top agency Department of Health and Human Services | NAICS 541720

$221,055

Hopi Tribe

Kykotsmovi Village, AZ

Kykotsmovi Village, AZ | 112 awards | Top agency Department of the Interior | NAICS 541720

$1,463,864

Pueblo Of Jemez

Jemez Pueblo, NM

Jemez Pueblo, NM | 109 awards | Top agency Department of Health and Human Services | NAICS 115310

$23,360

Page 1 of 21 2 Next

Agency profile

Loading buyer-level contractor and category paths