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Department of the Interior top contractors and award recipients

Abbreviation DOTI | 431 recipients | $33,467,029,400 mapped obligations | 4 active categories | Updated April 20, 2026

Abbreviation: DOTI

Last updated: April 20, 2026

431 visible recipients are connected to this agency profile.

$33,467,029,400 in mapped obligations are visible across the recipient set tied to this buyer.

4 high-signal NAICS lanes are attached to this agency page.

Visible recipients

431

Mapped obligations

$33,467,029,400

Active categories

Top recipients

Most visible recipients in this buyer context

211

Recipient

Ahtna Global LLC

Anchorage, AK | 92 awards | Top agency Department of Defense | NAICS 562910

$43,103,143

212

Recipient

Seminole Nation Of Oklahoma, The

Wewoka, OK | 143 awards | Top agency Department of Health and Human Services | NAICS 813311

$94,026,748

213

Recipient

Coushatta Tribe Of Louisiana

Elton, LA | 47 awards | Top agency Department of the Treasury | NAICS 922120

$20,570,291

214

Recipient

Stantec Consulting Services Inc.

Denver, CO | 138 awards | Top agency Department of Defense | NAICS 541330

$180,860,075

215

Recipient

Layton Construction Company, LLC

Sandy, UT | 3 awards | Top agency Department of Transportation | NAICS 236220

$12,500

216

Recipient

Quapaw Nation

Quapaw, OK | 90 awards | Top agency Environmental Protection Agency | NAICS 922160

$34,214,359

217

Recipient

Walker River Paiute Tribe

Schurz, NV | 83 awards | Top agency Department of Housing and Urban Development | NAICS 541330

$54,737,245

218

Recipient

Oneida Indian Nation

Oneida, NY | 39 awards | Top agency Department of the Treasury | NAICS 541810

$51,440,957

219

Recipient

Ardent Management Consulting, LLC

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

$13,879,250

220

Recipient

Fort Belknap Indian Community

Harlem, MT | 138 awards | Top agency Department of the Interior | NAICS 562119

$201,502,150

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State, industry, and service paths

States

Arizona

21 recipients · $15,262,564,994

Virginia

81 recipients · $10,447,770,800

Alaska

51 recipients · $4,752,935,687

California

35 recipients · $3,944,485,061

Texas

11 recipients · $2,682,797,920

Oklahoma

15 recipients · $2,569,091,446

NAICS

NAICS 541330

114 recipients · $39,781,929,483

NAICS 541712

33 recipients · $33,105,685,331

NAICS 336992

4 recipients · $31,674,931,995

NAICS 336411

5 recipients · $24,504,233,826

NAICS 541512

65 recipients · $23,928,201,577

NAICS 236220

69 recipients · $23,131,399,845

PSC

PSC R425

64 recipients · $37,456,056,091

PSC R499

127 recipients · $18,682,125,742

PSC 1550

2 recipients · $14,997,288,622

PSC J015

4 recipients · $14,639,619,197

PSC Y1PZ

8 recipients · $9,083,894,385

PSC D399

46 recipients · $8,218,966,973

Explore rankings

Ranking paths for Department of the Interior

Top Recipients Top Awards Top States Top NAICS Top PSC Arizona view Arizona + NAICS 541330 Arizona + PSC R425 NAICS 541330 + PSC R425 Arizona top NAICS Arizona top PSC NAICS 541330 → PSC PSC R425 → NAICS

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