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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

191

Recipient

Sisseton Wahpeton Oyate

Agency Village, SD | 147 awards | Top agency Department of the Interior | NAICS 326111

$180,684,465

192

Recipient

Clinical Research Management,

Hinckley, VA | 5 awards | Top agency Department of Health and Human Services | NAICS 541512

$34,116,527

193

Recipient

Mantech Gray Hawk Systems, Inc.

Falls Church, VA | 5 awards | Top agency Department of Defense | NAICS 541330

$999,449

194

Recipient

Messer Construction CO

Cincinnati, OH | 75 awards | Top agency Department of Defense | NAICS 236220

$22,425

195

Recipient

Chenega Tri-services, LLC

San Antonio, TX | 25 awards | Top agency Department of Defense | NAICS 621111

$23,387,404

196

Recipient

Pratt & Whitney Engine Services, INC

Bridgeport, WV | 5 awards | Top agency Department of Transportation | NAICS 336412

$4,680

197

Recipient

Lime Energy Services Co.

Huntersville, NC | 5 awards | Top agency Department of Defense | NAICS 236220

$76,801

198

Recipient

Goldbelt Apex, LLC

Alexandria, VA | 54 awards | Top agency Department of Defense | NAICS 611430

$760,049

199

Recipient

Goldbelt Frontier, LLC

Alexandria, VA | 105 awards | Top agency Department of Defense | NAICS 811219

$16,564,016

200

Recipient

Inalab Consulting, Inc.

Fairfax, VA | 136 awards | Top agency Department of Defense | NAICS 541330

$35,054,774

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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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