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Department of the Interior NAICS 541519 and PSC D399 contractors in Virginia

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Virginia · Department of the Interior

Last updated: April 8, 2026

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$6,520,750,017

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Visible recipients tied to Department of the Interior, Virginia, NAICS 541519, and PSC D399

Mantech Gray Hawk Systems, Inc.

Falls Church, VA

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

$7,127,643

T And T Consulting Services Inc.

Falls Church, VA

Falls Church, VA | 73 awards | Top agency Department of Defense | NAICS 541511

$60,977,978

Caci Enterprise Solutions, LLC

Chantilly, VA

Chantilly, VA | 11 awards | Top agency Department of Defense | NAICS 541512

$875,441,265

Three Wire Systems, LLC

Mc Lean, VA

Mc Lean, VA | 55 awards | Top agency Department of Veterans Affairs | NAICS 541519

$1,420,023,798

Ardent Management Consulting, LLC

Vienna, VA

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

$143,629,629

Octo Consulting Group LLC

Reston, VA

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

$239,101,472

Netimpact Strategies INC

Herndon, VA

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

$188,825,321

Spry Methods, Inc.

Mc Lean, VA

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

$53,502,059

Zermount, Inc.

Arlington, VA

Arlington, VA | 41 awards | Top agency Department of Homeland Security | NAICS 541512

$17,313,586

Intelligent Waves LLC

Reston, VA

Reston, VA | 48 awards | Top agency Department of Veterans Affairs | NAICS 541519

$301,581,844

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