Department of Defense NAICS 561110 contractors

Office Administrative Services. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$1,095,580,646

Visible recipients tied to Department of Defense and NAICS 561110

Triwest Healthcare Alliance CORP

Phoenix, AZ

Phoenix, AZ | 130 awards | Top agency Department of Veterans Affairs | NAICS 524114

$14,495,807

Humana Government Business INC

Louisville, KY

Louisville, KY | 86 awards | Top agency Department of Defense | NAICS 524114

$85,033,472

Alutiiq International Solutions, LLC

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 236220

$254,499,325

Lmi Consulting, LLC

Tysons Corner, VA

Tysons Corner, VA | 256 awards | Top agency Department of Defense | NAICS 541330

$61,808,920

Tatitlek Training Services, Inc.

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 561210

$1,265,380

Tyonek Services Corporation

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 336413

$759,605

Network Security Systems Plus, INC

Mc Lean, VA

Mc Lean, VA | 6 awards | Top agency Department of Defense | NAICS 541512

$2,850,278

Serco Management Services, Inc.

Reston, VA

Reston, VA | 5 awards | Top agency Department of Transportation | NAICS 488111

$8,043,579

Bering Straits Information Technology, LLC

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 334517

$31,031,893

Trace Systems, Inc.

Mclean, VA

Mclean, VA | 124 awards | Top agency Department of Defense | NAICS 334220

$71,573,008

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