Department of Health and Human Services NAICS 561621 contractors

Security Systems Services (except Locksmiths). Contractors in this NAICS lane under Department of Health and Human Services.

Agency: Department of Health and Human Services

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$1,426,307,493

Visible recipients tied to Department of Health and Human Services and NAICS 561621

Serco INC

Herndon, VA

Herndon, VA | 1,016 awards | Top agency Department of Defense | NAICS 541330

$653,436,871

Paragon Systems INC

Herndon, VA

Herndon, VA | 691 awards | Top agency Department of Homeland Security | NAICS 561612

$257,864,029

Triple Canopy INC

Herndon, VA

Herndon, VA | 326 awards | Top agency Department of State | NAICS 561612

$244,892,339

Johnson Controls Building Automation Systems, LLC

Huntsville, AL

Huntsville, AL | 154 awards | Top agency Department of Defense | NAICS 541512

$101,336,050

Chenega Global Protection, LLC

Chantilly, VA

Chantilly, VA | 371 awards | Top agency National Aeronautics and Space Administration | NAICS 561612

$29,577,490

The Whitestone Group, Inc.

Reynoldsburg, OH

Reynoldsburg, OH | 67 awards | Top agency Department of Transportation | NAICS 561612

$1,210,299

Olgoonik Solutions LLC

Anchorage, AK

Anchorage, AK | 77 awards | Top agency Department of State | NAICS 541690

$28,914,036

Chenega Security International, LLC

Chantilly, VA

Chantilly, VA | 28 awards | Top agency Department of Defense | NAICS 561612

$40,270,100

Chenega Infinity, LLC

Chantilly, VA

Chantilly, VA | 20 awards | Top agency Department of Homeland Security | NAICS 561612

$22,637,972

Alutiiq Business Services, LLC

Anchorage, AK

Anchorage, AK | 5 awards | Top agency Department of Defense | NAICS 611519

$46,168,307

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