Department of Homeland Security PSC Z1AA contractors

MAINTENANCE OF OFFICE BUILDINGS. Contractors in this PSC lane under Department of Homeland Security.

Agency: Department of Homeland Security

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$828,367,747

Visible recipients tied to Department of Homeland Security and PSC Z1AA

Tatitlek Technologies, LLC

Anchorage, AK

Anchorage, AK | 238 awards | Top agency Department of State | NAICS 561210

$328,455,966

Lb & B Associates INC

Columbia, MD

Columbia, MD | 249 awards | Top agency Department of Defense | NAICS 561210

$184,027,028

Jones Lang Lasalle Americas, Inc.

Washington, DC

Washington, DC | 191 awards | Top agency Department of Defense | NAICS 541611

$240,358,080

Chenega Tri-services, LLC

San Antonio, TX

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

$23,572,113

Aleut O&m Services, LLC

Colorado Springs, CO

Colorado Springs, CO | 55 awards | Top agency Department of Defense | NAICS 561210

$16,088,364

Northern Cheyenne Contractors

Buckeye, AZ

Buckeye, AZ | 20 awards | Top agency General Services Administration | NAICS 236220

$10,264,576

Gray Construction, Inc.

Lexington, KY

Lexington, KY | 5 awards | Top agency Department of Defense | NAICS 236220

$6,478,785

Ryan Companies US INC

Minneapolis, MN

Minneapolis, MN | 5 awards | Top agency General Services Administration | NAICS 236220

$23,916

Max Gray Construction, Inc.

Hibbing, MN

Hibbing, MN | 10 awards | Top agency Department of Defense | NAICS 236220

$6,478,785

Ahtna Design-build INC

West Sacramento, CA

West Sacramento, CA | 10 awards | Top agency Department of Defense | NAICS 236220

$12,620,134

Agency profile

Loading buyer-level contractor and category paths