General Services Administration PSC C1AA contractors

ARCHITECT AND ENGINEERING- CONSTRUCTION: OFFICE BUILDINGS. Contractors in this PSC lane under General Services Administration.

Agency: General Services Administration

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$3,827,505,331

Visible recipients tied to General Services Administration and PSC C1AA

Bl Harbert International LLC

Birmingham, AL

Birmingham, AL | 210 awards | Top agency Department of State | NAICS 236220

$3,045,304,841

Brasfield & Gorrie LLC

Birmingham, AL

Birmingham, AL | 66 awards | Top agency General Services Administration | NAICS 236220

$517,953,637

Leidos Engineering LLC

Reston, VA

Reston, VA | 5 awards | Top agency Department of Defense | NAICS 541310

$2,388,353

Jacobs Government Services Company

Arlington, VA

Arlington, VA | 238 awards | Top agency Department of Defense | NAICS 541330

$38,555,051

Trane U.s. Inc.

White Bear Lake, MN

White Bear Lake, MN | 324 awards | Top agency Department of Defense | NAICS 541330

$79,676,344

Smithgroup, Inc.

Washington, DC

Washington, DC | 83 awards | Top agency Social Security Administration | NAICS 541310

$16,841,888

Aecom Services, LLC

Arlington, VA

Arlington, VA | 82 awards | Top agency Department of Defense | NAICS 541330

$9,706,252

Geosyntec Consultants, Inc.

Boca Raton, FL

Boca Raton, FL | 48 awards | Top agency Department of Defense | NAICS 541620

$7,259,954

Christman Company, The

Lansing, MI

Lansing, MI | 14 awards | Top agency General Services Administration | NAICS 236220

$35,139,917

Venesco Construction Management LLC

Chantilly, VA

Chantilly, VA | 14 awards | Top agency Department of State | NAICS 236220

$5,255,627

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