GCA USA is proud to boast a broad array of corporate and military clients and partnerships, delivering best-in-class professional technical services nationwide.


Pacific Air Forces
Headquarters Department of the U.S. Army PMAS and G8
Department of the U.S. Navy, Army, Air Force, and Army National Guards
U.S. Army Corps of Engineers
U.S. Assistant Secretary of the Army for Acquisitions, Logistics, and Technology (ASA ALT)
U.S. Army Tank-Automotive and Armament Command (TACOM)
U.S. Tank Automotive Research, Development, and Engineering Center (TARDEC)
Department of Interior
Global Business Support Area 1
SeaPort NxG



SAIC, MDB Group LLC, BAE Systems, KaiHonua, FEDITC, 3IT, WWT, IronBow, PACXA, n2grate, General Informatics, CAI, ICATT, LSA, MAT Inc

Goldman Sacks10k, TSPi, DellEMC, CISCO, VMWare, CTERA, IVANTI, F5, HP, Riverbed, Quantum Research Intl Inc, Millennium Advanced Concepts and Technologies International (ACT I) Drive Development, Camber Corporation, JE Jacobs Group Inc.

Aloha Gas, National Tires, Interstate Batteries, PBM, Foster Building Material