GEM boasts fully satisfied Department of Defense, Department of Energy, Department of Homeland Security, National Nuclear Security Administration, National Aeronautic Space Administration, and commercial clients.  Contracts have included:

U.S. Department of Defense (DoD)
Homestead Air Force Reserve Base Homestead, Florida


U.S. Department of Energy (DOE)
Office of Environmental Management/DOE Headquarters
Idaho National Engineering & Environmental Laboratory
Strategic Petroleum Reserve Project Office (DynMcDermott Petroleum Operations)
Savannah River Operations Office


U.S. Department of Homeland Security (DHS)
DHS Operations at the Nevada Test Site Las Vegas, Nevada
Federal Aviation Administration Washington, DC


National Nuclear Security Administration (NNSA)
NNSA Headquarters (Non-proliferation and Safeguards and Security)
Albuquerque Service Center Albuquerque, New Mexico
Y-12 Plant Oak Ridge, Tennessee
Lawrence Livermore National Laboratory Livermore, California
Los Alamos National Laboratory Los Alamos, New Mexico
Sandia National Laboratories Albuquerque, New Mexico
Nevada Test Site Las Vegas, Nevada
Pantex Plant Amarillo, Texas


National Aeronautics and Space Administration (NASA)
Kennedy Space Center Florida


Commercial
British Petroleum Reserve Facilities across the U.S.
Washington Metropolitan Area Transit Authority Washington, DC