- Air Force
- Army
- Defense Information Systems Agency
- Department of Homeland Security
- Defense Threat Reduction Agency
- Department of Interior
- Department of Justice
- Intelligence Community
- Joint Services Provider- Pentagon
SMS currently performs work on federal government customer sites in the following states:
- Alabama
- Arizona
- California
- Colorado
- District of Columbia
- Georgia
- Kansas
- Maryland
- Massachusetts
- Mississippi
- New Jersey
- New Mexico
- Pennsylvania
- Texas
- Virginia