| Aberdeen Proving Ground | |
|---|---|
| Aberdeen, Maryland | |
 This sign on U.S. Route 40 in Aberdeen, Maryland commemorates the establishment of Aberdeen Proving Ground in 1917. | |
  Aberdeen Proving Ground Location of Aberdeen Proving Ground  Aberdeen Proving Ground Aberdeen Proving Ground (the United States) | |
| Coordinates | 39°28′30″N 76°7′30″W / 39.47500°N 76.12500°W |
| Site information | |
| Owner | US Army |
| Open to the public | No |
| Site history | |
| Built | 1917 |
| In use | 1917–present |
| Garrison information | |
| Current commander | Major General James D. Turinetti IV |
Aberdeen Proving Ground (APG) is a U.S. Army facility located adjacent to Aberdeen, Harford County, Maryland, United States. More than 7,500 civilians and 5,000 military personnel work at APG. There are 11 major commands among the tenant units, including:
- United States Army Communications-Electronics Command (CECOM)
- United States Army Combat Capabilities Development Command (CCDC)
- United States Army Test and Evaluation Command (ATEC)
- Edgewood Arsenal
- Adelphi Laboratory Center
- The Army Reserve Information Operations Command
- Unified Cross Domain Services Management Office
- HQ, U.S. Army Contracting Command (Army Contracting Command –APG, Adelphi Contracting Division)
- U.S Army 93rd Signal Network - Network Enterprise Center
- Logistics Readiness Center
- U.S. Army Cyber Operation Group – 335th Signal Command
- Blossom Point Research Facility