| AMERICAN MANAGEMENT GROUP LLC (PA) | 2001 | Changed name after founding |
| AMERICAN MANAGEMENT GROUP LLC (SC) | 2002 | |
| AMERICAN MANAGEMENT GROUP LLC (OH) | 2004 | Changed name from American Management Group, Ltd. |
| AMERICAN MANAGEMENT GROUP LLC (UT) | 2008 | Changed name after founding |
| AMERICAN MANAGEMENT GROUP LLC (DE) | 2009 | |
| AMERICAN MANAGEMENT GROUP LLC (NM) | 2012 | Not in business |
| AMERICAN MANAGEMENT GROUP, LLC (NM) | 2015 | |
| AMERICAN MANAGEMENT GROUP LLC (MT) | 2022 | |
| AMERICAN MANAGEMENT GROUP LLC (NV) | 2024 | |
| AMERICAN MANAGEMENT GROUP LLC (NJ) | 2011 | |
| AMERICAN MANAGEMENT GROUP LLC (NY) | 1997 | Inactive |
| AMERICAN MANAGEMENT GROUP, LLC (NY) | 2017 | |
| AMERICAN MANAGEMENT GROUP, LLC (IN) | 2007 | |
| AMERICAN MANAGEMENT GROUP, LLC (FL) | 2018 | Affiliated with IN |
| AMERICAN MANAGEMENT GROUP, LLC (VA) | 2004 | |
| AMERICAN MANAGEMENT GROUP LLC (IA) | TBD | |
| AMERICAN MANAGEMENT GROUP I LLC (FL) | TBD | |
