| Team name | Location | League | Level | Status |
|---|---|---|---|---|
| Attleboro Angels | Attleboro, Massachusetts | Atlantic Association | professional | defunct |
| Baltimore Orioles | Baltimore, Maryland | Atlantic Association | professional | defunct |
| Easton | Easton, Pennsylvania | Atlantic Association | professional | defunct |
| Harrisburg Ponies | Harrisburg, Pennsylvania | Atlantic Association | professional | defunct |
| Hartford | Hartford, Connecticut | Atlantic Association | professional | defunct |
| Hartford Nutmeggers | Hartford, Connecticut | Atlantic Association | professional | defunct |
| Jersey City Gladiators | Jersey City, New Jersey | Atlantic Association | professional | defunct |
| Jersey City Skeeters | Jersey City, New Jersey | Atlantic Association | professional | defunct |
| Lebanon | Lebanon, Pennsylvania | Atlantic Association | professional | defunct |
| Lewiston | Lewiston, Maine | Atlantic Association | professional | defunct |
| Lowell | Lowell, Massachusetts | Atlantic Association | professional | defunct |
| New Haven | New Haven, Connecticut | Atlantic Association | professional | defunct |
| New Haven Nutmegs | New Haven, Connecticut | Atlantic Association | professional | defunct |
| Newark Little Giants | Newark, New Jersey | Atlantic Association | professional | defunct |
| Newport Ponies | Newport, Rhode Island | Atlantic Association | professional | defunct |
| Norwalk | Norwalk, Connecticut | Atlantic Association | professional | defunct |
| Pawtucket Colts | Pawtucket, Rhode Island | Atlantic Association | professional | defunct |
| Taunton Angels | Taunton, Massachusetts | Atlantic Association | professional | defunct |
| Washington Senators | Washington, D.C. | Atlantic Association | professional | defunct |
| Wilkes-Barre Coal Barons | Wilkes-Barre, Pennsylvania | Atlantic Association | professional | defunct |
| Wilmington Peach Growers | Wilmington, Delaware | Atlantic Association | professional | defunct |
| Woonsocket Trotters | Woonsocket, Rhode Island | Atlantic Association | professional | defunct |
| Worcester | Worcester, Massachusetts | Atlantic Association | professional | defunct |