These are active clubs that play a full schedule of games in 2018.
| Logo | Team | Home Field |
|---|---|---|
 |
Connecticut Bulldogs | Goodwin Park, Hartford, CT |
 |
Thames Base Ball Club | Fort Trumbull, New London, CT |
 |
Wethersfield Red Onions | Cove Park, Wethersfield, CT |
 |
Woodstock Hilltoppers | East Woodstock Commons, Woodstock, CT |