| Team name | Location | League | Level | Status |
|---|---|---|---|---|
| LIB Neptunes | New York, New York | Atlantic Collegiate Baseball League | amateur | active |
| Norfolk Neptunes | Norfolk, Virginia | Atlantic Coast Football League | professional | defunct |
| Norfolk Neptunes | Norfolk, Virginia | Continental Football League | professional | defunct |
| Virginia Beach Neptunes | Virginia Beach, Virginia | Atlantic League of Professional Baseball | professional | defunct |