| Team name | Location | League | Level | Status |
|---|---|---|---|---|
| Port Arthur Sea Hawks | Port Arthur, Texas | Evangeline League | professional | defunct |
| Port Arthur Sea Hawks | Port Arthur, Texas | Gulf Coast League | professional | defunct |
| Portland Sea Hawks | Portland, Maine | Atlantic Coast Football League | professional | defunct |
| Redondo Union Sea Hawks | Redondo Beach, California | high school | active | |
| Rehoboth Beach Sea Hawks | Rehoboth Beach, Delaware | Eastern Shore League | professional | defunct |