- Mariners Farm Boatyard
- Medway Bridge Marina
- Medway Cruising Club
- Medway Queen Preservation Society
- Medway Sailability
- Medway Towns Rowing Club
- Medway Watersports Trust
- Medway Yacht Club
- Pirates Cave Limited
- Port Medway Marina
- Queenborough Harbour Trust
- Queenborough Rowing Club
- Queenborough Yacht Club