- Hollowshore Cruising Club
- Hoo Ness Yacht Club
- Hoverclub UK
- Hovercraft Club of Great Britain
- Hundred of Hoo Sailing Club
- Isle of Sheppey Sailing Club
- Kent Boat and Ski Club
- Kentish Sail Association
- Kingsferry Boat Club
- Long Reach Ski Club
- Lower Halstow Yacht Club