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| Maidenhead Sailing Club | View |
| Maidstone Sailing Club | View |
| Manor Park Sailing Club | View |
| Marchwood Yacht Club | View |
| Margate Yacht Club | View |
| Marina Boat Club | View |
| Marlow Sailing Club | View |
| Mayflower Sailing Club | View |
| Maylandsea Bay Sailing Club | View |
| Medina Mariners Association | View |
| Medway Cruising Club | View |
| Medway Yacht Club | View |
| Melton Mowbray Sailing Club | View |
| Mengeham Rythe Sailing Club | View |
| Merchant Taylors School Sailing Club | View |