Products
- Sheffield Univ S.C.
- Shropshire S.C.
- Sidmouth S.C.
- Siliwen Sailing Assoc
- Skegness S.C.
- Skye S.C.
- Slaughden Sailing Club
- Small Boat Club (London)
- Snettisham Beach S.C.
- Soar B..C
- Solent Breezes S.C.
- South Bedfordshire S.C.
- South Caernarvonshire Y.C.
- South Cerney S.C.
- South Staffordshire S.C.
- South West Shingles Y.C.
- South Windermere S.C.
- Southhampton Sailing Club
- Southport S.C.
- Southwold S.C.
- Soveriegh S.C. (Eastbourne)
- Soveriegn Harbour Y.C.
- Square Rigger Club
- St. Helens Model Boat Club
- St. Helier Y.C.
- St. Malo Club
- St. Mawes S.C.
- Staffordshire S.C.
- Staines C.C.
- Stevenage Offshore Cruising Assoc
- Stone S.C.
- Stour S.C.
- Stowe S.C.
- Strangford Lough Y.C.
- Strood Y.C.
- Sunderland Y.C.
- Sussex M.Y.C.
- Sussex Police Offshore S.C.
- Sutton Harbour Y.C.
- Sutton S.C.
- Swanage S.C.
- Shearwater S.C.
- Solway Y.C.
- Spread Eagle S.C.
- St. Catherine's S.C.
- St. Kilda Y.C.
- Stafford Coastal C.C.
- Steam Boat Association
- Stourport Y.C.
- Sailing and Cruising Scotland Club