Antares Caving Club

Birmingham Cave & Crag Club

Buttered Badgers Potholing Club

Chesterfield Caving Club

Crewe Climbing and Potholing Club

Derbyshire Caving Club

Derbyshire Pennine Club

Dudley Caving Club

East Essex Caving Team

Eldon Pothole Club

Jackpot Caving Group

Leicestershire Scouts Caving Group

Lincoln Scouts Caving Club

Manchester University Speleological Club

Masson Caving Group

Mendip Caving Group

North Leicestershire Mountain Club

Nottingham University Caving Club

Orpheus Caving Club

Peak District Mines Historical Society