Teams
Current
- Barrow Raiders
- Batley Bulldogs
- Bradford Bulls
- Dewsbury Rams
- Doncaster RLFC
- Featherstone Rovers
- Halifax Panthers
- Sheffield Eagles
- Swinton Lions
- Toulouse Olympique
- Wakefield Trinity
- Whitehaven RLFC
- Widnes Vikings
- York Knights
Former
- Blackpool Gladiators
- Blackpool Panthers
- Bramley
- Bridgend
- Carlisle
- Castleford Tigers
- Catalans Dragons
- Crusaders RL
- Huddersfield Giants
- Hull FC
- Hull Kingston Rovers
- Hunslet RLFC
- Keighley Cougars
- Leeds Rhinos
- Leigh Leopards
- London Broncos
- Newcastle Thunder
- North Wales Crusaders
- Nottingham City
- Oldham
- Prescot Panthers
- Rochdale Hornets
- Salford Red Devils
- Southend Invicta
- Toronto Wolfpack
- Warrington Wolves
- Wigan Warriors
- Workington Town