Teams
Current
- Bradford Bulls
- Castleford Tigers
- Halifax Panthers
- Leeds Rhinos
- London Broncos
- Oldham
- St Helens
- Sheffield Eagles
- Warrington Wolves
- Wigan Warriors
- Workington Town
Former
- Barrow Raiders
- Batley Bulldogs
- Belle Vue Rangers
- Bramley
- Brighouse Rangers
- Carlisle
- Castleford
- Dewsbury Rams
- Doncaster RLFC
- Featherstone Rovers
- Heckmondwike
- Holbeck
- Huddersfield Giants
- Hull FC
- Hull Kingston Rovers
- Hunslet RLFC
- Keighley Cougars
- Leeds Parish Church
- Leigh Leopards
- Liversedge
- Manningham
- Morecambe
- Pilkington Recreation
- Prescot Panthers
- Rochdale Hornets
- Runcorn
- Salford Red Devils
- Stockport
- Swinton Lions
- Tyldesley
- Wakefield Trinity
- Whitehaven RLFC
- Widnes Vikings
- York Knights