- A
-
- Abbeyfeale RFC
- Aberavon Green Stars
- ACT Rugby Union Referees Association
- Aldershot and Fleet RUFC
- Aldwinians RUFC
- Amber Valley RFC
- American Raptors Rugby
- Ampthill & District RUFC
- Anselmians RUFC
- Argeles Rugby
- Ashby RFC
- Ashton Under Lyne RFC
- ASRV Ascrum RFC
- Austin Blacks Rugby
- Avenir Bizanos Rugby
- Avonvale RFC
- B
-
- Baildon RUFC
- Ballinrobe RFC
- Ballyshannon Rugby
- Barnes RFC
- Barossa Rams Rugby Club
- Batemans Bay Boars
- Bayonne Bombers RFC
- Belmont RFC
- Beverley RUFC
- Birchfield RUFC
- Birmingham & Solihull RFC
- Bishops Castle & Onny Valley RFC
- Blackpool RUFC
- Blue Mountains Rugby Club
- Bognor RFC
- Bolton RUFC
- Bournemouth Rugby
- BP RUFC
- Brackley RUFC
- Bredon Star RFC
- Brighton Rugby Club
- Bristol Aeroplane Company RFC
- Brockworth RFC
- Broughton Park FC
- Broulee Dolphins
- Brumbies Rugby
- Buckingham RUFC
- Bugbrooke RUFC
- Bungendore Mudchooks Rugby
- Burgess Hill RFC
- Burnley RUFC
- Burnside Rugby Club
- C
- D
- F
- H
- K
- L
- M
- N
- R
- S
-
- Sandbach RUFC
- Scarborough RUFC
- Sheffield Tigers RUFC
- Shetland RFC
- Sittingbourne RFC
- SOUA Rugby
- South Australia Rugby Union Referees
- South Warwickshire RFU
- Southam RUFC
- Southern Beaches Rugby
- Southport RUFC
- Southwold Rugby Club
- St. Senans RFC
- Stado Tarbes Pyrénees Rugby
- Stamford College Old Boys RFC
- Stamford Rugby
- Stillorgan-Rathfarnham RFC
- Supermarine RFC
- Swords RFC
- T
- W
-
- Wadebridge Camels RFC
- Wagga Wagga Crows Junior Rugby
- Wanderers Rugby Club
- Wells RFC
- West Park RFC
- Westbury-on-Severn RFC
- Wests Rugby Club
- Wests Scarborough Rugby Union Club
- Whitchurch RFC
- Whitehaven RUFC
- Widnes RUFC
- Wigton RUFC Seniors
- Wigtownshire RFC
- Wilmslow RUFC
- Winchester RFC
- Wirral RFC
- Wisbech RFC
- Witney RFC
- Wooden Spoon
- Workington RFC