- A
-
- Abbeyfeale RFC
- Aberdeen Grammar Rugby
- Aberdeenshire Quines RFC
- Aberdeenshire RFC
- Aireborough RUFC
- Albury Juniors Steamers
- Aldershot and Fleet RUFC
- Aldwinians RUFC
- Ampthill & District RFC
- Anselmians RUFC
- Aretians RFC
- Arran RFC
- Ashby RFC
- Ashton Under Lyne RFC
- Aspull RFC
- ASRV Ascrum RFC
- Athboy RFC
- Avenir Bizanos Rugby
- B
-
- Baildon RUFC
- Ballarat Highlanders RUFC
- Ballina RFC
- Ballinrobe RFC
- Ballyshannon Rugby
- Bantry Bay RFC
- Barnes RFC
- Batemans Bay Boars
- Battersea Ironsides
- Bayonne Bombers RFC
- Bedford Athletic RFC
- Belper RUFC
- Beverley RUFC
- Birmingham & Solihull RC
- Blackpool RUFC
- Blue Mountains Rugby Club
- Bognor RFC
- Brackley RUFC
- Bridgwater & Albion RFC
- Brighton Rugby Club
- Bristol Aeroplane Company RFC
- British and Irish Lions
- Brockworth RFC
- Bromyard RFC
- Broughton Park FC
- Brumbies Rugby
- Buckingham RUFC
- Bugbrooke RUFC
- Bumble Bees RUFC
- Burgess Hill RFC
- Burley RFC
- Burnley RUFC
- Burnside Rugby Club
- C
-
- Cairo Rugby
- Canada Touch Rugby
- Canberra Royals
- Canberra Vikings
- Cantabs
- Castanet Rugby
- Chard RFC
- Cheltenham Tigers
- Chester RUFC
- Chichester RFC
- Cinderford RFC
- City of Derry RFC
- Clevedon RFC
- Cleveland Rovers RFC
- Cockermouth RUFC
- Collingwood College RFC
- Complete Rugby Project
- Congleton RUFC
- Cork Constitution FC
- Cornish All Blacks
- Cornwall RFU
- Corsham RFC
- Crawley RFC
- Crewe and Nantwich RUFC
- Crowborough RFC
- Cullompton RFC
- D
- H
- L
- M
- O
- S
-
- Sandbach RUFC
- Seaford RFC
- Sefton RUFC
- Sheffield Hallamshire RFC
- Sileby Town RFC
- SOUA Rugby
- South Australia Rugby Union
- South Australia Rugby Union Referees
- Southam RUFC
- Southport RUFC
- Southwold Rugby Club
- St Benedicts RUFC
- St Columba and Torpoint
- St Neots RFC
- Stado Tarbes Pyrénees Rugby
- Stamford Rugby
- Stillorgan-Rathfarnham RFC
- Stoneham RFC
- Strabane RFC
- Sussex Police RFC
- Swords RFC
- T
- W
-
- Wadebridge Camels RFC
- Waid Academy RFC
- Waiuku Rugby
- Wellingborough Old Grammarians RFC
- Wells RFC
- West Leeds RUFC
- West Park RFC
- Western Force
- Wests Rugby Club
- Wests Rugby Club (Juniors)
- Whitehaven RUFC
- Whitton Lions
- Wilmslow RUFC
- Wirral RFC
- Wisbech RFC
- Witney RFC
- Wiveliscombe RFC
- Woking RFC
- Wooden Spoon
- Woodville Rugby
- Woollahra Colleagues Rugby
- Worcester Warriors DISE
- Worcester Warriors DPP
- Worcester Warriors RFC
- Workington RFC
- Worksop RFC
- Worthing RFC