| Name |
| Nottingham Frontrunners |
| Old Culfordian's Running Club |
| Old Greshamians |
| On the Run Aylesbury |
| One Run Shropshire |
| Ormeau Runners |
| OWLS Leicester AC |
| Oxalis Running Club |
| Oxted Runners |
| Peacehaven Run Club |
| Penny Lane Striders Running Club |
| Perran Trail Runners |
| Pershore Plum Plodders |
| Pewsey Plodders |
| Pewsey Vale Running Club |
| Phoenix Harriers Frampton Cotterell |
| Pickering Running Club |
| Pink and Blacks |
| PL7 Pacers |
| Plymstock Road Runners |
| Poplar Running Club |
| Portsmouth Joggers |
| Proof Run Club |
| Pyrford Puffers |
| Radcliffe Athletic Club |
| Ramsbottom Running Club |
| Ramsey Road Runners |
| Recreational Running |
| Redway Runners |
| Reepham Runners |
| Rickinghall Runners |
| Ricky Running Sisters |
| Ripley Running Club |
| Riverside Runners |
| Ross County Athletics Club |
| Round Norfolk Relay |
| Royal Manor of Portland Athletics Club |
| Royal Veterinary College Triathlon & Athletics |
| Royal Wotton Bassett Hounds |
| Royston Runners |
| RR10 League |
| Run Blandford |
| RUN Loughborough |
| RunChums |
| Running For It |
| Running Forever Running Club |
| Running Friends Devizes |
| Running Sisters Tayside |
| Running Sisters-Chiltern Region |
| Running Somewhere Else |
| Running Space |
| Running4CF |
| Runnyhoneys |
| RunThrough Events |
| Saints and Sinners Running Club |
| Sandhurst Joggers |
| Secret Run Club |
| Sedgemoor Striders |
| Shadwell Runners |
| Shawbury Joggers |
| Sheen Shufflers |
| Sheet Striders |
| Shepshed Running Club |
| Shepton Shufflers |
| Shinfield Running Club |
| Shore Footed |
| Shrewsbury Road Runners |
| Shrewton Running Club |
| Sidmouth Running Club |
| Skelmersdale Boundary Harriers |
| Sleaford Town Runners |
| SMACT |
| Smiley Paces |
| Somer Athletic Club |
| South Molton Strugglers |
| Southville Running Club |
| Sporting Club Inkberrow |
| St Austell Athletes Running Club |
| St Austell Running Club |
| St Cyrus Solos |
| Staffordshire Moorlands Athletics Club |
| Star Running Club |
| Stevenage Phoenix Running Club |
| Stevenage Striders |
| Stopsley Striders |
| Stour Striders |
| Street Striders |
| Sunderland Strollers |
| Sutton Striders |
| Tadley Runners |
| Tadley Youth Running Club |
| Tadworth AC |
| Tankerton Running Group |
| Team Agile |
| Teign Valley Running Club |
| Teignbridge Trotters |
| The Holbeton Harriers |
| The Jim Miller 3 Miles Monthly Handicap |
| The Orcs |
| Thornbury Running Club |
| Three Counties Cross Country League |
| Tideswell Running Club |
| Torbay Running Club |
| Town and Country Harriers |
| TRac FV Run Club |
| Tracy Waites Soul Runners |
| Trail Outlaws Running Club |
| Tri-Hards |
| Truro Running Club |
| TT Runners |
| Underground Run Club |
| Up and Out Ladies Running Club |
| Vegan Running Club |
| Ware Joggers |
| Warleywoods Pacers (RIE) |
| Warriors Pentathlon & Athletic Club |
| Waterfront Community Runners |
| Wessex Road Runners |
| West Bay Harriers |
| West End Runners |
| Weston Athletic Club |
| Weston Whippets |
| Wirksworth Running Club |
| Wooler Running Club |
| Worcestershire Trailblazers |
| Wormit Runners |
| Worthing Striders |
| Yaxley Runners & Joggers |
| Yeovil Town RRC |