| Beachampton Running Club | Belvoir Tri Club | Bevan Gang |
| Bicester | Bill Krarup Gang | Brj Run & Tri |
| Bushfield Joggers | Cambridge Triathlon Club | Coventry Triathletes |
| Cunniffe Gang | Do3 Squad | Ely Runners |
| Gade Valley Tri | Greenlightpt | Horsely Gang |
| Humber Triathletes | Johnson Gang | Just Glue It |
| Krarup Gang | Leicester Tri Club | Mackay Gang |
| Mark Wave 3 Coaching Rt | Mercedes Amg F1 | Mercedes Amg F2 |
| Mersey Tri | Mvh Triathlon Club | Northampton Triathlon Club |
| Northants Triathlon Club | Ntri | Pactrac |
| Plot Plodders | Project Mayhem | Race Hub |
| Racehub | Relay Rumble | Rugby Tri |
| Rugby Triathlon Club | Southwell Running Club | Speedhub |
| Team Milton Keynes | Tfn Tri Club | Three Amigos |
| USMES | WDAC | Welland Valley Tri |
| Wellingborough & District Ac | Windrush Triathlon Club | Wootton Rr |
| Wootton Tri | Wvtri |
