| BT Local Business Severnside | Business-to-business service | Cardiff Gate Business Park, Part Ground Floor, Raglan House, Malthouse Ave | Cardiff | Mon–Fri 08:00–18:00 |
| BT Business Phone Systems | Telecommunications service provider | 101 Lockhurst Ln | Coventry | — |
| BT Local Business Norfolk & Suffolk | Telecommunications service provider | 5 St Andrews Hill | Norwich | Fri 08:00–18:00 |
| BT Business Phone Systems | Business-to-business service | Network House, 3 Alkmaar Way | Norwich | Mon 08:00–18:00 |
| BT Local Business - Devon, Cornwall, Somerset & Dorset | Telecommunications service provider | The Apex, Derriford Business Park, Brest Rd | Plymouth | Mon–Fri 08:00–18:00 |