| Teysha Technologies | |
| TFA | |
| Tformat Ltd | Wiltshire |
| TG Systems (UK) Ltd | |
| TGC Computers Ltd | West Yorkshire |
| TH-EY | |
| th4ts3cur1ty.company | West Sussex |
| Thallo | |
| Thames Gateway Manufacturing Centre Ltd | Greater London |
| Thames Infotech | |
| Thames Technology | |
| Thames Web Design | |
| Thanks Ben Ltd | |
| The Access Bank UK Ltd | |
| The ACS Group | South Yorkshire |
| The App Chaps | |
| The Apprentice Academy | |
| The Armstrong Partnership Ltd | Cheshire |
| The Art Department | Cambridgeshire |
| The Artlab | |
| The Ayrshire Community Trust | |
| The Backscratchers Ltd | |
| The Bakery | |
| The Bank of London | Greater London |
| The Barcode Business | Newport |
| The Barcode Warehouse Ltd | Nottinghamshire |
| The Blog House Ltd | |
| The Blue Cube Communications Ltd | West Midlands |
| The Boutique Workplace Co | |
| The Brains | |
| The Building Block | |
| The Bunker | Kent |
| The Bureau EG Ltd | West Sussex |
| The Buro .net | Somerset |
| The Business Research Company | Greater London |
| The Business Show | |
| The Bytes Project | Belfast |
| The Carbon Trust | |
| The Cardiff Graphic Designer | |
| The Channel Agency | |
| The Chartered Institute for IT - Bristol Branch | Bristol |
| The Chemistry Set | Bristol |
| The Chord Company Ltd | Wiltshire |
| The Client Factory | Surrey |
| The Co-operative Bank plc | Greater Manchester |
| The Collective | |
| The Communications Group | Oxfordshire |
| The Communicator Corporation Ltd | Tyne and Wear |
| The Conference Exchanges DEX | |
| The Consumables Depot | West Yorkshire |