| TTF Racing Ltd | Sherborne | A rating |
| TTG Capital Limited | London | A rating |
| TTH@IOS Limited | Isles of Scilly | A rating |
| TTK Express Europe Ltd t/a TTK Express | Manchester | A rating |
| TTMJ LIMITED | London | A rating |
| TTN Enterprise Food and Wine T/A Londis | Esher | A rating |
| TTN PREMIER LTD | KENT | A rating |
| TTND LTD T/A The New Delhi | Folkestone, Kent | A rating |
| TTONIC LIMITED | Sunderland | A rating |
| TTP Group Limited | Royston | A rating |
| TTPlus Limited T/A TTfone | Dartford | A rating |
| TTPZ Services Ltd | WEST BROMWICH | A rating |
| TTS Legal Ltd | Ilford | A rating |
| TTS Racing Ltd | Sherborne | A rating |
| TTT MONEYCORP LIMITED | LONDON | A rating |
| TTUC Ltd | Liverpool | A rating |
| TTX Services UK Limited | London | A rating |
| TU ASSOCIATES UK LIMITED | Barking | A rating |
| TU Auditing Limited | Altrincham | A rating |
| Tu Casita Homes Limited | Oldham | A rating |
| TU MOTORS LIMITED | Luton | A rating |
| Tu Pack LTD | Coventry | A rating |
| TUALCOM UK LIMITED | London | A rating |
| Tuan Viet UK Limited | Surbiton | A rating |
| Tubal Trading Ltd | Rotherham | A rating |
| Tubbees Autoport | Glasgow | A rating |
| Tube Tech Industrial Limited | Canvey Island | A rating |
| TUBI Media Group Ltd | London | A rating |
| TUBR Limited | Sheffield | A rating |
| TUBS CATERING LTD | London, Sevenoaks | A rating |
| Tubular Labs UK Limited | London | A rating |
| Tuckers Solicitors LLP | London | A rating |
| Tuckey Design Studio Ltd | London | A rating |
| Tuckton Pharmacy Limited | Bournemouth | A rating |
| TUDAR SKILLS LIMITED | Romford | A rating |
| Tudhoe Cricket Club | Spennymoor | A rating |
| TUDOR BANK LIMITED | MIDDLESEX | A rating |
| Tudor BEC ltd | Worcester Park | A rating |
| Tudor Capital Europe LLP | London | A rating |
| Tudor Dry Cleaning Limited | Ashford | A rating |
| Tudor Farmhouse Hotel | Clearwell | A rating |
| Tudor Grange Academies Trust | Solihull | A rating |
| Tudor Hall School | Banbury | A rating |
| Tudor House | Birmingham | A rating |
| TUDOR LODGE CARE HOME LIMITED | FOLKESTONE | A rating |
| Tudor Lodge Health Centre | London | A rating |
| TUDOR PARK EDUCATION TRUST | Feltham | A rating |
| Tudor Stores | Hayes | A rating |
| TUDOR SURVEYING AND ENGINEERING LTD | BARKING | A rating |
| Tudorknight Limited | Altrincham | A rating |
| TudorMay Ltd | Basildon | A rating |
| TUDOROBORNE LIMITED T/A NEARY CONSTRUCTION | MANCHESTER | A rating |
| TUF TREADS (DYFED) LIMITED | Llanelli | A rating |
| Tufail Chemicals UK Limited | London | A rating |
| Tufail Group Limited | London | A rating |
| Tufcoat Ltd | Plymouth | A rating |
| Tuffbau Limited t/a Steintec | Canvey Island | A rating |
| Tuffenough Ltd | Benfleet | A rating |
| Tuffin Ferraby Taylor (TFT) Limited | London | A rating |
| Tuffnell Glass | Rudston | A rating |
| Tufin Software Europe Limited | Reading | A rating |
| Tufton Investment Management Ltd | London | A rating |
| Tug Limited | Shoreditch | A rating |
| TUI Travel Limited | Luton | A rating |
| Tuis Of Malton LTD | Malton | A rating |
| Tuite Tang Wong | Essex | A rating |
| Tuk In Foods Manufacturing Ltd | Leicester | A rating |
| Tuk Tuk Fortwilliam Ltd | Fort William | A rating |
| Tuk Tuk Horsham Limited | Horsham | A rating |
| TUK TUK RETAIL LTD | Ashton-Under-Lyne | A rating |
| Tuk Tuk Ricky Limited | Rickmansworth | A rating |
| Tuk-Tuk Inn Limited t/a Fare | London | A rating |
| Tuke & Bell Ltd | Wednesbury | A rating |
| TUKI Ltd | London | A rating |
| TUKSY AUTOCENTRE LTD | Newport | A rating |
| TUKSY CHAUFFEURS LTD | Newport | A rating |
| TUKTUK PANASIA LTD | Grays | A rating |
| Tula Medical Negligence Experts Limited | Stafford | A rating |
| Tula Precision Ltd | Northleach | A rating |
| TULASI IT | Birmingham | A rating |
| Tulcan Energy Resources UK | London | A rating |
| TULCHAN COMMUNICATIONS LLP | London | A rating |
| Tuli Health Limited | London | A rating |
| Tulip Bidco Ltd | London | A rating |
| Tulip Care at Home Ltd | Pulborough | A rating |
| Tulip Day Nursery Limited | West Midlands | A rating |
| Tulip Eats Ltd | London | A rating |
| Tulip Hotels & Real Estate Limited | London | A rating |
| TULIP HOTELS LIMITED | London | A rating |
| Tulip Limited | Birmingham | A rating |
| TULIP MANAGEMENT LIMITED | Slough | A rating |
| TULIP MENTAL HEALTH AND COMMUNITY CARE LTD | Rusholme | A rating |
| Tulip Warbrook House Hotel Opco Ltd | London | A rating |
| TulipCare | Loughton | A rating |
| Tulips World Ltd t/a Heavenly Desserts Castleford | Castleford | A rating |
| TulipTech LTD | LEICESTER | A rating |
| Tulisa Ltd T/A Lilys Kitchen & Bar | Glenavy | A rating |
| Tulja Jewellers | London | A rating |
| Tulleys Entertainment Group Limited | Crawley | A rating |
| Tulleys Growing Inspired Limited | Crawley | A rating |
| Tullie House Museum and Art Gallery Trust | Carlisle | A rating |
| Tullis Russell Coaters | MACCLESFIELD | A rating |
| Tulloch Crab Fishing Company Limited | Lerwick | A rating |
| Tullow Oil Plc | London | A rating |
| Tully De'Ath Ltd | Forest Row | A rating |
| Tullyglass House Hotel | BALLYMENA | A rating |
| Tullyraine Equine Clinic LLP | Banbridge | A rating |
| Tulsi Convenience Store Ltd | Southampton | A rating |
| TULSI KANDEL LIMITED T/A MUSTANG MASALA | DERBY | A rating |
| TULU TECH LTD | London | A rating |
| Tumelo Ltd | Bristol | A rating |
| Tumkaya Ltd | London | A rating |
| Tun & Min Ltd | London | A rating |
| Tun Abdul Razak Research Centre | Hertford | A rating |
| TunaAutismConsultancy Limited | Wilmslow | A rating |
| Tunbridge Wells Cricket Club | Tunbridge Wells | A rating |
| Tunbridge Wells Eye Centre | Royal Tunbridge Wells | A rating |
| TUNBRIDGE WELLS RESTAURANTS LTD | TUNBRIDGE WELLS | A rating |
| Tunbridge Wells Specsavers Hearcare LTD | Tunbridge Wells | A rating |
| Tundra International Limited | Weybridge | A rating |
| Tungsten Automation UK Limited | London | A rating |
| Tungsten West Services Limited | Plymton | A rating |
| Tunic & Co UK Limited | London | A rating |
| Tunisair | London | A rating |
| TUNJI & TEMI HOLDINGS LTD | LONDON | A rating |
| Tunley Environmental Ltd | Leeds | A rating |
| Tunnel Engineering Limited | TONBRIDGE | A rating |
| Tunnel Travel Limited | Huddersfield | A rating |
| Tunnelcraft Limited | Basildon | A rating |
| Tunstall Healthcare (UK) Limited | Whitley | A rating |
| Tunstall Primary Care | Stoke on Trent | A rating |
| TUPEL LTD | Oxford | A rating |
| Tupras Trading Ltd | London | A rating |
| TUPSLEY POS LIMITED T/A Tupsley Post Office & Store | Hereford | A rating |
| TUQCO NATURAL STONE & TILE LTD | London | A rating |
| Turag Foods Limited T/A Kolapata Retaurant | london | A rating |
| TURANYA PVT LTD | Doncaster | A rating |
| Turay Homes Ltd | Bournemouth | A rating |
| Turbine Services Limited | Glasgow | A rating |
| Turbine Simulated Cell Technologies Limited | Cambridge | A rating |
| TURBO K9 SECURITY LTD | Hucknall | A rating |
| Turbo Motorcycles Ltd | London | A rating |
| Turbo Power Systems | Gateshead | A rating |
| Turbo Precision Components Limited | Huddersfield | A rating |
| TURBO SNAIL LTD | Birmingham | A rating |
| TURBO SPEED LOGISTICS LTD | Bristol | A rating |
| Turbocam UK Limited | Fareham | A rating |
| Turck Banner Limited | Wickford | A rating |
| Turco Engineering | Cookstown | A rating |
| Tureddi Group Limited | Mayfair | A rating |
| TURF SERVICES LIMITED | Dudley | A rating |
| Turf Trading Limited | Exeter | A rating |
| Turim UK Limited | London | A rating |
| Turing House School | Twickenham | A rating |
| Turing Intelligence Technology Limited | London | A rating |
| TURK TRANSPORT (UK) LIMITED | Amersham | A rating |
| turkington martin landscape architects | london | A rating |
| Turkish Airlines Inc | London | A rating |
| Turkish Bank (UK) Ltd | London | A rating |
| Turkish BBQ Kitchen Ltd | Christchurch | A rating |
| TURKISH DIAMOND BABRBER | Birmingham | A rating |
| TURKISH EATERY LTD | Bolton | A rating |
| TURKISH FLAMES LIMITED | Manchester | A rating |
| TURKISH HOUSEHOLD (UK) LIMITED | LONDON | A rating |
| TURKISH SHAWARMA LTD | Walsall | A rating |
| Turkish Table Limited T/A Uni Kebab | Southampton | A rating |
| TURKIYE HALK BANKASI A.S. (LONDON REPRESENTATIVE OFFICE) | London | A rating |
| Turkiye Is Bankasi A.S. | London | A rating |
| Turknaz Limited | Whitley Bay | A rating |
| TURKUAZ (DONCASTER) LIMITED | Doncaster | A rating |
| Turkuaz Catering Limited | London | A rating |
| TURKUAZ KITCHEN LIMITED | Nottingham | A rating |
| Turkuaz Turkish Baths Spa And Barber | Dunfermlin | A rating |
| TURKUOISE GROUP LTD T/A TURKUOISE | London | A rating |
| TURKZ LTD | LONDON | A rating |
| Turley Associates Limited | Manchester | A rating |
| Turmeric Kitchen Ltd | Pinner | A rating |
| Turmeric Square Ltd | Kent | A rating |
| TURN UP CARE LIMITED | Gloucester | A rating |
| Turna Beer and Wine | Oxford | A rating |
| Turnbridge Wells 888 Taxis Ltd | Kent | A rating |
| TURNBULL & SCOTT (ENGINEERS) LIMITED | Hawick | A rating |
| Turnbulls Health Care Limited | Leicester | A rating |
| TURNER (LONDON) LTD. | LONDON | A rating |
| TURNER & LOVELL LIMITED | KETTERING | A rating |
| Turner & Townsend Ltd | Leeds | A rating |
| Turner Broadcasting System Europe Limited | London | A rating |
| Turner Home | Liverpool | A rating |
| Turner Iceni Ltd | Glasgow | A rating |
| Turner Little Limited | York | A rating |
| TURNER RETAIL LTD | Paisley | A rating |
| Turner Schools | Folkestone | A rating |
| Turners News | Dagenham | A rating |
| Turney Primary & Secondary Special School | London | A rating |
| Turning Point | Manchester | A rating |
| Turnitin UK LTD | Newcastle Upon Tyne | A rating |
| Turnkey Consulting (UK) Limited | London | A rating |
| Turnkey Instruments Ltd | Northwich | A rating |
| TURNLEAF ANALYTICS LTD | London | A rating |
| Turnout Labs Ltd | London | A rating |