| Tower House Surgery | Ryde | A rating |
| TOWER LOGISTICS LIMITED | SLOUGH | A rating |
| Tower Pharmacy Ltd | Cheltenham | A rating |
| Tower Research Capital Europe Limited | London | A rating |
| Tower Sanctuary Housing Association | Derby | A rating |
| Tower Supplies | Poole | A rating |
| TOWER WORLDWIDE (BASILDON) LIMITED | BASILDON | A rating |
| TOWERBRIDGE CONSTRUCTION LONDON LIMITED | Enfield | A rating |
| TowerBrook Capital Partners (U.K.) LLP | London | A rating |
| TOWERHILL MOT CENTRE LTD | Birmingham | A rating |
| Towerhouse LLP | London | A rating |
| TowerPros Limited | Slough | A rating |
| Towers & Sanders Ltd | London | A rating |
| Towers Health and Racquets Club | Bedford | A rating |
| Towers Watson Limited | Surrey | A rating |
| Towertrend Limited t/a Honey Lane Care Home | Essex | A rating |
| Towerview Care Ltd | Burton-upon-Trent | A rating |
| TOWLER'S CHEMIST LIMITED | YORK | A rating |
| TOWN & COUNTRY CARE (BOSTON) LIMITED | Boston | A rating |
| Town & Country Veterinary Group | Banchory | A rating |
| Town and Country Care Home Ltd | Randalstown | A rating |
| TOWN AND COUNTY VALUERS SURVEYORS LTD | LONDON | A rating |
| TOWN AUTOS LIMITED | Bedford | A rating |
| Town Centre Apartments Ltd | Watford | A rating |
| TOWN CENTRE NEWS T/A PREMIER KVK MINI MARKET | CRAWLEY | A rating |
| Town Field Care LTD | London | A rating |
| TOWN GADGETS LTD | Croydon | A rating |
| Town Head Farm Products Limited | Skipton | A rating |
| Town Legal LLP | London | A rating |
| TOWN SHOP RETAIL LTD | Ilford | A rating |
| Town St Ltd | Derby | A rating |
| Town Tea Cafe Ltd | Hayes | A rating |
| Town Thorns Care Limited | Shrewsbury | A rating |
| Town Vets Limited | SOUTHPORT | A rating |
| Townfield Pharmacy Ltd | St Helens | A rating |
| TOWNHEAD RETAIL LTD T/A Shop Smart | Glasgow | A rating |
| Townhouse Group Limited | London | A rating |
| Towns End Double Glazing Ltd | London | A rating |
| Townsend Church of England School | St Albans | A rating |
| Townsend Group Europe Limited | London | A rating |
| Townsend Jackson Ltd T/A The Care Worker Agency | Southport | A rating |
| Townsend Life Care Ltd | Kent | A rating |
| Townsend Newsagents | Woolwich | A rating |
| TOWNSENDS MEDICA LIMITED | Walton On Thames | A rating |
| Townshend Landscape Architects Limited | London | A rating |
| Townville Recreation & Sports Club | Castleford | A rating |
| Towpath Cafe Ltd | London | A rating |
| Towyn Capel Residential Home | Trearddur Bay | A rating |
| TOYITO BRIGHTON LIMITED T/A O'Shio | Brighton | A rating |
| Toynamics UK and Ireland Ltd | Leicestershire | A rating |
| Toynbee Hall | London | A rating |
| Toyota | Derby | A rating |
| Toyota (GB) PLC | Epsom | A rating |
| Toyota Connected Europe Limited | London | A rating |
| Toyota Financial Services (UK) PLC | Epsom | A rating |
| Toyota Gazoo Racing Simulation UK | Epsom | A rating |
| Toyota Material Handling UK Limited | Slough | A rating |
| Toyota Tsusho Automobile London Holdings Ltd | London | A rating |
| Toyota Tsusho System Europe GmbH | London | A rating |
| Toyota Tsusho UK Ltd | London | A rating |
| TOYS MASTER LTD | ILFORD | A rating |
| Toys of Wood Oxford Ltd | Oxford | A rating |
| TOYS4YOU LTD | Birmingham | A rating |
| TOYWISE ORIGINAL LTD | MANCHESTER | A rating |
| Tozai Limited | Northwich | A rating |
| Tozaro Limited | Sharnbrook | A rating |
| TP Accounting & Consultancy Ltd | Manchester | A rating |
| TP AEROSPACE TECHNICS UK LTD | Castle Donington | A rating |
| TP BRICKWORK LTD | Dartford | A rating |
| TP Care at Homes Ltd | Bournemouth | A rating |
| TP ICAP GROUP SERVICES LIMITED | LONDON | A rating |
| TP INFINITY UK LTD | KENTON | A rating |
| TP Jordeson & Co Ltd (T/A Jordeson Timber) | YORK | A rating |
| TP Legal Ltd | London | A rating |
| TP MANUFACTURING LIMITED T/T PENDOCK | Telford | A rating |
| TP Matrix Ltd | Oldham | A rating |
| TP Technologies Ltd | Bexleyheath | A rating |
| TP Vision United Kingdom Ltd | Windsor | A rating |
| TP-Link UK Limited | Reading | A rating |
| TPBI UK Limited | Newcastle under Lyme | A rating |
| TPE LONDON LTD | barking , London | A rating |
| TPG EUROPE, LLP | LONDON | A rating |
| TPG The Project Group Ltd | Lurgan | A rating |
| TPH Global LTD | Twickenham | A rating |
| TPI Composites UK Company Limited | Birmingham | A rating |
| TPL Vision UK Ltd | Perth | A rating |
| TPM INSULATION LTD | CROUGHTON | A rating |
| TPM Landscape Limited | Manchester | A rating |
| TPM Studio | London | A rating |
| TPPC Ltd | Crawley | A rating |
| TPS BUSINESS LTD | Gravesend | A rating |
| TPT Fire Maintenance Ltd | Basingstoke | A rating |
| TPXimpact Limited | London | A rating |
| TPZ Group Ltd. | Witney | A rating |
| TQ IMA Limited | London | A rating |
| TQ TRADERS LTD | Manchester | A rating |
| TQC Ltd | Nottingham | A rating |
| TQES Limited | London | A rating |
| Tquila Automation Ltd. | London | A rating |
| TR FORENSIC ACCOUNTANTS LTD | MANCHESTER | A rating |
| TR GRANTS LIMITED | Romford | A rating |
| TR NUTRITION AND FOOD SERVICES LTD | London | A rating |
| TR TRADE LTD | London | A rating |
| TR Traders Ltd | Manchester | A rating |
| TR Wings Limited T/A Wingers | Cannock | A rating |
| TR7 Ltd | Cheltenham | A rating |
| Traackr | Richmond | A rating |
| TRAC Associates Limited | Bury | A rating |
| TRAC Energy Limited | Dyce | A rating |
| Trace First Limited | County Down | A rating |
| Trace First Ltd | Moira | A rating |
| Trace Group Limited | London | A rating |
| Trace One Ltd | Hemel Hempstead | A rating |
| TRACE Publicity Ltd | London | A rating |
| TRACE Wildlife Forensics Network Limited | London | A rating |
| Tracebit Limited | London | A rating |
| TRACELIGHT LTD | London | A rating |
| Tracelink Europe Limited | Woking | A rating |
| Tracer Management System Limited | BIRMINGHAM | A rating |
| Tracerco Ltd | Billingham | A rating |
| Tracey Bothers Ltd | Enniskillen | A rating |
| Tracey Concrete Ltd | Enniskillen | A rating |
| Track 24 Limited | London | A rating |
| Track Civil Engineering Solutions | Kilmarnock | A rating |
| Track Consulting Limited | Cardiff | A rating |
| Track Demons Racing | Truro | A rating |
| Track Engineering Construction Services Limited | Chelmsford | A rating |
| Track Record Global Ltd | Bicester | A rating |
| Track24 Limited | London | A rating |
| Trackars Limited | Belfast | A rating |
| Tracker Group Limited | London | A rating |
| Trackershop Ltd | London | A rating |
| TrackMe Limited | London | A rating |
| Trackrecord Construction Ltd | Milton Keynes | A rating |
| Tracmobility Holdings Limited | London | A rating |
| Tracsis PLC | Leeds | A rating |
| Tract Capital Management UK Ltd | London | A rating |
| TRACTABLE LTD | LONDON | A rating |
| Tractebel France - Coyne et Bellier | London | A rating |
| TRAction Fintech Ltd | London | A rating |
| Tradama Energy Ltd | London | A rating |
| Trade Adge Ltd t/a Hatter House Cafe | Bristol | A rating |
| TRADE AFTERMARKET LIMITED | Hayes | A rating |
| Trade and Smile UK Ltd | Maidstone | A rating |
| Trade Axe Limited | London | A rating |
| TRADE BATHROOM AND TILES LIMITED | Derby | A rating |
| TRADE CONSULTING LTD | GREAT MISSENDEN | A rating |
| Trade Drive Motors Limited | Sandy | A rating |
| Trade Fair International Limited | Lincoln | A rating |
| TRADE FASHION UK LIMITED | London | A rating |
| TRADE FURNITURE COMPANY LTD | Birstall | A rating |
| Trade Kitchens By DTN Ltd | Oldham | A rating |
| Trade Ledger Limited | London | A rating |
| Trade Lines Shop Equipment Limited | Birmingham | A rating |
| TRADE MARK UNION LIMITED | HOVE | A rating |
| Trade Mark Wizards Limited | London | A rating |
| Trade Mastermind Limited | Peterborough | A rating |
| Trade Nation Financial UK Ltd | London | A rating |
| Trade Paintings Services Ltd | Deptford | A rating |
| Trade Price Tyres Limited | Newport | A rating |
| Trade Remedies Authority | Reading | A rating |
| TRADE REPUBLIC BANK GMBH - LONDON BRANCH | London | A rating |
| Trade Smart Motors LTD | Croydon | A rating |
| TRADE TYRES (BLACKBURN) LTD | BLACKBURN | A rating |
| Trade your Phone Ltd | Bradford | A rating |
| TRADEAA LIMITED | East Kilbride | A rating |
| Tradebe Management Limited | Marlow | A rating |
| Tradebridge Financial Technologies Limited | London | A rating |
| Tradebyte Software Limited | Cheltenham | A rating |
| Tradecore International Ltd | Chandlers Ford | A rating |
| Tradeflow Consulting Ltd | Greenford | A rating |
| Tradeforce Air Conditioning Limited | London | A rating |
| Tradego Limited | Ilford | A rating |
| Tradehouse Ltd | Coventry | A rating |
| TRADELINK PRIVATE LTD | BIRMINGHAM | A rating |
| TRADELINK WOOD PRODUCTS LTD | LONDON | A rating |
| TRADELINK WOOD PRODUCTS LTD. | London | A rating |
| Tradelink Worldwide Limited | London | A rating |
| Tradepoint Systems UK Ltd | London | A rating |
| TRADEQO UK LIMITED | Southall | A rating |
| TRADER STOP LIMITED | London | A rating |
| TRADER Wembley Ltd | Wembley | A rating |
| Traders Digital Marketing Ltd | Croydon | A rating |
| Trades Union Congress | London | A rating |
| Tradeshift Network Limited | London | A rating |
| TRADEST LTD T/A CARLTON COURT HOTEL | Eastbourne | A rating |
| TRADESTONE HEATING LTD | Bristol | A rating |
| Tradeteq Ltd | London | A rating |
| Tradetower Ltd | Stanmore | A rating |
| Tradeweb Europe Limited | London | A rating |
| Tradewind Recruitment Ltd | LONDON | A rating |
| TRADEZONE GLOBAL LIMITED | LONDON | A rating |
| Tradify (UK) Limited | London | A rating |
| Trading 212 UK Ltd | London | A rating |
| Trading Address - BUSINESS UK SOLUTIONS | St Albans | A rating |
| Trading Central International Limited | London | A rating |
| Trading Essentials Ltd | London | A rating |
| TRADING EXPERTS LTD | London | A rating |
| Trading Science Limited | Warwick | A rating |
| Trading Solutions UK Ltd | London | A rating |