| TEXAS PIZZA LTD | Worthing | A rating |
| TEXAS WINGS LIMITED | Manchester | A rating |
| Texcel Technology Plc | London | A rating |
| Texel Finance Ltd | London | A rating |
| Texere Publishing | Knutsford | A rating |
| Texere Publishing Limited | Knutsford | A rating |
| Texmodel Limited | London | A rating |
| Texon Non Woven Ltd | Skelton | A rating |
| Textile & Graphics Solutions Ltd | Leicester | A rating |
| Textile Enterprises Ltd | Leicester | A rating |
| Textron Limited | London | A rating |
| Texuna Technologies Limited | Putney | A rating |
| Texuna Technologies Limited | Isleworth | A rating |
| Teya Europe Ltd | London | A rating |
| Teya Services Ltd | London | A rating |
| Teya Services Ltd. | London | A rating |
| Teya Solutions Ltd | London | A rating |
| Teybridge Capital (UK) Limited | London | A rating |
| TEYO FOOD BEARWOOD LIMITED T/A SKVP | Birmingham | A rating |
| TEYO FOOD SERVICE LTD T/A SKVP | WEST BROMWICH | A rating |
| TEZALI COMPANY LTD | London | A rating |
| Tezz UK Ltd | City Of London | A rating |
| TF (Leicester) Limited T/A The Frame | Leicester | A rating |
| TF Family Office Limited | London | A rating |
| TF Global Markets (UK) Limited | LONDON | A rating |
| TF Snacks Ltd t/a Tooty Fruity | London | A rating |
| TF TRADERS LTD | Belvedere | A rating |
| TFC | Welling | A rating |
| TFC 2020 Limited | Towyn | A rating |
| TFC CATFORD LTD | London | A rating |
| TFC Chicken and Pizza Ltd | Southall | A rating |
| TFC Dalston Limited | London | A rating |
| TFC Legal Limited | London | A rating |
| TFC Leisure Limited trading as Rocks Lane Multi Sports Centres | London | A rating |
| TFDD Services Limited | Milton Keynes | A rating |
| TFF Group Limited | Sutton Coldfield | A rating |
| TFF REALTY LTD | London | A rating |
| TFG Asset Management UK Limited | LONDON | A rating |
| TFG Brands (London) Limited | London | A rating |
| TFG Finance Ltd | London | A rating |
| TFG LONDON LIMITED | London | A rating |
| TFIRE DRYLINING LIMITED | London | A rating |
| TFix | Surrey | A rating |
| TFL Management Services Limited | London | A rating |
| TFLI Limited | Tytherington Business Park | A rating |
| TFP Fertility Group Limited | Oxford | A rating |
| TFP Fertility Holding Ltd | Oxford | A rating |
| TFS Buying Ltd | Manchester | A rating |
| TFS Trial Form Support Limited | London | A rating |
| TFSE Products Ltd | West Molesey | A rating |
| TFSS Limited TA TFS Services | Hemel Hempstead | A rating |
| TFU Ltd | Sheffield | A rating |
| TFU Ltd t/a Go Local | Sheffield | A rating |
| TFW Group Ltd t/a Terra Firma | Exeter | A rating |
| TG & K Fisher Ltd | Carlisle | A rating |
| TG COLLINS SOLICITORS | BENFLEET | A rating |
| TG Group Management Services UK Ltd | London | A rating |
| TG PRIME PROPERTY SOLUTIONS LTD | London | A rating |
| TG THANDA GARAM LIMITED | Wishaw | A rating |
| TG Tunnelling | London | A rating |
| TG4 SCAFFOLDING LTD | Romford | A rating |
| TGA Building Services Consulting Engineers Limited | London | A rating |
| TGA Consulting Engineers LLP | Newcastle upon Tyne | A rating |
| TGA Industries Limited | Brighton | A rating |
| TGA Plumbing and Construction Ltd | London | A rating |
| TGE Gas Engineering GmbH | Manchester | A rating |
| TGH CONSTRUCTION LTD | ENFIELD | A rating |
| TGI Life Sciences Limited | Crawley | A rating |
| TGI SPORT MARKETING (UK) LIMITED | London | A rating |
| TGK Foods Ltd | Craigavon | A rating |
| TGK Retail Ltd | Chelmsford | A rating |
| TGL GLOBAL LOGISTICS UK LTD | London | A rating |
| TGL Services (UK) Limited | London | A rating |
| TGLE HOLDINGS LIMITED T/A THE GOOD LIFE EATERY | LONDON | A rating |
| TGM CONSTRUCT LTD | Hatfield | A rating |
| TGP GRILL LTD | Glasgow | A rating |
| TGP International Limited | London | A rating |
| TGP Landscape Architects | GLASGOW | A rating |
| TGRC Ltd trading as The Green Recruitment Company | London | A rating |
| TGS 4C Offshore Limited | Norwich | A rating |
| TGS AUTOMOTIVE LIMITED | Stoke on Trent | A rating |
| TGS GEOPHYSICAL COMPANY (UK) LIMITED | Woking | A rating |
| TGS RETAIL LIMITED T/A SHELL | Reading | A rating |
| TGS STORES LIMITED | HAVANT | A rating |
| TGS UK LTD | Bristol | A rating |
| TGT Oilfield Services UK Limited | Aberdeen | A rating |
| TGT Oilfield Services UK Ltd | Aberdeen | A rating |
| TGTS LONDON LTD | London | A rating |
| TGW Intrinsic LLP | London | A rating |
| TGW Law | London | A rating |
| TGW LTD | MARKET HARBOROUGH | A rating |
| TH BAKER | Kidderminster | A rating |
| TH DAY CARE LTD T/A Shooting Stars Pre School Nursery | Oldham | A rating |
| TH IT Services Ltd | Heckmondwike | A rating |
| TH Languages Ltd t/a Talking Heads | Sheffield | A rating |
| TH UK & Ireland Limited | Egham | A rating |
| THAA Architects | Newcastle upon Tyne | A rating |
| THAAL (KNOTTINGLEY)LIMITED , T/A Thaal Brotherton | KNOTTINGLEY | A rating |
| Thaara Service Station Limited | Lampeter | A rating |
| Thaara UK Limited | Netherfield | A rating |
| Thaddaeus Ropac Gallery | London | A rating |
| Thadsa Forecourts Ltd | Lowton | A rating |
| THAHANEE LTD | London, | A rating |
| Thai -British Buddhist Trust (Wat MahathatTemple) | Burton-on-Trent | A rating |
| THAI AIRWAYS INTERNATIONAL | LONDON | A rating |
| Thai Arawan Limited | London | A rating |
| Thai Balcony Limited | Bath | A rating |
| Thai Bexleyheath Limited | Bexleyheath | A rating |
| Thai Buddharam Temple and Cultural Centre SCIO | Aberdeen | A rating |
| THAI BY THAI LTD | Wrexham | A rating |
| Thai Charms Limited | London | A rating |
| Thai Corner Crewe 2021 Ltd | Crewe | A rating |
| Thai Corner Dean Clough Ltd | Halifax | A rating |
| Thai Emerald Limited | Evesham | A rating |
| THAI GALLERY LIMITED | HEREFORD | A rating |
| Thai Haven Ltd | London | A rating |
| Thai Home Surrey Ltd | Godalming | A rating |
| Thai Kosai Limited | London | A rating |
| Thai Leisure Group Limited | York | A rating |
| THAI LEMON GRASS & COCONUT LTD | Stockport | A rating |
| Thai Limited | Ware | A rating |
| THAI LOUNGE LIMITED | London | A rating |
| Thai Manee Limited t/a LAYANA medispa | London | A rating |
| Thai Marina Limited | Eastbourne | A rating |
| Thai Massage Academy LTD | Norwich | A rating |
| Thai Orchid & Murray Arms | Lockerbie | A rating |
| THAI ORCHID ELTHAM LTD | London | A rating |
| Thai Orchid Restaurant Limited | Banbury | A rating |
| Thai Polo Team | Reading | A rating |
| Thai Rose Ltd | London | A rating |
| Thai Sea Ltd | Saltburn by the Sea | A rating |
| Thai Seasons Ltd | Aberdeen | A rating |
| Thai Siam Relax Therapy Ltd | Harrogate | A rating |
| THAI STAR ENTERPRISE LIMITED | St Albans | A rating |
| Thai T&P Ltd | Haslemere | A rating |
| Thai table restaurant | Caversham | A rating |
| THAI TANA LTD | Kettering | A rating |
| Thai Taste Limited | London | A rating |
| THAI THAMES GRAB LIMITED | Twickenham | A rating |
| Thai Therapy Limited | Richmond | A rating |
| Thai Touch Therapy | London | A rating |
| Thai Village Spa Limited | Surrey | A rating |
| Thai Warung | Maidenhead | A rating |
| Thai Weddings and Functions LTD | Brooke | A rating |
| THAI WEIR LIMITED | Bath | A rating |
| Thai-Tasty Limited | Cookham | A rating |
| THAIHUT LTD | Wembley | A rating |
| Thaili Ltd T/A Pokhara Delight | Henley-on-Thames | A rating |
| THAINESE KITCHEN LIMITED | London | A rating |
| THAIPHATTHANA LIMITED | CRAWLEY | A rating |
| Thairama Ltd t/a Rumwong Thai Restaurant | GUILDFORD | A rating |
| Thairama Restaurants Ltd t/a The Thai Terrace | Guildford | A rating |
| Thakur Consultancy Services | Northampton | A rating |
| Thakur-Chabert Limited | Uxbridge | A rating |
| THALASIC LTD | Liverpool | A rating |
| Thaleron Limited | Woking | A rating |
| Thales UK Limited | Reading | A rating |
| THALI & TANDOOR LTD | Bedford | B rating |
| Thali Tray | Newcastle | A rating |
| THALIA WASTE MANAGEMENT LIMITED | London | A rating |
| Thallo Limited | Basildon | A rating |
| Thaman Khadka t/a The Bank Restaurant | Norfolk | A rating |
| Thamayanthi varunatheepan t/as Best One | Carshalton | A rating |
| THAMBAPILLAI THANABALASINGAM T/A BELLENDEN FOOD AND WINE | LONDON | A rating |
| THAMBIAH SUTHARSAN T/A SOUTHLAKE PARADE CONVENIENCE STORE | READING | A rating |
| Thame Partnership Academy Trust | Thame | A rating |
| Thame Town Cricket Club | Thame | A rating |
| Thameen Fragrance Limited | London | A rating |
| Thamel 91 Asian Food Company Ltd t/a 2020 World Buffet Restaurant | Peterborough | A rating |
| Thames & Hudson Ltd | London | A rating |
| Thames Accountants & Co Ltd | London | A rating |
| Thames C&C Ltd T/A Thames Cash and Carry | Croydon | A rating |
| Thames City Property Development Ltd | London | A rating |
| THAMES COMPOSITES LTD | READING | A rating |
| Thames Distillers Limited | Crawley | A rating |
| Thames Ditton Retail Limited | Thames Ditton | A rating |
| THAMES FRESH FRUIT AND VEGETABLES LIMITED T/A Daily Needs | Ashford | A rating |
| THAMES HIGHTECH LTD | LONDON | A rating |
| Thames Homecare Service LTD | London | A rating |
| Thames Homecare Services (North) Limited | Sheffield | A rating |
| Thames Import Export Ltd | Rainham | A rating |
| Thames Mammography Limited | London | A rating |
| Thames Marketing Consultants Ltd | Bridgend | A rating |
| Thames Meditation Society | Selsdon | A rating |
| Thames Mortgages Ltd | London | A rating |
| Thames Network Ltd T/A AB STATION | London | A rating |
| THAMES PREMIER SERVICES LTD | LONDON | A rating |
| Thames Private Limited | Reading | A rating |
| Thames Reach Charity | London | A rating |
| THAMES RESTEK UK LTD | Saunderton | A rating |
| Thames Technology | Bracknell | A rating |
| Thames Timber & Builders Merchant Ltd | Slough | A rating |
| Thames Town Limited | London | A rating |
| Thames Valley Construction & Civil Engineering Ltd | NEWPORT | A rating |
| Thames Valley Fabrication Ltd | Slough | A rating |
| Thames Valley Insulation Limited | Slough | A rating |
| Thames Water Utilities Limited | Reading | A rating |
| THAMESLINK LOGISTICS LTD | Wakefield | A rating |
| Thamesmead Eye Care Ltd | london | A rating |
| Thamesmead School | Shepperton | A rating |