| StackAdapt UK Limited | London | A rating |
| Stackflow Technologies UK Ltd | London | A rating |
| StackHPC Ltd | Bristol | A rating |
| STACKIA LIMITED | Poyle | A rating |
| Stacklok UK Ltd | London | A rating |
| StackOne Technologies Ltd | Newbury | A rating |
| Stacks AI Limited | London | A rating |
| Stacks of Tyres Limited | Stoke on Trent | A rating |
| Stackseer Technologies Ltd. | Barnet | A rating |
| STACKSTUDIO DIGITAL LTD | London | A rating |
| STACKT LTD | LONDON | A rating |
| Stackwiser Limited | Fareham | A rating |
| Stadco Limited | Telford | A rating |
| Stadion Limited | Tonbridge | A rating |
| Stadium Traffic Management Ltd | Coventry | A rating |
| Stadler Rail Service UK Ltd | Liverpool | A rating |
| Staff Management Limited | London | A rating |
| STAFF ON SERVICE LIMITED | LONDON | A rating |
| Staff Resources Ltd | Salford (Greater Manchester) | A rating |
| STAFF SUPPORT SERVICES LIMITED | Slough | A rating |
| Staff-Kingdom Recruitment Agency Ltd | London | A rating |
| Staffa Health | Alfreton | A rating |
| Staffan Tollgard Limited | London | A rating |
| Staffcharter Limited | Lodnon | A rating |
| Staffconnect Ltd | Nottingham | A rating |
| Staffgroup International Limited | London | A rating |
| STAFFING PLUS LTD | Edgbaston | A rating |
| Staffing Professionals Ltd | London | A rating |
| Staffing Solutions 24/7 Ltd | Hounslow | A rating |
| Stafford Capital Partners Limited | London | A rating |
| Stafford Cricket Club | Stafford | A rating |
| STAFFORD FOODS CENTRE LTD | Walsall | A rating |
| Stafford Health and Wellbeing | Stafford | A rating |
| Stafford Lifestyle Express Limited | Walsall | A rating |
| STAFFORD PIZZA LIMITED T/A Caprinos Pizza | Stafford | A rating |
| Stafford Stores & Post Office | Norwich | A rating |
| Staffordshire Chiropractic Clinics Limited | Newcastle Under Lyme | A rating |
| Staffordshire County Council | Stafford | A rating |
| Staffordshire Leisure Group Ltd | Newcastle-under-Lyme | A rating |
| Stag Chemist Birmingham Limited | Birmingham | A rating |
| STAG Construction Limited | Bournemouth | A rating |
| STAGE AND LIGHT SERVICES LIMITED | ILFORD | A rating |
| STAGE DOOR TENBY LTD | Leeds | A rating |
| STAGE DOOR TENBY LTD | Quorn | A rating |
| Stage Enterprises Limited | London | A rating |
| Stage Entertainment UK Limited | London | A rating |
| Stagecoach Holdings Limited | Perth | A rating |
| Stagemount Limited | Nottingham | A rating |
| Stags of London Limited | London | A rating |
| Stagwell Media (NRG) UK Limited | London | A rating |
| Stagyes International Limited | Nottingham | A rating |
| Staht | Stourbridge | A rating |
| STAINCLIFFE FRESH GROCERS UK LTD | Heckmondwike | A rating |
| Staines Chiropractic Ltd | STAINES-UPON-THAMES | A rating |
| Staines Diesels & Electrical Services Ltd | Englefield Green | A rating |
| Staines Motors Ltd | Staines-upon-Thames | A rating |
| Staines Visionplus Limited t/a Specsavers | Staines | A rating |
| Stainless Balustrade Solution | Luton | A rating |
| Stainless Games Ltd | Newport | A rating |
| STAINLESS GREEN LTD | London | A rating |
| Stainless Metalcraft (Chatteris) Ltd | Chatteris | A rating |
| Stainless Steel Vessels Limited | Leeds | A rating |
| Stainless UK Limited | Sheffield | A rating |
| Stainless Wire Supplies Ltd | Ludlow | A rating |
| STAINWAY SUPERMARKET | Middlesex | A rating |
| Stair Estates | Stranraer | A rating |
| Stair Field Limited | Croydon | A rating |
| Stak Construction Ltd | London | A rating |
| Stakeholder Democracy Network | London | A rating |
| STALBRIDGE RETAIL LTD | Dorset | A rating |
| STALIS LIMITED | Banbury | A rating |
| Stallion Commercials LTD | Birmingham | A rating |
| Stallion Developers Ltd | Dartford | A rating |
| STALLIONS SOLUTIONS LTD | WALSALL | A rating |
| Stallions Technologies Ltd | WOLVERHAMPTON | A rating |
| Stalwart Odrit Achievers Ltd | Wolverhampton | A rating |
| STAM (LONDON) LIMITED | Harrow | A rating |
| Stamford Bridge Cricket Club | York | A rating |
| Stamford Dental Care | STAMFORD | A rating |
| Stamford Healthcare Limited | Annesley | A rating |
| Stamford Hill Computers Ltd | London | A rating |
| Stamford Hill Group Practice | London | A rating |
| Stamford House Dental Practice | Axminster | A rating |
| Stamos Yeoh architects LTD | London | A rating |
| Stamp Out Poverty | London | A rating |
| STAN WEST LTD T/A SUBWAY | TROWBRIDGE | A rating |
| Stanborough School | Welwyn Garden City | A rating |
| STANBRIDGE HOUSE | WEST SUSSEX | A rating |
| STANBROOK ABBEY | YORK | A rating |
| Standard Advisory London Limited | London | A rating |
| Standard BioTools UK | London | A rating |
| STANDARD CARE LIMITED | London | A rating |
| Standard Chartered Bank | London | A rating |
| Standard Cricket Club | Coventry | A rating |
| Standard Focus Ltd | Edinburgh | A rating |
| Standard Health Ltd | Harrow | A rating |
| Standard Information Services Limited | London | A rating |
| Standard Ledger UK Limited | Cradley | A rating |
| Standard Nursing Agency and Care Services Ltd. | London | A rating |
| Standard Oxford 03 Limited | Oxford | A rating |
| Standard Patent Glazing Ltd | Dewsbury | A rating |
| Standard Signs & Traffic Systems | Newport | A rating |
| Standard Sweet Centre | Coventry | A rating |
| Standard UK Management Limited | London | A rating |
| Standardair Limited | Marlow | A rating |
| Standards Board for Alternative Investments Ltd | London | A rating |
| StandardX | London | A rating |
| STANDBUILDER.CO.UK LTD T/A Standbuilder | London | A rating |
| Standens Barn Supermarket Ltd | Standens Barn | A rating |
| Standex International Limited | Stockport | A rating |
| Standing on Giants Ltd. | Brighton | A rating |
| Standing Together Against Domestic Abuse | London | A rating |
| Standish Booz Ltd | Liverpool | A rating |
| Standish Management (UK) Ltd | London | A rating |
| Standish Management UK Limited | London | A rating |
| Standish Medical Practice | Wigan | A rating |
| Standley Design and Build Ltd | Wimbledon | A rating |
| Standley Holdings | Eastbourne | A rating |
| STANDON NEWS LTD | Gravesend | A rating |
| STANDON SOLUTIONS LIMITED | Hertford | A rating |
| STANDWALK LTD | Manchester | A rating |
| StandWithUs UK | London | A rating |
| STANELCO RF TECHNOLOGIES LIMITED | Southampton | A rating |
| Stanesby Architecture Ltd | London | A rating |
| Stanfield Nursing Home Limited | Worcester | A rating |
| STANFORD EDUCATION & CULTURAL ASSOCIATION | STANFORD-LE-HOPE | A rating |
| STANFORD INDUSTRIAL CONCRETE FLOORING LIMITED | West Bromwich | A rating |
| Stanga Ltd | Towcester | A rating |
| STANHILL HOTEL LIMITED | Horley | A rating |
| Stanhope AI Ltd | London | A rating |
| Stanhope Brasted Ltd | Westerham | A rating |
| Stanhope Capital LLP | London | A rating |
| Stanhope Gate Architecture Ltd | London | A rating |
| STANHOPE SUPERMARKET LTD | BISHOP AUCKLAND | A rating |
| Stanhope-Seta Limited | Chertsey | A rating |
| Stanley and Stella UK Branch | Cheltenham | A rating |
| Stanley Capital Partners LLP | London | A rating |
| Stanley Consultants, Inc | Suton | A rating |
| Stanley David and Associates Limited | Milton Keynes | A rating |
| Stanley Dock Hotel Limited | Liverpool | A rating |
| Stanley Electric (U.K.) Company Limited | Bracknell | A rating |
| Stanley Medical Centre | Perth | A rating |
| Stanley Medical Centre | Liverpool | A rating |
| Stanley Park Evangelical Free Church | Carshalton | A rating |
| Stanley Park Londis | Carshalton | A rating |
| Stanley Specsavers Limited | Stanley | A rating |
| STANLEY WINES LTD | Warrington | A rating |
| STANLEY WINES PLATT BRIDGE LTD T/A STANLEY WINES | St Helens | A rating |
| Stanleybet Holdings Limited and Subsidiary Companies | LIVERPOOL | A rating |
| Stanmore Associates Limited | Basingstoke | A rating |
| Stanmore Associates Ltd t/a In-Home Care Basingstoke | Basingstoke | A rating |
| Stanmore College | Stanmore | A rating |
| Stanmore Cricket CLub | Stanmore | A rating |
| Stanmore Insurance Brokers Ltd | LITTLE LEVER | A rating |
| STANMORE KITCHENS LTD | London | A rating |
| Stanmore Medical Group | Stevenage | A rating |
| Stanmore Shops Limited | Winchester | A rating |
| STANMORE SOLUTIONS LTD | Corby | A rating |
| Stanmore Stores Ltd | Winchester | A rating |
| Stanna (UK) Limited | East Leake | A rating |
| Stannah Stairlifts Limited | Andover | A rating |
| STANNP LTD | Barnstaple | A rating |
| STANSONS GROUP LTD | GODSTONE | A rating |
| Stansted Laboratories Ltd | Barking | A rating |
| Stantec UK Ltd | Warrington | A rating |
| Stanton House Limited | London | A rating |
| Stanton Pharma Ltd T/A Stoney Stanton Pharmacy | Coventry | A rating |
| Stanton Surgery | Bury St Edmunds | A rating |
| Stanton Williams Limited | London | A rating |
| Stantonbury School | Milton Keynes | A rating |
| Stanway Green Lodge LLP | Colchester | A rating |
| Stanwell Road Surgery | Ashford | A rating |
| Stapely Jewish Care Home Limited | Liverpool | A rating |
| STAPLE BAR LTD TA Ble???? Steakhouse | Staplehurst | A rating |
| Stapleford View Limited | Nottingham | A rating |
| Staplehurst Pharma Ltd | Staplehurst | A rating |
| Staples Capital Ltd | London | A rating |
| Stapleton House Ltd | Jarrow | A rating |
| Star 5 in One | Glasgow | A rating |
| Star Academies | Blackburn | A rating |
| Star Accountancy Services UK Ltd | Stourbridge | A rating |
| Star Amusements Limited | Southend on Sea | A rating |
| Star Angel Care Limited | Barking | A rating |
| STAR ANISE PVT LTD T/A THAKKOLAM RESTAURANT | Sheffield | A rating |
| STAR AUTO REPAIR LTD TA CAR BODY REPAIR | London | A rating |
| Star Autos Stoke LTD | stoke on trent | A rating |
| Star Beauty Nails Limited T/A Star Beauty Lounge | Fareham | A rating |
| STAR BREAKDOWN RECOVERY LIMITED | London | A rating |
| Star Bright Day Nursery limited | London | A rating |
| STAR BUILDING AND HEATING SOLUTIONS LTD | Burton-On-Trent | A rating |
| STAR CAFE (BURNLEY) LTD | Burnley | A rating |
| STAR Capital Partnership LLP | London | A rating |
| Star Care Lodge | Gillingham | A rating |
| Star Care Solutions Limited T/A Star Care Solutions | Aberkenfig | A rating |
| Star Care UK Ltd | Ilford | A rating |
| STAR CARS LONDON LTD | London | A rating |
| STAR CASH & CARRY (BRISTOL) LTD | Bristol | A rating |
| STAR CITY MOTORS LIMITED | Birmingham | A rating |
| STAR COACHES OF BATLEY LIMITED | Batley | A rating |
| Star Concept LTD | Horsham | A rating |