| Sophrena Limited | London | A rating |
| Sopra Steria Limited | Newcastle Upon Tyne | A rating |
| SOPRANOS PIZZA NE LTD T/A Sopranos Pizza | MIDDLESBROUGH | A rating |
| Sopro Group Limited | Poole | A rating |
| SoProduce Limited | Birmingham | A rating |
| SOPS HEALTHCARE LTD | Cheadle | A rating |
| SOR Energy Ltd | Canncok | A rating |
| SORA Risk Solutions Limited | Winchester | A rating |
| SORACOM CORPORATION, LTD. | London | A rating |
| SORCE LIMITED | Berkshire | A rating |
| SORCH Ltd T/A Shire Oak House | Walsall | A rating |
| Sordo & Co Limited T/A Speck Delicatessen | London | A rating |
| Sordo Madaleno Limited | London | A rating |
| SORE FINGERS SUMMER SCHOOLS | FROME | A rating |
| Sore Paws Veterinary Clinic Ltd | Newton Aycliffe | A rating |
| SOREJIDOR LIMITED | Sunderland | A rating |
| Sorella Restaurant Limited | Oldham | A rating |
| Soreto Limited | London | A rating |
| SORG LIMITED | TUNBRIDGE WELLS | A rating |
| Sorint Lab UK | London | A rating |
| Sornaraj Private Limited | Twickenham | A rating |
| Soroco Private Limited | London | A rating |
| SORONY LIMITED T/A SUBWAY | Kenilworth | A rating |
| Sorores Consultancy Limited | London | A rating |
| Soros Capital Management UK LLP | London | A rating |
| SORS GT UK LTD | Manchester | A rating |
| SORT INSURE LIMITED | Northampton | A rating |
| Sort Legal Limited | Derby | A rating |
| Sort Project Management Limited | London | A rating |
| Sort Solution Ltd | Luton | A rating |
| Sorted Healthcare Ltd. | Fleet | A rating |
| Sortera Bio Limited | Cambridge | A rating |
| Sortida Limited | Manchester, | A rating |
| SORTIE LIMITED | LONDON | A rating |
| SORTLIST LTD | Oxford | A rating |
| SOS Homecare Ltd | St Helens | A rating |
| SOS SALES LTD | Armagh | A rating |
| SOS??????????????? Convenience Store | Southend on Sea, Essex | A rating |
| SoSafe Security Limited | London | A rating |
| Sosuv Consulting Private Limited | Iver | A rating |
| Soteria Children's Services Group Limited | Darlington | A rating |
| Soteriou Banerji | London | A rating |
| Sothall Medical Centre | Sheffield | A rating |
| Sotheby's | London | A rating |
| Sotheby's International Realty Ltd | London | A rating |
| SOTI Ltd | Solihull | A rating |
| Sotto Sotto Ltd | Bath | A rating |
| Soufflet Bairds Malt Ltd | Burton-on-Trent | A rating |
| Souhil Laib Ltd | London | A rating |
| Souk & Savour Ltd T/A Rahmath | BRADFORD | A rating |
| Soul Assembly Ltd | Leamington Spa | A rating |
| Soul Church Ltd | Norwich | A rating |
| Soul Development Services Limited | London | A rating |
| Soul Feet Ltd | Ballyclare | A rating |
| SOUL FOOD JESMOND LTD | TYNE AND WEAR | A rating |
| Soul Perform Ltd | Bristol | A rating |
| Soul Water Sauna | Edinburgh | A rating |
| Soulbei UK ltd | Hampton | A rating |
| SoulCycle London, Ltd | London | A rating |
| SOULECARE AND HELP LTD | Essex | A rating |
| Soulfood Spices Limited t/a The Ampleforth Arms | Oxford | A rating |
| Soulfresh UK LIMITED | London | A rating |
| SOUMI & SOBI LTD t/as Holmsdale Mini Market (Company No. 10613490) | CARDIFF | A rating |
| Sound and Music | London | A rating |
| SOUND CITY (LIVERPOOL) LIMITED | Liverpool | A rating |
| Sound Credit TV Limited | Dartford | A rating |
| Sound Diplomacy Limited | London | A rating |
| Sound Point Capital Management UK LLP | London | A rating |
| Sound Roots | Littleborough | A rating |
| Sound UK Arts | Bristol | A rating |
| Soundhush Limited | High Wycombe | A rating |
| SOUNDLY ELECTRICS (UK) CO. LTD | WOLVERHAMPTON | A rating |
| Soundmouse Ltd | London | A rating |
| SOUNDPROMOTERLTS LTD | Birmingham | A rating |
| Soundproofing R Us Limited | Sutton | A rating |
| Soundtrap Limited | Warwick | A rating |
| Soundwaveslighting ltd | Southall | A rating |
| Soup Ltd Trading as Pepes Piri Piri | Newport | A rating |
| SOUPYAKULT LTD T/A Chims Thai | Surrey | A rating |
| SouqboxLtd | newbury | A rating |
| Source Bioscience (Storage) Limited (Trading as Astoriom) | Rochdale | A rating |
| Source Code Control Limited | Reading | A rating |
| Source Corporation Ltd | London | A rating |
| Source EV UK Limited | London | A rating |
| Source Group International Limited | Addlestone | A rating |
| Source Information Services Limited | London | A rating |
| SourceBio International Limited | Nottingham | A rating |
| Sourcechange Limited | London | A rating |
| Sourceful Ltd | Manchester | A rating |
| SOURCEFUSE LIMITED | LONDON | A rating |
| Sourcing Playground | Wimborne | A rating |
| SOURCX | London | A rating |
| Sourdough Sophia | London | A rating |
| Sourse Ltd | Manchester | A rating |
| Sousa World Gourmet Ltd | Reigate | A rating |
| SOUSOU PARTNERS LLP | LONDON | A rating |
| SOUSTA BRISTOL LIMITED | Bristol | A rating |
| South & East Leeds General Practice Group Ltd | Leeds | A rating |
| South & West Motors Ltd | Bath | A rating |
| South African Congregation | Tunbridge Wells | A rating |
| South African Foods Ltd | Watford | A rating |
| South African High Commission | London | A rating |
| SOUTH AMERICAN AGENCY LIMITED | KENT | A rating |
| South American Mission Society Ireland | Lurgan | A rating |
| South and City College Birmingham | Birmingham | A rating |
| South Asian Arts-uk (SAA-uk) | Leeds | A rating |
| South Axholme Practice | Doncaster | A rating |
| South Ayrshire Council | Ayr | A rating |
| South Bank Academies | London | A rating |
| South Bank Colleges | London | A rating |
| South Bank Hotel Management Company Limited | London | A rating |
| South Bank Students' Union Ltd | London | A rating |
| South Beach Medical Centre | Ardrossan | A rating |
| South Borough Convenience | Tunbridge Wells | A rating |
| South Bucks Senior Care Ltd T/A Home Instead | Bourne End | A rating |
| South Burns Tandoori LTD t/a Himalaya Restaurant | Co Durham | A rating |
| South Care Homes Ltd | Hailsham | A rating |
| South Causey Limited | Stanley | A rating |
| South Central Ambulance Service NHS Foundation Trust | Bicester | A rating |
| South Central Clothing Limited | Portsmouth | A rating |
| South Central Fleet Services Ltd | Southampton | A rating |
| South Cheshire senior care ltd | Nantwich | A rating |
| South Chingford Congregational Church | Chingford | A rating |
| South City Market Ltd | London | A rating |
| South Cliff Dental Group | Crawley | A rating |
| South Cliff Stores | Clacton-on-Sea | A rating |
| south coast care homes limited | Middlesex | A rating |
| South Coast Dental Center | Brighton | A rating |
| South Coast Eyewear | London | A rating |
| South Coast Nursing Homes Ltd | Worthing | A rating |
| South Coast Stone | Poole | A rating |
| South Cornelly Services Station | Bridgend | A rating |
| South Derbyshire District Council | Swadlincote | A rating |
| South Devon Care Services Limited | Newton Abbot | A rating |
| South Devon Cricket Club | Newton Abbot | A rating |
| South Down Healthcare Limited | Newry | A rating |
| South East Coast Ambulance Service NHS Foundation Trust | Crawley | A rating |
| South East Cornwall Multi Academy Regional Trust (SMART) | LISKEARD | A rating |
| South East Essex Academy Trust | Westcliff on Sea | A rating |
| South East Focus Care ltd | Southampton | A rating |
| SOUTH EAST FOODS LTD | Bordon | A rating |
| South East London Catholic Academy Trust | Croydon | A rating |
| South East London Mind | Orpington | A rating |
| South East Psychology CIC | London | A rating |
| South East Surrey Schools Education Trust | Dorking | A rating |
| South East Water Limited | Snodland | A rating |
| South Eastern Health and Social Care Trust | Lisburn | A rating |
| South Eastern Interiors Limited | Wembley | A rating |
| South Eastern Regional College | Ballynahinch | A rating |
| South England Conference of Seventh-day Adventists | Watford | A rating |
| South Essex College of Further & Higher Education | Southend On Sea | A rating |
| South Facing Communications Ltd | London | A rating |
| South Farnham Educational Trust | Farnham | A rating |
| South Gloucestershire and Stroud Academy Trust | Stroud | A rating |
| South Gloucestershire and Stroud College | Stroud | A rating |
| South Gloucestershire and Stroud College | Bristol | A rating |
| South Gloucestershire Council | Yate | A rating |
| South Grange Medical Group Practice | Middlesbrough | A rating |
| South Hampshire College Group | Fareham | A rating |
| South Hampstead High School | London | A rating |
| South Harrow Visionplus Limited t/a Specsavers | South Harrow | A rating |
| SOUTH HOMES LTD | London | A rating |
| South Hook Gas Company Ltd | London | A rating |
| SOUTH HOOK LNG TERMINAL COMPANY LTD. | Milford Haven | A rating |
| South Indian Restaurants Limited TA Tharavadu | Leeds | A rating |
| South Indian Restaurants Ltd | Leeds | A rating |
| South Indian Vision Limited T/A Chettinad Restaurant | Leicester | A rating |
| South Indies Ltd | Brent | A rating |
| South Kensington Business Centre Limited | London | A rating |
| South King Street Medical Centre | Blackpool | A rating |
| South Lakes Hotels Ltd | Near Bowness-on-Windemere | A rating |
| South Lanarkshire College | East Kilbride | A rating |
| SOUTH LEGACY LIMITED T/A EAST IN THE WEST | PAIGNTON | A rating |
| South Leicestershire Medical Group | Kibworth Beachamp | A rating |
| South London & Maudsley NHS Foundation Trust | Beckenham | A rating |
| SOUTH LONDON CAFE T/A GRILLERZ LTD | Banbury | A rating |
| South London Church Fund & Southwark Diocesan Board of Finance | London | A rating |
| South London Fine Art Gallery and Library | London | A rating |
| South London Learning Centre | Ilford | A rating |
| SOUTH LONDON TYRE CENTRE LIMITED | Thornton Heath | A rating |
| South Lynch Estate Poultry | Winchester | A rating |
| South Mall Limited | London | A rating |
| SOUTH MANCHESTER CARE LIMITED | MANCHESTER | A rating |
| South Manchester Senior Care Limited | Manchester | A rating |
| South Manchester Senior Care Ltd | Manchester | A rating |
| SOUTH MEDITERRANEAN FOOD LTD | London | A rating |
| South Molton Co-operative Learning Trust | South Molton | A rating |
| South Northumberland Cricket Club | Newcastle upon Tyne | A rating |
| South of Scotland Community Housing | Newton Stewart | A rating |
| South Pole Group UK Ltd. | London | A rating |
| SOUTH POLE LOCAL LTD | London | A rating |
| South Queen Construction Limited | London | A rating |
| South queen street Medical Centre | leeds | A rating |
| South Ribble Borough Council | Leyland | A rating |
| SOUTH RUISLIP CONVENIENCE STORE | South Ruislip | A rating |
| South Sands Hotel Limited | Salcombe | A rating |
| South Shields Cricket Club | South Shields | A rating |
| SOUTH SHIELDS FOOTBALL CLUB 1888 LIMITED | Jarrow | A rating |
| South Shields Visionplus Limited t/a Specsavers | South Shields | A rating |
| South Staffordshire Plc | Walsall | A rating |