| SIMPLER GROUP LTD | London | A rating |
| Simpleshow UK Ltd | Greater London | A rating |
| Simplestream LTD | London | A rating |
| SimpleX Chat Ltd | London | A rating |
| Simplex Electrical Limited | London | A rating |
| Simplex Services (UK) Ltd | Brighton | A rating |
| Simpli Green Ltd | Oldham | A rating |
| Simplicity Cloud Ltd. | London | A rating |
| Simplicity Marketing Scotland Ltd | Dunfermline | A rating |
| Simplified Loader Ltd | London | A rating |
| Simplified Staffing Limited | Mitcham | A rating |
| Simplify Synergy Limited | London | A rating |
| Simplisys Limited | Portishead | A rating |
| Simplor Ltd | Nottingham | A rating |
| Simply Asia Romford Ltd | London | A rating |
| Simply Asset Finance Operations Limited | London | A rating |
| SIMPLY AUTHENTIC LTD THE MOGHUL | SIDCUP | A rating |
| SIMPLY BARGAINS LTD t/a Bargain World | Cheadle Hulme | A rating |
| Simply Bearings Ltd | Leigh | A rating |
| SIMPLY BEDS LTD | BATLEY | A rating |
| SIMPLY BILASH LIMITED T/A Simply Bilash | Stafford | A rating |
| Simply Bright (Mitcham) Ltd | Mitcham | A rating |
| Simply Care (UK) Ltd | Stanmore | A rating |
| Simply Carehome Limited T/A Becket House Nursing Home | Milton Keynes | A rating |
| SIMPLY CUSTOMISE LIMITED | HEATHROW | A rating |
| Simply Doughnuts Ltd | blackburn | A rating |
| SIMPLY ENERGY SOLUTIONS LIMITED | BARKING | A rating |
| Simply Ethical Financial Services Ltd | Slough | A rating |
| Simply Falafel Ltd | London | A rating |
| SIMPLY FONE SOLUTION LIMITED | Bristol | A rating |
| SIMPLY FOOD KITCHEN LTD | London | A rating |
| Simply Heatit Ltd | London | A rating |
| Simply Jet UK Limited | Farnborough | A rating |
| Simply Local Ltd | Henfield | A rating |
| SIMPLY LUNCH LTD | Croydon | A rating |
| Simply Nature Ltd. | Stonegate | A rating |
| Simply Oriental Foods Ltd | London | A rating |
| Simply Pleasure Limited | Ringwood | A rating |
| SIMPLY PLUMBING BATHROOMS LIMITED | Bromley | A rating |
| SIMPLY SAVE (UK) LTD | London | A rating |
| Simply Serve Limted | Yeovil | A rating |
| Simply Signs Ltd | London | A rating |
| SIMPLY SMASHED LTD | London | A rating |
| Simply Smile Wellington House Limited | Dereham | A rating |
| Simply Tax Advisory Limited | London | A rating |
| Simply Thai Ltd | Alyesbury | A rating |
| Simply Travel and Tours Ltd | forest Gat, e | A rating |
| Simply TV UK Limited | Altrincam | A rating |
| Simply UK Care Group Ltd | Bellshill | A rating |
| SIMPLYBEDS ONLINE LTD | London | A rating |
| SIMPLYCATS VET CLINIC | FENCEHOUSES | A rating |
| SIMPLYFRESH (WEST WIMBLEDON) LIMITED | Croydon | A rating |
| Simplyhealth People Limited | Andover | A rating |
| SIMPLYMY CARE LTD | HUCKNALL | A rating |
| Simplypharmaco Ltd | Bexleyheath | A rating |
| Simportal As A Service Limited | Alfreton | A rating |
| Simportal Limited | Alfreton | A rating |
| Simposon Engineering Limited | Sutton | A rating |
| SIMPPLR Limited | Reading | A rating |
| Simpragma Solutions Ltd | Bromley | A rating |
| Simprints Technology Ltd. | Cambridge | A rating |
| SIMPRO SOFTWARE LIMITED | Reading | A rating |
| Simpsinns Limited | Irvine | A rating |
| SIMPSON AND WEBB LIMITED | East Yorkshire | A rating |
| Simpson Associates Information Services Limited | York | A rating |
| Simpson Carpenter Ltd | Wimbledon | A rating |
| Simpson Coulson Ltd | Billingham | A rating |
| Simpson Farms Limited | Newton Stewart | A rating |
| Simpson Judge Ltd | Preston | A rating |
| Simpson Oils Ltd | Wick | A rating |
| Simpson Spence Young | London | A rating |
| Simpson Strong-Tie International, Inc. | Tamworth | A rating |
| Simpson Technology Ltd | Heald Green | A rating |
| SIMPSON THACHER & BARTLETT LLP | LONDON | A rating |
| Simpson Traders Ltd | Tividale,Oldbury | A rating |
| SimpsonHaugh Architects Ltd | Manchester | A rating |
| Simpsons (Preston) Limited t/a Simpsons | Preston | A rating |
| Simpsons of North Shields Limited | Whitley Bay | A rating |
| SIMPSONS UK LTD | SOUTH WALES | A rating |
| Simra's Fashion Uk Ltd | Oldham | A rating |
| Simra&Co Limited t/a Longniddry News | Longniddry | A rating |
| SIMRAH SPICE LTD | London | A rating |
| Simran Arora Takeaway Ltd | Wolverhampton | A rating |
| SIMRAN FRUIT & VEG LTD | WEMBLEY | A rating |
| SIMRANS TRADING LIMITED | Bradford | A rating |
| Sims Haulage Ltd | Rugby | A rating |
| Sims Hilditch LTD | Gloucestershire | A rating |
| Sims Lifecycle Services Limited | Stalybridge | A rating |
| Simsek Restaurant Ltd t/a Elif Turkish BBQ Restaurant | Liverpool | A rating |
| SIMSEK TRADING LTD | Dorset | A rating |
| SIMSET LTD T/A YWC LONDON LLP | LONDON | A rating |
| SIMSOFT TECHNOLOGY LIMITED | Ilford | A rating |
| Simson Catering LTD | Crewe | A rating |
| SIMT Retail Ltd T/A Heathgate Stores | Norwich | A rating |
| SIMTEC MATERIALS TESTING LTD | LEICESTER | A rating |
| Simudyne Limited | London | A rating |
| Simutec International Limited | London | A rating |
| Simviraj Limited | Walsall | A rating |
| Simwood eSMS Limited | Bristol | A rating |
| SINA AGRO LTD | Dundee | A rating |
| Sina Ltd | London | A rating |
| SINA Medical Glass Ltd | St. Helens | A rating |
| Sinai Care Solutions Ltd | Wolverhampton | A rating |
| Sinai Hotel LLP | Wembley | A rating |
| Sinai Jewish Primary School | Kenton | A rating |
| Sinai Mar Thoma Church North London | Harrow | A rating |
| Sinaj Loftts LTD | London | A rating |
| Sinan Capital Ltd | London | A rating |
| SINAVA LIMITED | Birstall | A rating |
| SINCERE CARE LTD | DAGENHAM | A rating |
| Sincere Unity Ltd t/a Chew Chartered Accountant | Birmingham | A rating |
| Sincereal UK Limited | London | A rating |
| Sincerity Health Care Limited | Birmingham | A rating |
| Sinch UK Ltd | Canterbury | A rating |
| Sinclair Gibson LLP | London | A rating |
| Sinclair Pharmaceuticals Limited | Chester | A rating |
| Sinclair Ventures Limited | Harrow | A rating |
| SINDA CORPORATION UK LIMITED | London | A rating |
| SINDA GROUP LIMITED | London | A rating |
| Sinden Construction Limited | Harold Wood | A rating |
| SINDHERFOODS LIMITED | Hengoed | A rating |
| Sindhu Immigration Services | London | A rating |
| SINE Digital Limited | London | A rating |
| SINE HAIR & BEAUTY SALON LIMITED | Glasgow | A rating |
| Sinequanon Consulting Limited | London | A rating |
| SINER LTD | London | A rating |
| SINEVIS TECHNOLOGIES UK LTD | Ruislip | A rating |
| Sinewave Energy Solutions | Swindon | A rating |
| SINEWAVES ELECTRICALS LTD | Birmingham | A rating |
| Sinfonia Smith Square | London | A rating |
| Sinfonietta Productions Ltd (trading as London Sinfonietta) | London | A rating |
| SING SING (CASH CARRY) LTD | Leeds | A rating |
| Sing Tao (UK) Ltd | Cricklewood | A rating |
| SING WONG LIMITED | Leeds | A rating |
| Singa Games LTD | London | A rating |
| SINGANAYAGAM NAVASHANKAR T/A AKSARA | BIRMINGHAM | A rating |
| Singapore Airlines Limited | London | A rating |
| Singapore Airlines Ltd | Chiswick | A rating |
| Singapore Economic Development Board | London | A rating |
| Singapore Exchange Limited | London | A rating |
| SINGAPORE HIGH COMMISSION | LONDON | A rating |
| Singapore Tourism Board | London | A rating |
| Singar Beauty Limited T/A Singar Beauty | Knowle | A rating |
| Singer Instrument Company Limited | Watchet | A rating |
| Singer Interactive | Hereford | A rating |
| SINGERKACH VIEWS LIMITED | Colchester, | A rating |
| Singh & Bath Limited | Coventry | A rating |
| Singh & Kaur Enterprises Limited T/A Phone Corner | Mansfield | A rating |
| Singh & Lee Ltd T/A Takaa Tak restaurant, Hayes | Hayes | A rating |
| SINGH AND HUSSAIN LTD | Glasgow | A rating |
| Singh Builder Merchant Ltd | Iver | A rating |
| Singh Builders Limited | London | A rating |
| Singh Carpentry & Joinery Limited | Chislehurst | A rating |
| Singh Cash and Carry Limited T/A The Old General Store | Abergavenny | A rating |
| SINGH COMMERCIAL KITCHEN SOLUTION LIMITED | Ruislip | A rating |
| Singh Concrete Pumps Ltd | West Bromwich, England | A rating |
| SINGH CONSTRUCTIONS LTD | Slough | A rating |
| Singh Developers Ltd | Hounslow | A rating |
| Singh Essential Limited | Hounslow | A rating |
| Singh Gill Ltd t/a Subway | Derby | A rating |
| Singh Household Limited T/A Vape X Cell | Egham | A rating |
| Singh Inventure Ltd T/A A to Z Stores | Cardiff | A rating |
| SINGH SABHA GURDWARA LIMITED | Peterborough | A rating |
| SINGH SABHA LONDON EAST | ILFORD | A rating |
| Singh Sabha Slough Kabaddi Club | Slough | A rating |
| SINGH SABHA SPORTS CLUB (SOUTHHALL) LTD | LONDON | A rating |
| Singh Sahib Ltd | Rowley Regis | A rating |
| Singh's Enterprises Ltd | Southall | A rating |
| SINGH'S INDIAN STREET FOOD LTD | Leeds | A rating |
| SINGH'S NEWCASTLE LTD | Newcastle Upon Tyne | A rating |
| SINGH'S OFF LICENCE LTD | Oxford | A rating |
| SINGH'S STORES LTD | Witney, England | A rating |
| Singh's Supermarket Ltd | Eynsham | A rating |
| SINGH'SMART LIMITED | Birmingham | A rating |
| Singhar Beauty Welwyn Limited | Welwyn Garden City | A rating |
| Singhawali Food Limited T/A Green Gates Restaurant | Stirling | A rating |
| SINGHS BAKERY LTD | Tilehurst | A rating |
| Singhs Builders (London) Limited | London | A rating |
| Singhs Convenience Store Ltd | Washington | A rating |
| SINGHS FITTING THINGS LIMITED | Leamington Spa | A rating |
| Singhs Haulage Ltd | West Bromwich | A rating |
| Singhs Medical Ltd | Worksop | A rating |
| SINGHS MOTORS LIMITED | Glasgow | A rating |
| SINGHSBURY LOCAL OFF LICENSE LTD | Wolverhampton | A rating |
| SINGLA CONSULTING WORLDWIDE LTD | ERITH | A rating |
| Single Buoy Moorings (UK) Limited | Belfast | A rating |
| Singlemorn UK Limited | Oldham | A rating |
| Singlestore UK Limited | London | A rating |
| Singleton Birch Limited | Barnetby | A rating |
| Singleton Nursing & Residential Home Ltd | Ashford | A rating |
| Singletrack Systems Limited | London | A rating |
| Singrun Health Ltd | Birmingham | A rating |
| Singtel (Europe) Limited | London | A rating |
| Singular Systems UK Limited t/a Singular Systems | London | A rating |
| Singular UK Limited | London | A rating |
| SINHA SECURITY SERVICES LIMITED | London | A rating |
| SINLA LIMITED | Greenford | A rating |
| SINNADURAI MAKESWARAN T/A NEWS CENTRE | London | A rating |
| Sinnathamby Manickam (sole trader) | Middlesex | A rating |
| SINNATHAMBY VIGNESWARAN | HANWELL | A rating |