| STARLIGHT U.K. CORPORATION LIMITED | London | A rating |
| STARLIMS UK Ltd. | Sale | A rating |
| Starr Underwriting Agents Limited | London | A rating |
| Starrag UK Limited | Birmingham | A rating |
| Starteam Global UK Limited | West Sussex | A rating |
| Starts London Limited | London | A rating |
| Starwood Capital Europe Advisers, LLP | London | A rating |
| Starz Mortgage Capital Ltd | London | A rating |
| STASH FINANCIAL UK LIMITED | LONDON | A rating |
| STAT MARINE LIMITED | Kent | A rating |
| State Bank of India | London | A rating |
| State Bank of India (UK) Limited | London | A rating |
| State Grid Europe Limited | London | A rating |
| State Street Bank and Trust Company | London | A rating |
| STATICUS UAB | London | A rating |
| Statista Ltd | London | A rating |
| Statkraft UK Ltd. | London | A rating |
| Stats Group | Kintore | A rating |
| Stax UKCO Limited | London | A rating |
| Steadfast Group (UK) Ltd | London | A rating |
| Steadfast Re London Brokers Limited | London, | A rating |
| Steamship Insurance Management Services Limited | London | A rating |
| Steelcase Limited | London | A rating |
| Steelco International Trading | London | A rating |
| Steelwrist UK Ltd | Banbury | A rating |
| Steer Davies & Gleave Ltd | London | A rating |
| Stefanini UK Limited | Brentwood | A rating |
| Stella McCartney Limited | London | A rating |
| Stellantis UK Limited | Coventry | A rating |
| STEM Healthcare Limited | London | A rating |
| Stemcell Technologies UK Limited | Cambridge | A rating |
| Stemcor Limited | London | A rating |
| Stena Drilling LTD | Aberdeen | A rating |
| Stenham Support Services Ltd | London | A rating |
| STENN INTERNATIONAL LIMITED | LONDON | A rating |
| Stepan UK Ltd | Stalybridge | A rating |
| Stephenson Harwood | London | A rating |
| STEPSTONE GROUP EUROPE LLP | LONDON | A rating |
| Steptoe International (UK) LLP | London | A rating |
| Steris Solutions Limited | Leicester | A rating |
| STERLING (EMEA) LTD | Nottingham | A rating |
| Sterling Relocation Ltd | Uxbridge | A rating |
| STERLITE TECHNOLOGIES LIMITED | London | A rating |
| Sterlite Technologies UK Ventures Ltd | Krikby in Ashfield | A rating |
| Sterner Aquatech UK Ltd | Inverness | A rating |
| Steward Holdings Ltd. | London | A rating |
| Stewart Title Limited | London | A rating |
| STG Partners UK Ltd | London | A rating |
| SThree | Glasgow | A rating |
| Stibbe London B.V. | London | A rating |
| Stibo Systems Ltd | Reading | A rating |
| stichd sportmerchandising uk ltd | LONDON | A rating |
| Stichting Climate-KIC International Foundation | London | A rating |
| Stichting Oxfam International | Oxford | A rating |
| STICKS 'N' SUSHI UK LIMITED | London | A rating |
| Stifel Nicolaus Europe Limited | London | A rating |
| Stikeman Elliott LLP | London | A rating |
| STILL WATERS GREEN TECHNOLOGY LIMITED | London | A rating |
| STL Digital UK Limited | London | A rating |
| STMicroelectronics Ltd | Edinburgh | A rating |
| Stoke Park Limited | Stoke Poges | A rating |
| Stolle EMS Group Limited | Burnley | A rating |
| Stolle Europe Ltd | Carlisle | A rating |
| Stolt-Nielsen M.S. Limited | London | A rating |
| Stone Harbor Services (UK) Ltd | London | A rating |
| Stonehaven Search Limited | London | A rating |
| Stonepeak Partners (UK) LLP | London | A rating |
| StoneTurn UK Limited | London | A rating |
| STONEWEG EUROPEAN MANAGEMENT SERVICES LIMITED | London | A rating |
| StoneX Financial Ltd | London | A rating |
| Stoneyard Limited | London | A rating |
| Stora Enso UK Ltd | London | A rating |
| Storage Systems Installation Ltd | Hinckley | A rating |
| Storck UK Limited | Basingstoke | A rating |
| Storengy UK Limited | Northwich | A rating |
| Storm Aviation Limited | Essex | A rating |
| Storm Procurement Limited | Watford | A rating |
| Stormtech Europe Limited | London | A rating |
| Storskogen UK Limited | London | A rating |
| Story Experiences UK Limited | Ashton Under Lyne | A rating |
| STRABAG AG UK Branch | London | A rating |
| Strabag UK Limited | London | A rating |
| Strada UK Professional Services Limited | London | A rating |
| Straddle UK Ltd | Southampton | A rating |
| Strategic Value Partners (UK) LLP | London | A rating |
| Stratford Garden Development Limited | London | A rating |
| Stratos Markets Ltd | London | A rating |
| Stream Platforms Ltd | London | A rating |
| Streamland Media | London | A rating |
| Streamvector UK Limited | Slough | A rating |
| Strength Central (Ldn) Pte Ltd | London | A rating |
| Stride Ventures UK Advisors LTD | London | A rating |
| Strider Technologies UK Limited | London | A rating |
| Strides Pharma UK Limited | Watford | A rating |
| Striim UK Ltd | Cheltenham | A rating |
| Stringr Ltd | London | A rating |
| Stripe Payments UK Ltd | London | A rating |
| STROUD CONSULTING LIMITED | LONDON | A rating |
| Structuretone Ltd | London | A rating |
| STRX UK LTD | Hartley Wintney | A rating |
| Stryker UK Limited | Newbury | A rating |
| Stuart Delivery Limited | London | A rating |
| Student Castle Property Management Services Limited | London | A rating |
| Studio Cypher Limited | London | A rating |
| STUDIOCANAL LIMITED | London | A rating |
| Studiosity Limited | London | A rating |
| STYLE BREAD EUROPE LTD | London | A rating |
| Stylus Media Group Limited | London | A rating |
| Subex UK Limited | Harrow | A rating |
| Subsea 7 (UK Service Company) Limited | Aberdeenshire | A rating |
| Substrate Bio Ltd | London | A rating |
| Subway Realty Limited | London | A rating |
| SUCAFINA UK LTD | Croydon | A rating |
| Sucden Financial Limited | London | A rating |
| Suez Advanced Solutions UK Limited | Maidenhead | A rating |
| SUEZ Recycling and Recovery UK Ltd | Maidenhead | A rating |
| SuisseTechPartners (UK) Limited | London | A rating |
| Suit Supply UK Limited | London | A rating |
| Sullivan & Cromwell LLP | London | A rating |
| Sulmara Subsea Limited | Aberdeen | A rating |
| Sulzer Chemtech (UK) Limited | Stockton on Tees | A rating |
| Sulzer GT Aero Services Limited | Netherley | A rating |
| Sulzer Pumps (UK) Ltd | Leeds | A rating |
| SUM AND SUBSTANCE LTD | London | A rating |
| Suman Education International Limited | Manchester | A rating |
| SUMCO Europe Sales Plc | London | A rating |
| Sumika Polymer Compounds (Europe) Ltd | Havant | A rating |
| Sumitomo (SHI) Cryogenics of Europe Ltd | Basingstoke | A rating |
| Sumitomo Chemical (UK) Ltd | London | A rating |
| Sumitomo Corporation Europe Ltd. | London | A rating |
| SUMITOMO ELECTRIC EUROPE LIMITED | ELSTREE | A rating |
| Sumitomo Electric Finance UK plc | London | A rating |
| Sumitomo Electric Industries, Ltd UK Branch | London | A rating |
| SUMITOMO ELECTRIC U.K. POWER CABLES LTD. | Alness | A rating |
| Sumitomo Electric Wiring Systems (Europe) Ltd | Newcastle under Lyme | A rating |
| Sumitomo Forestry Europe Limited | London | A rating |
| Sumitomo Life Insurance Company | London | A rating |
| Sumitomo Metal Mining Co., Ltd. | London | A rating |
| Sumitomo Mitsui DS Asset Management (UK) Ltd. | London | A rating |
| Sumitomo Mitsui Finance and Leasing Company, Limited, | London | A rating |
| Sumitomo Mitsui Trust Bank Limited | London | A rating |
| Sumitomo Mitsui Trust International Limited | London | A rating |
| SUMMER INTERNATIONAL GROUP LTD | High Wycombe | A rating |
| Summit (Oxford) Limited | Abingdon | A rating |
| Summit Partners LLP | London | A rating |
| Sumo Digital Limited | Sheffield | A rating |
| Sumologic Limited | Chichester | A rating |
| SumTotal Systems UK Limited | Camberley | A rating |
| SumUp Payments Limited | London | A rating |
| Sun Chemical Ltd | Bath | A rating |
| Sun European Partners LLP | London | A rating |
| Sun Hung Kai Capital (UK) Limited | Vauxhall | A rating |
| Sun Mark Limited | Greenford | A rating |
| SUN-WA TECHNOS (UK) CONNECT SOLUTIONS LTD | Swindon | A rating |
| Suncor Energy UK | Aberdeen | A rating |
| SUNDAY APP LIMITED | Cheshire | A rating |
| Sundial BidCo Limited | London | A rating |
| Sungrow Power UK Ltd | Milton Keynes | A rating |
| SUNNERG LTD | Croydon | A rating |
| SUNOTEC UK Limited | Leicester | A rating |
| Sunrise Media Group Limited | Wallingford | A rating |
| SUNRISE MEDICAL LIMITED | Brierley Hill | A rating |
| Suntec Business Solutions UK Private Limited | London | A rating |
| SUNTORY EUROPE LIMITED | London | A rating |
| Suntton Global Trading Ltd | London | A rating |
| Super Bock Beverages UK Limited | London | A rating |
| Superawesome Trading Limited | London | A rating |
| Supercharge London | London | A rating |
| Superderivatives UK Limited | London | A rating |
| Superdrug Stores plc & Savers | Croydon | A rating |
| Superdry Plc | Cheltenham | A rating |
| Superior Wild Well Energy Services Limited | Aberdeen | A rating |
| Supermassive Games Limited | Guildford | A rating |
| Superunion Limited | London | A rating |
| Supreme Well International Limited | RICHMOND | A rating |
| SureCloud Limited | Reading | A rating |
| Surf Break Entertainment Ltd | London | A rating |
| SurfacePrep UK Limited | Sheffield | A rating |
| Surrey Satellite Technology Ltd | Guildford | A rating |
| Survival Systems International UK Ltd | Norfolk | A rating |
| SUSE Software Solutions UK Limited | Staines-Upon-Thames | A rating |
| Susquehanna Dublin Limited - UK Branch | London | A rating |
| Susquehanna International Securities Limited - UK Branch | London | A rating |
| Sustainable Bright Ltd | Guildford | A rating |
| Sutherland Digital UK Private Limited | London | A rating |
| Sutherland Global Services UK Ltd | London | A rating |
| SUTTER HILL MANAGEMENT COMPANY UK, LLP | London | A rating |
| Suzuki GB Plc | Milton Keynes | A rating |
| Suzuyo & Co. Ltd. - London Branch | London | A rating |
| SVAT Ltd | Clydebank | A rating |
| Svitzer Marine Limited | Middlesbrough | A rating |
| SW7 Services (UK) Limited | London | A rating |
| Swaine Group Ltd | London | A rating |
| Swanky Group Limited | Exeter | A rating |
| Swap Commerce Limited | London | A rating |
| Swarovski UK Limited | London | A rating |
| Swatch Group (UK) Limited | London | A rating |
| Sweaty Betty Limited | London | A rating |
| Sweden & Martina Ltd | Crawley | A rating |
| Sweet Street Desserts LTD | Huddersfield | A rating |