| Sygnia Consulting UK Limited | London | A rating |
| SYKASYS TECHNOLOGIES LIMITED | Manchester | A rating |
| Sykes Capital Ltd | Reading | A rating |
| Sykes Seafood Limited | Knutsford | A rating |
| SYL CHELTENHAM LTD | Cheltenham | A rating |
| SYL Link Ltd T/A Cookies and Cream | London | A rating |
| SYLATECH LIMITED | York | A rating |
| SYLDON FOODS LTD | LONDON | A rating |
| SYLHET BAZAR LIMITED | LONDON | A rating |
| SYLHET CINNAMON SPICE LTD | Sheffield | A rating |
| SYLHET HOSPITALITY LIMITED | Anglesey | A rating |
| SYLHET HOUSE TRAVEL CENTRE LTD | London | A rating |
| Sylhet Mass Bazar Ltd | Birmingham | A rating |
| SYLHET SUPERMARKET LTD | Birmingham | A rating |
| SYLHET SWEET STORE LTD | London | A rating |
| SYLHET TRAVEL SERVICES LTD | MANCHESTER | A rating |
| Sylheti Bazar Limited, T/A, Sylheti Bazar | Oldham | A rating |
| Sylhety Foods Ltd T/A Raj Bari | Bristol | A rating |
| Sylphid Analytics UK Ltd | Reading | A rating |
| SYLTECH AUTOS LTD | Enfield, | A rating |
| Syltex Limited | MILTONKEYNES | A rating |
| Sylvan Wellness Angel Ltd | Islington, London | A rating |
| Sylvera Ltd | London | A rating |
| Sylversys Group Ltd | Kenley | A rating |
| Sylvester Amiel Lewin & Horne LLP | LONDON | A rating |
| SYLVIA GREY DRY CLEANERS LIMITED | London | A rating |
| Sylviaardo Ltd | Cranleigh | A rating |
| SYLVIANETTE CLEANING SERVICES LTD | Mildenhall | A rating |
| Sylwia Care Limited | London | A rating |
| Sym AI LTD | London | A rating |
| SYM Care Ltd | Chesham | A rating |
| Symatrix Ltd | Manchester | A rating |
| Symbiosis Care Limited | Rickmansworth | A rating |
| Symbiosis Pharmaceutical Services Ltd | Stirling | A rating |
| SYMBIOTEC LTD | Nottingham | A rating |
| SYMBIOTIC STRATEGY LTD | Birmingham | A rating |
| Symbiotics(UK) Ltd | London | A rating |
| Symbolic Care Group Limited | Chelmsford | A rating |
| Symbolica AI Limited | London | A rating |
| SYMEUS LTD | NORWICH | A rating |
| Symfos Limited | London | A rating |
| Symless Ltd | Camberley | A rating |
| SYMMETRIC WAVE LIMITED | Sidcup | A rating |
| Symmetron Limited | London | A rating |
| Symmetry Investments UK LLP | London | A rating |
| Symmetrys Limited | London | A rating |
| Symogen Limited | Marlow | A rating |
| Symology Ltd | Luton | A rating |
| Symphonic Solutions Limited T/A Signicat | London | A rating |
| Symphony Communication Services UK Limited | London | A rating |
| Symphony Healthcare Services Limited | Yeovil | A rating |
| Symphony Talent Limited | London | A rating |
| Symphony Textiles UK Ltd | Wythenshawe | A rating |
| Symphony Ventures Ltd | London | A rating |
| SYMPHORNA LIMITED | CAMBRIDGE | A rating |
| Symposium | London | A rating |
| Symprove Ltd | Farnham | A rating |
| SYMRISE LIMITED | Marlow | A rating |
| Syms Digital Ltd | Manchester | A rating |
| Symtrax Limited | London | A rating |
| SYMVA COFFEE LIMITED | HOVE | A rating |
| Symvan Capital Limited | London | A rating |
| Synack Europe Limited | Cheltenham | A rating |
| Synacor Europe Limited | London | A rating |
| SYNALOGIK INNOVATIVE SOLUTIONS LTD | Hereford | A rating |
| Synamedia Limited | Maidenhead | A rating |
| SynApps Solutions Limited | Hatfield | A rating |
| Synapse Media Technologies Ltd | Berkhamsted | A rating |
| Synaptec Ltd | Glasgow | A rating |
| synaptic resources ltd | London | A rating |
| Synativ Technologies Ltd | London | A rating |
| Synbiosys Ltd | London | A rating |
| sync dental group ltd | addlestone | A rating |
| Sync Taxis Limited | Newport | A rating |
| Synchronicity Earth | London | A rating |
| Synchrosity Limited | London | A rating |
| SynchroStor Ltd. | Loanhead | A rating |
| Syncona Investment Management Limited | London | A rating |
| Syncron UK Limited | Birmingham | A rating |
| Syndeo Ltd | Belfast | A rating |
| Syndesi One Limited | Ilford | A rating |
| Syndex Bio Ltd | Cambridge | A rating |
| SYNDICATE ALPHA LTD | Swindon, | A rating |
| Syndicate Room Ltd | Cambridge | A rating |
| Syndigo UK Ltd | London | A rating |
| Syndikat Ltd. | Croydon | A rating |
| Synechron Limited | London | A rating |
| SYNECHRON PLATFORM CONSULTING LTD | London | A rating |
| Synechron Solutions Limited | London | A rating |
| Synectics PLC | Sheffield | A rating |
| Synectics Solutions Limited | Stoke-On-Trent | A rating |
| Synel Industries UK Ltd | Wembley | A rating |
| Syneos Health UK Limited | Farnborough | A rating |
| Synergetic 212 Ltd | London | A rating |
| SYNERGETIC EDGE SERVICES LTD | Essex | A rating |
| SYNERGIE SERVICES LTD | Birmingham | A rating |
| SYNERGISTIC TRADING LTD | London | A rating |
| Synergistik Limited | Northampton | A rating |
| Synergize Consulting Limited | Crawley | A rating |
| Synergy 212 Ltd | London | A rating |
| Synergy Arc Consulting Group Ltd | Ilford | A rating |
| Synergy Associates Ltd | LONDON | A rating |
| Synergy Automatics Ltd | London | A rating |
| Synergy Construction and Property Consultants LLP | Guildford | A rating |
| Synergy Dental Clinic Ltd | Blackpool | A rating |
| SYNERGY ECO LTD | Watford | A rating |
| Synergy Equestrian Limited | Wetherby | A rating |
| Synergy Fire Engineering ltd | Matlock | A rating |
| SYNERGY FLAVOURS LTD | HIGH WYCOMBE | A rating |
| Synergy Fresh Ltd | Dudley | A rating |
| Synergy Global Consulting Ltd | Oxford | A rating |
| Synergy Health & Care Limited | Guildford | A rating |
| Synergy Health Managed Services Limited | Derby | A rating |
| Synergy Hire Limited | Letchworth | A rating |
| SYNERGY IT SERVICE LIMITED | Harrow | A rating |
| Synergy Legal Group Limited | Birmingham | A rating |
| Synergy Markets Ltd | London | A rating |
| Synergy Multi Academy Trust | Norwich | A rating |
| Synergy Physio & Rehab Limited | Woking | A rating |
| Synergy Rail Limited | Bromley | A rating |
| Synergy Retail Group Ltd | Dudley | A rating |
| SYNERGY SAFETY SOLUTIONS LTD | Ilford | A rating |
| Synergy Security Solutions Ltd | Barking | A rating |
| Synergy Smart Homes | Wollaton | A rating |
| Synergy Solutions International Limited | London | A rating |
| SYNERGY SOLUTIONS PRIVATE LIMITED | London | A rating |
| Synergy Tax Accountants | London | A rating |
| SYNERGY3 GROUP LIMITED | London | A rating |
| SYNERGYSPHERE PARTNERS LTD | London | A rating |
| Synergysta Ltd | Bedfordshire | A rating |
| Syneron Candela (UK) Limited | London | A rating |
| Synertic Limited | Dagenham | A rating |
| Synetec Ltd | Churt | A rating |
| SYNETIQ Ltd | Adwick-le-Street | A rating |
| Synexa Life Sciences | Macclesfield | A rating |
| SyngenSys Limited | Sheffield | A rating |
| Syngenta Limited | Berkshire | A rating |
| Synnovis Group LLP | London | A rating |
| Syno H Bloom Ltd | London | A rating |
| Synod of German-Speaking Reformed, Lutheran and United Congregations in GB | London | A rating |
| Synology UK Ltd | Milton Keynes | A rating |
| Synopsys (Northern Europe) Ltd | Reading | A rating |
| Synova LLP | London | A rating |
| Synpulse UK Ltd | London | A rating |
| Syntasa UK Limited | London | A rating |
| Syntasso Limited | Fleet | A rating |
| Syntato Limited | London | A rating |
| Syntax Europe Limited | London | A rating |
| Syntax Integration Limited | London | A rating |
| Syntech Biofuel Limited | Rochester | A rating |
| SynTech Research UK Ltd | Bury St Edmunds | A rating |
| Syntegra Consulting Limited | Reading | A rating |
| Syntegral Ltd | Birmingham | A rating |
| Syntel Europe Limited | London | A rating |
| Synteny Biotechnology Limited | London | A rating |
| Synthace Limited | London | A rating |
| Synthax Audio (UK) Ltd | Hemel Hempstead | A rating |
| Synthesia Limited | London | A rating |
| Synthesis Capital LLP | London | A rating |
| Synthesis Chambers Solicitors Ltd | LONDON | A rating |
| Synthesis Research Limited | London | A rating |
| SYNTHESIS STUDIO LIMITED | London | A rating |
| Synthesis Systems Limited | London | A rating |
| Synthesized Ltd | London | A rating |
| Synthomer plc | Harlow | A rating |
| Syntiga Limited T/a Slick Distributions Ltd | Watford | A rating |
| Syntura Group Limited | London | A rating |
| SYNVERSE TECH LIMITED | Brentford | A rating |
| Synvert-TCM | Manchester | A rating |
| SynX Therapeutics Ltd | London | A rating |
| SYNYEGA LIMITED | Warrington | A rating |
| syo.io Limited | London | A rating |
| SYON ACCOUNTING SERVICES LTD | LONDON | A rating |
| Syon M2 Limited | Kidderminster | A rating |
| SYON PROPERTIES LIMITED | London | A rating |
| Syos Aerospace UK Limited | Fareham | A rating |
| SYPM CARE LTD | Newtownabbey | A rating |
| Syps Aberdeen Ltd | Aberdeen | A rating |
| Syracuse University London Program | London | A rating |
| Syrena Ltd | London | A rating |
| Syrian Orthodox Church | LONDON | A rating |
| Syringa UK Ltd | Billingshurst | A rating |
| Syrinix Limited | Norwich | A rating |
| SYS PRIVATE LIMITED | Sheffield | A rating |
| Sysco Environmental Limited | BARNSLEY | A rating |
| Sysco GB Ltd | Ashford | A rating |
| Sysco Infotech Ltd | Loughton | A rating |
| Sysco Software (N.I.) Ltd | Belfast | A rating |
| Syscom Building Management Ltd | Egham | A rating |
| SYSCOMM LTD | Coventry | A rating |
| SYSDA TECH LTD | Manchester | A rating |
| SYSDIG LTD | London | A rating |
| Sysdoc Limited | London | A rating |
| Syselek (UK) Ltd | London | A rating |
| SysGroup Plc | Manchester | A rating |
| Sysmax Limited | Aberdeen | A rating |
| SYSMED LTD T/A QUESMED | London | A rating |
| SYSMETICS LTD | London | A rating |
| Sysmex UK LTD | Milton Keynes | A rating |
| Sysnous Consulting Ltd | High Wycombe | A rating |