| SpeakUnique LTD | Glasgow | A rating |
| SPEAR BUSINESS SERVICES LTD | Bexleyheath | A rating |
| SPEAR-UK Limited | Corwen | A rating |
| Spearfish Security Ltd | Winchester | A rating |
| SPEC Engineering Ltd | Leatherhead | A rating |
| Specac Ltd | Orpington | A rating |
| Specdrum Ltd | Dungannon | A rating |
| Specfab Ltd. | Dungannon | A rating |
| SpecFin Capital Ltd | London | A rating |
| SPECIAL ASSIGNMENTS LTD | Neath | A rating |
| SPECIAL BEES GLOBAL LIMITED | Aberdeen | A rating |
| Special Care Services Ltd | Derby | A rating |
| Special London Limited | London | A rating |
| Special Melted Products Limited | Sheffield | A rating |
| Special Needs Care Limited | Chester | A rating |
| Special People Partnership Ltd | London | A rating |
| Special Project Resources Limited | Stockport | A rating |
| Special Projects and Services Limited | Hereford | A rating |
| Special Projects Studio Limited | Richmond | A rating |
| Special Security K9 Ltd | Ilford | A rating |
| Special Treat Restaurant Ltd T/A Baranda | Berkshire | A rating |
| Special Vehicle Solutions Limited | Coventry | A rating |
| SPECIALEFFECT.ORG.UK LIMITED | CHARLBURY | A rating |
| SPECIALEYES (GLASGOW) LTD T/A SPECIAL EYES | Glasgow | A rating |
| Specialised Housing and Care Ltd | Maidstone | A rating |
| Specialised Imaging Ltd | Pitstone | A rating |
| Specialised Polymer Engineering Ltd | Southampton | A rating |
| Specialised Research (UK) Limited | St Albans | A rating |
| Specialist Alarm Services Limited | Newcastle Upon Tyne | A rating |
| Specialist Auto Spares Limited | Manchester | A rating |
| Specialist Aviation- Cabinair services | Letchworth Garden City | A rating |
| Specialist Care Limited | Great Yarmouth | A rating |
| Specialist Care Team Limited | Morecambe | A rating |
| Specialist Ceramics Limited | London | A rating |
| SPECIALIST CORNER LTD | LEEDS | A rating |
| SPECIALIST DENTAL SERVICES LIMITED | London | A rating |
| Specialist Engineering Services Ltd | Doncaster | A rating |
| Specialist Health Solutions Limited | Peterborough | A rating |
| SPECIALIST INSIGHT LIMITED | Surrey | A rating |
| Specialist Joinery Fittings | Maghera | A rating |
| Specialist Learning Trust | West Wickham | A rating |
| Specialist Lending Ltd | Basingstoke | A rating |
| Specialist Marine Consultants Ltd | Hunmanby | A rating |
| Specialist Network Operations Ltd | Oswestry | A rating |
| Specialist Passenger Solutions Limited | Bridgwater | A rating |
| Specialist PR & Advisory Services Ltd | Ascot | A rating |
| Specialist Resource Solutions | Aberdeen | A rating |
| Specialist Risk Group Limited | London | A rating |
| Specialist Veterinary Cardiology Consultancy Ltd | Four Marks | A rating |
| Specialisterne NI | Belfast | A rating |
| SPECIALISTS CARS LIMITED | Manchester | A rating |
| Speciality Drinks Limited | London | A rating |
| Speciality Fibres and Materials Ltd | Coventry | A rating |
| Specifi.io ltd | Bangor | A rating |
| Specific Events Limited | London | A rating |
| SPECKLES LIMITED | Liverpool | A rating |
| SpecPower Ltd | Kennington | A rating |
| Specright, Ltd | London | A rating |
| SPECS TECH UK LTD | Purley | A rating |
| Specsavers (Louth Visionplus Ltd) | Louth | A rating |
| Specsavers Clacton Limited | Clacton on Sea | A rating |
| Specsavers Colwyn Bay Opticians and Audiology | Colwyn Bay | A rating |
| Specsavers Croydon | Croydon | A rating |
| Specsavers Daventry | Daventry | A rating |
| Specsavers Dundee Ltd | Dundee | A rating |
| Specsavers Hearcare Congleton Ltd | Congleton | A rating |
| Specsavers Kilburn Hearcare Ltd | London | A rating |
| Specsavers Lakeside Limited | West Thurrock | A rating |
| Specsavers Optical Superstores Limited | Fareham | A rating |
| Specsavers Westway Cross | Greenford | A rating |
| Specsavers Worcester | Worcester | A rating |
| SpecStudio Limited | Bridlington | A rating |
| SPECTACULARKIDZ DAY NURSERY LTD | Barking | A rating |
| Spectec Ltd | Old Trafford | A rating |
| Spectinga Ltd | Edinburgh | A rating |
| SPECTO LIMITED TRADING AS BOOTS OPTICIANS | SWINDON | A rating |
| Spector Constant & Williams | London | A rating |
| Spectos U.K. Ltd. | Coleshill | A rating |
| Spectr Infotech Limited | Milton Keynes, | A rating |
| Spectra C.I.C. | London | A rating |
| SPECTRA CARE LTD t/a Spectra Care | Barnsley | A rating |
| SPECTRA CONSTRUCTION LTD | London | A rating |
| Spectra Engineering Services LTD. | London | A rating |
| Spectra FX Solutions LLP | London | A rating |
| Spectra Logic Europe Ltd | Bracknell | A rating |
| SPECTRA PROPERTY & SERVICES LIMITED | Birmingham | A rating |
| Spectra Real Estate Limited | London | A rating |
| Spectral Compute Ltd | London | A rating |
| SpectrAxe Limited | London | A rating |
| Spectris Limited | London | A rating |
| Spectris PLC | Egham | A rating |
| Spectro Cloud, UK Limited | London | A rating |
| Spectron GCS UK Ltd | COVENTRY | A rating |
| SPECTROPLUS LTD | Liverpool | A rating |
| Spectrum Acoustic Consultants Limited | Biggleswade | A rating |
| Spectrum Brands (UK) Limited | Manchester | A rating |
| Spectrum Brands EMEA UK Limited | Nottingham | A rating |
| Spectrum Cargo Services Ltd | Colnbrook | A rating |
| Spectrum Community Health CIC | Wakefield | A rating |
| Spectrum Data Networks Ltd | London | A rating |
| Spectrum Entertainment Services Ltd | Ascot | A rating |
| Spectrum Equity UK, LLP | London | A rating |
| Spectrum Fibre Limited T/A Ogi | Cardiff | A rating |
| Spectrum IT Hub Limited | Swindon | A rating |
| Spectrum IT Limited | Leicester | A rating |
| Spectrum Media Sales Ltd | Watford | A rating |
| Spectrum Motors WM Limited | Smethwick | A rating |
| Spectrum Networks Solutions Limited | Milton Keynes | A rating |
| SPECTRUM SECURITY LIMITED | BRADFORD | A rating |
| Spectrum Social Care | Sheffield | A rating |
| SPECTRUM TECHNOLOGY SERVICES LTD | Swindon | A rating |
| Spectrum Wealth Management Ltd | Moira | A rating |
| Spectrum Wind Services Ltd | Nottingham | A rating |
| SPECTRUMPROPERTIES (NE) LTD | Gateshead | A rating |
| SpectrumX Direct Limited | Knutsford | A rating |
| Sped Trading Ltd | Ballymena | A rating |
| Speech Graphics Ltd | Edinburgh | A rating |
| Speech Therapy Services London Ltd | Ongar | A rating |
| SPEECH THERAPY SOUTH LONDON LTD | Godalming | A rating |
| Speed Consultants Limited | Ilford | A rating |
| SPEED ENERGY UK LTD | Birmingham | A rating |
| Speed Engineering Solutions Limited | Derby | A rating |
| SPEED FUELS LTD | Ilford | A rating |
| Speed Group (Holdings) Ltd | Gatwick | A rating |
| SPEED OCTANE UK LTD | Warwick | A rating |
| Speed Petroleum (UK) Ltd | Dewsbury | A rating |
| Speed Services Ltd | Harrow | A rating |
| SPEED SOLUTIONS CONSULTANCY LTD | Hemel Hempstead | A rating |
| SPEED STITCH LIMITED | Loughton | A rating |
| Speed-Tech (UK) Limited | Stanwell | A rating |
| SPEED'S JUICE UK LTD | Southall | A rating |
| Speedeck | Houghton Regis | A rating |
| Speedel Ltd | Leicester | A rating |
| Speeder Systems LTD | Southampton | A rating |
| Speedinvest Ltd | Hastings | A rating |
| SPEEDIWASH LTD | STANWELL | A rating |
| SPEEDLINE ARROWS LIMITED | Keighley | A rating |
| Speedloan Finance Ltd | Leicester | A rating |
| Speeds Health Care | Chester | A rating |
| SpeedSilver Ltd. | Newhaven | A rating |
| Speedster-IT Ltd | London | A rating |
| Speedway Autos Ltd | Kilburn | A rating |
| Speedway Limited | Watford | A rating |
| SpeedWays Auto Limited | Cheadle | A rating |
| Speedwell Accountants Ltd | Blackpool | A rating |
| Speedwell Autos Limited | London | A rating |
| SPEEDWELL SERVICES LTD | Oldham | A rating |
| SPEEDY BOT LIMITED | Leicester | A rating |
| SPEEDY CARE EXPRESS LTD | Birmingham | A rating |
| SPEEDY DESIGN & BUILD LIMITED | Ilford | A rating |
| Speedy Freight t/a Puro ventures Ltd | Knutsford | A rating |
| SPEEDY HAULAGE LTD | Hayes | A rating |
| Speedy Hire PLC | Newton Le Willows | A rating |
| Speedy Iron Limited | High Wycombe | A rating |
| SPEEDY JOBS LTD | England | A rating |
| SPEEDY LINKS LTD | Hounslow | A rating |
| SPEEDY MOBILE PHONE ACCESSORIES LTD | MANCHESHTER | A rating |
| SPEEDY RADIO CARS LIMITED | Greenford | A rating |
| SPEEDY ROCK LTD | Birmingham | A rating |
| Speedy Service 2000 ltd | Bury | A rating |
| SPEEDY'S PIZZA & PIRI PIRI LTD | London | A rating |
| SPEEDYFIX SOLUTIONS LTD | PORTSMOUNT | A rating |
| SpeedyHelper Ltd | Harrow | A rating |
| SPEEDYRECON LIMITED | London | A rating |
| Speirs and Major LLP | London | A rating |
| Spekk Ltd | London | A rating |
| Spektr UK Division Limited | London | A rating |
| Spektrix Limited | London | A rating |
| Spellbound From England Limited | Stanmore | A rating |
| Spellman High Voltage Electronics Ltd | Pulborough | A rating |
| Spelthorne Borough Council | Staines-upon-Thames | A rating |
| Spemple Ltd T/A Rosebery House Residential Home | Eastbourne | A rating |
| Spen Motors | Dewsbury | A rating |
| Spence Harris Hogan Ltd | London | A rating |
| Spence Refit Ltd | Watford | A rating |
| Spencer & Arlington Ltd | Loughton | A rating |
| Spencer Cricket Club | London | A rating |
| SPENCER FEEDS (ASIA) LTD | SKEFFINGTON | A rating |
| Spencer Gardner Dickins Limited | Coventry | A rating |
| Spencer McCarthy (Churchill Retirement) | Ringwood | A rating |
| Spencer Mini Market | Northampton | A rating |
| Spencer Ogden Ltd. | London | A rating |
| Spencer Private Hospitals Ltd | Betteshanger, Deal | A rating |
| Spencer Riley Limited | Leeds | A rating |
| SPENCER ROAD LLP T/A THE OMERTA GROUP | LONDON | A rating |
| Spencer Security and Protection Services Ltd | Chadwell Heath | A rating |
| Spencer Street Surgery | Carlisle | A rating |
| Spencer Stuart & Associates Limited | London | A rating |
| Spencer West Global Limited | London | A rating |
| Spencer's Value Mart Limited | Watford | A rating |
| Spencers Wood Village Stores Limited | Reading | A rating |
| Spend & Save A LTD | Tyne & Wear | A rating |
| Spend Well Stores Limited | MANCHESSTER | A rating |
| Spendesk Limited | London | A rating |
| Spendor Audio Systems Limited | Rotherham | A rating |
| Spera Management UK Limited | Northampton | A rating |
| Spericle Limited | Lincoln | A rating |
| Spero London Ltd | Enfield | A rating |
| Sperrin Galvanisers Ltd | MAGHERAFELT | A rating |
| Sperrin Metal Products Ltd | draperstown | A rating |