| Envoy Partnership | London | A rating |
| ENVY POST PRODUCTION LIMITED | London | A rating |
| Enwa Water Technology UK | Desford | A rating |
| Enyo Law LLP | London | A rating |
| ENZEE BROCKENHURST LIMITED | Weymouth | A rating |
| Enzen Global Limited | Solihull | A rating |
| Enzo Agassi Holdings Ltd t/a Coco Asia | Grays | A rating |
| Enzo Products Limited | London | A rating |
| Enzo Ristorante Ltd | Dorset | A rating |
| ENZONE GLOBAL LIMITED | Barking | A rating |
| Eon Productions Ltd | Iver Heath | A rating |
| EOPP LTD. | North Finchley | A rating |
| EOR SERVICES LTD | BURTON ON TRENT | A rating |
| EOS Bakehouse Ltd | London | A rating |
| EOS CLIMATE AND ENERGY LTD | Windsor | A rating |
| EOS Deal Advisory Ltd | LONDON | A rating |
| EOS Electro Optical Systems Limited | Warwick | A rating |
| EOS IT MANAGEMENT SOLUTIONS UK LTD | Hillsborough | A rating |
| EOS PACKAGING SOLUTIONS CO LTD | MANCHESTER | A rating |
| EOT Staines Ltd t/a eggham on toast | Staines | A rating |
| EP Advisory Group Limited | London | A rating |
| EP COMMODITIES A.S. LONDON BRANCH | London | A rating |
| EP COMMODITIES LTD | London | A rating |
| EP ELECTRICS LTD | Milton Keynes | A rating |
| EP Medical Group Ltd | Altrincham | A rating |
| EP Resource Limited | Watford | A rating |
| Ep Traffic Services Ltd | Crick | A rating |
| EP UK Investments Ltd | London, | A rating |
| EP&T Global Limited | London | A rating |
| EPA Manufacturing Ltd | Wickenby | A rating |
| EPAA (2016) LIMITED | Portsmouth | A rating |
| ePac Holdings Europe Ltd | Wolverhampton | A rating |
| Epaccsys Ltd | Leicester | A rating |
| EPAM Systems Ltd | London | A rating |
| EPARA LIMITED | Westminster | A rating |
| ePass | Edinburgh | A rating |
| Epassi UK Limited | Haywards Heath | A rating |
| Epaton Ltd | London | A rating |
| epay Ltd | Woodbrook Crescent | A rating |
| EPC FAST FOOD LIMITED T/A Emparo Pizza Crawley | Crawley, | A rating |
| EPC UK GLOBAL LTD | Cheltenham | A rating |
| EPC United Kingdom Limited | Alfreton | A rating |
| EPCO ENERGY SOLUTIONS LTD | CHEADLE | A rating |
| EPConsult Energies Ltd | London | A rating |
| EPFR LTD | London | A rating |
| EPG Business Limited (T/A EPIC Global Solutions) | Appley Bridge | A rating |
| EPG Communications Holdings Ltd | Tunbridge Wells | A rating |
| EPG Strategic Communications Limited | London | A rating |
| Ephesus Restaurant Ltd | Leeds | A rating |
| Ephyrm Healthcare Services LTD | Birmingham | A rating |
| EPI (Europe) Limited | London | A rating |
| EPI-USE Labs Limited | Manchester | A rating |
| EPI-USE Ltd | Richmond | A rating |
| EPIC Administration Limited | LONDON | A rating |
| Epic Bristol Limited | Bristol | A rating |
| Epic Care Services Bradford Limited | Hunslet | A rating |
| Epic Caterers | Cardiff | A rating |
| Epic Elite Ltd | London | A rating |
| Epic Equip Ltd | Luton | A rating |
| EPIC FOOS LIMITED | LUTON | A rating |
| Epic Games UK ltd | Guildford | A rating |
| Epic Games UK Ltd | London | A rating |
| Epic IT Limited | Potters Bar | A rating |
| Epic Management Limited | London | A rating |
| EPIC Private Equity LLP | London | A rating |
| Epic Sourcing (UK) Ltd | London | A rating |
| Epic Weddings Ltd | Halesowen | A rating |
| EPIC-KICK LTD | Bristol | A rating |
| EPICARE SOLUTIONS LTD | London | A rating |
| Epicat Ltd | Newcastle Upon Tyne | A rating |
| EPICFIX LTD | Ilford | A rating |
| EPICON CONSTRUCTION LTD | Luton | A rating |
| Epicor Software (UK) Limited | Bracknell | A rating |
| EPICORA LIMITED | Redditch | A rating |
| EpicUK Ltd | ILFORD | A rating |
| Epicurean Dairy (UK) Limited | London | A rating |
| EPICUREAN HORIZONS LTD T/A The Dhabba | Glasgow | A rating |
| EPIGEM LIMITED | Redcar | A rating |
| Epigram Communications and Design | Manchester | A rating |
| EPIIPLUS1 Ltd t/a Exponential View | Essex | A rating |
| Epikuria Ltd | London | A rating |
| Epilepsy Society | Chalfont St Peter | A rating |
| Epimorphics Ltd | Bristol | A rating |
| Epion Technologies Ltd | Stirling | A rating |
| Epiphany Care Services Ltd | London | A rating |
| Epiphany Consulting Ltd | Cambridge | A rating |
| Epiphany in Care | Bristol | A rating |
| Epiq Systems Ltd | London | A rating |
| Epiris LLP | London | A rating |
| Epiroc UK & Ireland Limited | Hemel Hempstead | A rating |
| EPIROS UK LIMITED | Harrow | A rating |
| EPIRUS RESTAURANT LIMITED | Birmingham | A rating |
| Episode 1 Ventures LLP | London | A rating |
| Episode Six Limited | London | A rating |
| Epistem Limited | Manchester | A rating |
| Episteme Capital Partners (UK), LLP | London | A rating |
| Epitomical Limited | Guildford | A rating |
| Epitopea Ltd | Cambridge | A rating |
| EPL PROPACK UK LIMITED | Reigate | A rating |
| EPLOUGH CONSULTING LIMITED | Cambridgeshire | A rating |
| EPM | London | A rating |
| EPM Environmental Project Management Limited | Brampton | A rating |
| Epoch Biodesign Ltd. | London | A rating |
| Epoch Blue Ltd | London | A rating |
| Epoch Capital Ltd | London | A rating |
| Epoch Centres Limited | Lincoln | A rating |
| Epoch Consultancy London Limited | Hertfordshire | A rating |
| Epoch Design Limited | Bristol | A rating |
| Epoch Making Toys Limited | Uxbridge | A rating |
| Epos Now Ltd | Norwich | A rating |
| EPOS WORLDWIDE LTD T/A QUICK TILLS | High Wycombe | A rating |
| Eposability Limited | Watford | A rating |
| Eppendorf Cryotech | Maldon | A rating |
| Eppendorf UK Limited | Stevenage | A rating |
| Epping Cricket Club | Epping | A rating |
| EPPING MANAGEMENT LTD | Mitcham | A rating |
| Eppix eSolution Limited | London | A rating |
| Eppleton Cricket Club | Houghton le Spring | A rating |
| EPR ARCHITECTS LIMITED | LONDON | A rating |
| EPR Services Ltd | Ilford | A rating |
| EPROD SOFTWARE UK LTD | Dronfield | A rating |
| Epropelled LTD | Cardiff | A rating |
| eProperty Services Ltd | Virginia Water | A rating |
| EPS Builders Limited | Birmingham | A rating |
| EPS CORPORATION LTD | Harlow | A rating |
| EPS Pipeworks Limited | Hull | A rating |
| EPS Services & Tooling Ltd | Taunton | A rating |
| EPS Worldwide Limited | West Drayton | A rating |
| Epscot Limited | Pinner | A rating |
| Epsilogen Ltd | London | A rating |
| Epsilon Education Limited | Dagenham | A rating |
| Epsilon International UK Limited | London | A rating |
| Epsilon Telecommunications Ltd | London | A rating |
| Epsom & Ewell Cars Limited | Epsom | A rating |
| Epsom and St Helier University Hospitals NHS Trust | Carshalton | A rating |
| Epsom College | Epsom | A rating |
| Epsom Cricket Club | Epsom | A rating |
| Epsom Dental Centre Ltd. | Epsom | A rating |
| Epsom Service Station Limited | Epsom | A rating |
| Epsom Specsavers Hearcare Ltd | Epsom | A rating |
| Epsom Subway Limited | Epsom | A rating |
| Epson Europe BV | Watford | A rating |
| Epson Telford Limited | Telford | A rating |
| Epta UK Limited | Ringwood | A rating |
| Eptg | uxbridge | A rating |
| Eptura International Limited | London | A rating |
| Epworth Ltd T/A Lalbagh | Cambridge | A rating |
| EQ Hotels Limited | London | A rating |
| eQ Technologic (UK) Limited | SOLIHULL | A rating |
| EQL2 Light | Watford | A rating |
| Eqonic Group Limited | London | A rating |
| EQS Group Limited | London | A rating |
| EQT Partners Limited | London | A rating |
| EQTF Branch UK | London | A rating |
| Equa Multi Academy Trust | DEVIZES | A rating |
| Equal Experts UK Limited | London | A rating |
| Equal Experts UK Ltd | London | A rating |
| EQUAL FORCE SECURITY SERVICES LIMITED | Sheffield | A rating |
| Equal London Ltd | London | A rating |
| Equal People mencap | London | A rating |
| EQUALITY ENTERPRISE LIMITED | Kingston | A rating |
| Equality Homecare Services Ltd. | Manchester | A rating |
| EQUALITY SOLUTIONS GROUP LIMITED | Hebburn | A rating |
| Equals Collective Limited | London | A rating |
| Equals Consulting Ltd | London | A rating |
| EQUALS GROUP PLC | London | A rating |
| Equation Lighting Design Ltd | London | A rating |
| EQUATION SOLUTION LTD | St Albans | A rating |
| EQUATIV LTD | Altrincham | A rating |
| Equator Services Limited | Coventry | A rating |
| Equatorial Traders Limited | London | A rating |
| Equi-Trek Ltd | Sheffield | A rating |
| Equias Ltd | Leatherhead | A rating |
| Equib Limited | Clitheroe | A rating |
| Equibreed UK Ltd | Beenham, Reading | A rating |
| EQUICARE SERVICES LTD | Uxbridge | A rating |
| Equiduct Systems Limited | London | A rating |
| Equiem Services Limited | London | A rating |
| Equifax Limited | Leeds | A rating |
| EQUIFIN ACCOUNTANCY LTD | Harrow | A rating |
| Equifinance Limited | London | A rating |
| Equiida Ltd | London | A rating |
| EquiLend Europe Limited | London | A rating |
| Equilibrium Labs Group Limited | London | A rating |
| Equine Dental Clinic Ltd | Wimborne St Giles | A rating |
| Equine Reproductive Services (UK) Ltd | Malton | A rating |
| Equine Sport Vets Limited | Horsham | A rating |
| Equine Veterinary Dentist | Richmond | A rating |
| EQUINE WORLD LIMITED | Newmarket | A rating |
| Equiniti Limited | Lancing | A rating |
| Equinix Services Limited | London | A rating |
| Equinor UK Limited | London | A rating |
| Equinox Automation & controls Ltd. | Wellingborough | A rating |
| Equinox Fitness Holdings UK Limited | London | A rating |
| Equinox Physiotherapy Partnership Ltd | Cross Hands Business Park | A rating |
| Equinox Security Ltd | Birmingham | A rating |
| Equion Energia Limited | London | A rating |
| Equip Outdoor Technologies UK Limited | Alfreton | A rating |
| Equipmake Limited | Snetterton | A rating |
| Equipment HQ Limited | Hertfordshire | A rating |