| Ennismore Fund Management Limited | London | A rating |
| Ennismore Hotel Management UK Limited | London | A rating |
| Ennismore International Management Limited | London | A rating |
| Ennogen Healthcare International Limited | Dartford | A rating |
| ENNOGEN HEALTHCARE LTD | DARTFORD | A rating |
| Ennovi Advanced Mobility Solutions UK Ltd | Arbroath | A rating |
| Enoda Ltd | London | A rating |
| Enodo Economics Limited | London | A rating |
| ENOS ELECTRICS LTD | London | A rating |
| Enoteca Scotland Ltd | Hamilton | A rating |
| Enoteca UK Ltd | Uxbridge | A rating |
| ENOTECA VIMUM LIMITED | LONDON | A rating |
| Enotrac UK Ltd. | Sutton | A rating |
| Enotria Wine Group Limited | London | A rating |
| Enotria Winecellars Limited | London | A rating |
| Enough Energy Ltd | Witney | A rating |
| ENOUGH SAFETY LTD | London | A rating |
| Enova8 Limited | London | A rating |
| ENOVATE CLOTHING UK LIMITED | London | A rating |
| Enovate Systems Limited | Aberdeen | A rating |
| Enovation Consulting Limited | Northampton | A rating |
| Enplan UK Limited | Lewes | A rating |
| Enplas (Europe) Limited | London | A rating |
| ENQUEST BRITAIN LIMITED | ABERDEEN | A rating |
| Enra Group Limited | Borehamwood | A rating |
| Enra Specialist Finance Ltd | Watford | A rating |
| Enray Power Ltd | London | A rating |
| Enreach UK Limited | Telford | A rating |
| ENRG Management Limited | London | A rating |
| ENRICH CONSTRUCTION LTD | Middlesex | A rating |
| ENRICH LEARNING TRUST | Norwich | A rating |
| Enriching Healthcare Ltd t/a Heritage Healthcare Bristol | Bradley Stoke | A rating |
| Enrigin (Europe) Limited | London | A rating |
| Enrish Fernando Ltd | Deven | A rating |
| Enrish Ltd | Devon | A rating |
| Enrisk Consulting Ltd | London | A rating |
| Enro Limited | London | A rating |
| Enroly Ltd | London | A rating |
| ENS Care and Support Limited | Westcliff on Sea | A rating |
| ENS Innovation Centre Limited | Wrexham | A rating |
| Ens Store | Ammanford | A rating |
| ENSAPIA London Ltd | London | A rating |
| Ensco 1399 Limited T/A The Hummingbird Bakery | London | A rating |
| Ensco Services Limited | Aberdeen | A rating |
| Ensek Ltd | Nottingham | A rating |
| Ensemble Productions Ltd | London | A rating |
| ENSEMBLE SOFTWARE (UK) LIMITED | London | A rating |
| ENSHORE SUBSEA LIMITED | Blyth | A rating |
| Ensign Site Services | Meltham | A rating |
| EnSilica | Abingdon | A rating |
| ENSMART POWER LTD | Rayne | A rating |
| ENSO BRICK LANE LTD T/A ENSO | London | A rating |
| ENSOAURA LTD T/A FUSION CLAN | WARWICK | A rating |
| ENSOCELL LTD | Cambridge | A rating |
| Ensono Limited | London | A rating |
| Ensors | Ipswich | A rating |
| ENSPEC Power Ltd | St. Helens | A rating |
| Ensphere Group Limited | Lytham St Annes | A rating |
| Enstar (EU) Ltd | London | A rating |
| Ensurance UK Limited | London | A rating |
| Ensure Care Ltd | Leamington Spa | A rating |
| ENSY SYSTEMS LTD | London | A rating |
| Ent Corporations Limited (trading as Tanvan) | London | A rating |
| ENT IMM LTD | Uxbridge | A rating |
| ENT Ornina Ltd | London | A rating |
| Entain Marketing (UK) Limited | London | A rating |
| Entec International | Halesowen | A rating |
| ENTECH CATERING ENGINEERS (LONDON) LTD | TENTERDEN | A rating |
| Entegra Pipeline Solutions Ltd | Reading | A rating |
| ENTEGRATOR LIMITED | London | A rating |
| Entel UK Limited | Elstree | A rating |
| Entelect United Kingdom Limited | London | A rating |
| ENTERDINE INDIA LTD T/A MAHARJAH | NEWQUAY | A rating |
| Enterkey Training Ltd | Birmingham | A rating |
| Enternships Limited | London | A rating |
| EnteroBiotix Limited | Bellshill | A rating |
| Enterprise AI Technology Ltd | London | A rating |
| Enterprise Analytics UK&I Ltd | Cambridge | A rating |
| Enterprise Architecture Solutions Ltd | Bletchley | A rating |
| Enterprise Care Group Ltd | Stockport | A rating |
| Enterprise Care Support Ltd | Surrey | A rating |
| ENTERPRISE COPILOT LTD | Finchampstead | A rating |
| Enterprise Eight Ltd T/A Landmark Oriental Restaurant | Newcastle | A rating |
| Enterprise ForLife Limited | London | A rating |
| Enterprise Loans East Midlands | Nottingham | A rating |
| Enterprise Logistics & Courier Services Ltd | Waltham Cross | A rating |
| Enterprise Machinery Export UK Ltd | Burscough | A rating |
| Enterprise Nation Ltd | London | A rating |
| Enterprise Rent-A-Car UK Limited | Egham | A rating |
| Enterprise SK (GB) LIMITED | Hampshire | A rating |
| Enterprise System Solutions Limited | Harrow | A rating |
| Enterprise Trade and Knowledge Group Ltd | Colchester | A rating |
| EnterpriseDB UK Ltd | Bracknell | A rating |
| ENTERTAINERS AGENCY LTD | London | A rating |
| Entertainment Partners UK Limited | Wokingham | A rating |
| ENTERTAINMENT TRADE MANAGEMENT (AGENCIES) LTD | MANCHESTER | A rating |
| Entex Projects Limited | Rickmansworth | A rating |
| ENTHOS LTD (T/A Prodigy Lounge) | London | A rating |
| Enthought Limited | Cambridge | A rating |
| ENTIA LTD | LONDON | A rating |
| ENTICE FACILITY MANAGEMENT LTD. | Bracknell | A rating |
| Enticing Foods Ltd T/A Subway | Coventry | A rating |
| Entocycle Ltd | London | A rating |
| Entomics Biosystems Limited | Cambridge | A rating |
| Entopy Limited | Newmarket | A rating |
| Entourage BD Ltd | London | A rating |
| Entourage Diagnostics Limited | Glasgow | A rating |
| Entralon Group Ltd | London | A rating |
| Entralon Technology Limited | London | A rating |
| Entre-prises UK Limited | Kelbrook | A rating |
| ENTRECOTE (OPERATIONS) LTD | London | A rating |
| Entree 2008 LTD | London | A rating |
| ENTREPOSE CONTRACTING (UK BRANCH) | Hammersmith | A rating |
| ENTREPRENEUR BREED NETWORKS LIMITED | MANCHESTER | A rating |
| ENTREPRENEUR PROPERTY LTD | London | A rating |
| ENTREPRENEURS BUSINESS SOLUTIONS LTD | Brighton | A rating |
| Entrepreneurs First Operations Limited | London | A rating |
| Entrepreneurs Global Ltd | London | A rating |
| ENTREPRENOR LIMITED | London | A rating |
| Entrilia UK Ltd | London | A rating |
| ENTROPY DRINKS LTD | London | A rating |
| Entroxy Ltd | London | A rating |
| Entrust (Europe) Limited | Reading | A rating |
| EnTrust Global Ltd | London | A rating |
| Entrust Microgrid Limited | Lancaster | A rating |
| Entrust Professional Services Ltd. | Liverpool | A rating |
| Entrust Security UK Limited | Cambridge | A rating |
| ENTRYMASTER LIMITED | Crewe | A rating |
| EntServ UK Limited | Farnborough | A rating |
| Entuitive UK Ltd | London | A rating |
| Enugu Spot Limited | London | A rating |
| ENV Studio Ltd | London | A rating |
| Enva England Ltd | Nottingham | A rating |
| ENVA PLASTICS LIMITED | Bilsthorpe | A rating |
| Envac UK Ldt | Warwick | A rating |
| Envalior UK Ltd | Manchester | A rating |
| Envance Limited | Stockport | A rating |
| Envantage Limited | Manchester | A rating |
| Envases Liverpool Ltd | Liverpool | A rating |
| ENVEA UK LTD | Cambridge | A rating |
| ENVELOP RISK ANALYTICS LIMITED | BRISTOL | A rating |
| Enver Wealth Management | London | A rating |
| Envertiz Consultancy Ltd | Aberdeen | A rating |
| Envestors Limited | London | A rating |
| Envevo Ltd | Bellshill | A rating |
| ENVI TRADING LTD | Bourne End | A rating |
| Envico Supported Living Ltd | Hayes | A rating |
| Envigo Limited | London | A rating |
| Envigo RMS (UK) Limited | Bicester | A rating |
| Envirisk Ltd | Rotherham | A rating |
| ENVIRO CLEAN PRESTON LTD | Preston | A rating |
| Enviro Contract Solutions Ltd | England | A rating |
| Enviro Medical Limited T/a Consiton Care Home | Felixstowe | A rating |
| Enviro SP Consulting Ltd | London | A rating |
| ENVIRO WISE SOLUTIONS LIMITED | Bristol | A rating |
| ENVIRO-COOL UK LTD | TONBRIDGE | A rating |
| Enviro-Safety Consultancy Ltd. | London | A rating |
| EnviroCentre Limited | Glasgow | A rating |
| Envirolec Smart Energy Solutions (London) Limited | Orpington | A rating |
| Environ Audio Ltd | London | A rating |
| Environ Consultants Limited | New Mills | A rating |
| Environment Agency | York | A rating |
| ENVIRONMENT FRIENDLY TYRES LTD | NORTHAMPTON | A rating |
| Environmental & Site Safety Solutions Limited | Southend on Sea | A rating |
| Environmental Care UK Ltd | Essex | A rating |
| ENVIRONMENTAL COMPLIANCE LIMITED | PONTYPRIDD | A rating |
| Environmental Concern Ltd | Birmingham | A rating |
| Environmental Defense Fund UK | London | A rating |
| Environmental Economics Ltd | LUTON | A rating |
| Environmental Essentials (UK) Limited | Stoke on Trent | A rating |
| Environmental Essentials Ltd | Newcastle under Lyme | A rating |
| Environmental Fabrications Ltd | Dromore | A rating |
| Environmental Finance Ltd | London | A rating |
| Environmental Integrated Solutions Ltd | Bromsgrove | A rating |
| Environmental Investigation Agency International ltd | London | A rating |
| Environmental Justice Foundation Charitable Trust | London | A rating |
| Environmental Power International (UK) Limited | London | A rating |
| Environmental Products and Services Ltd | Newry | A rating |
| Environmental Resources Management Ltd | London | A rating |
| Environmental Services Design Limited | Manchester | A rating |
| Envirosips Limited | Wrexham | A rating |
| Envirotainer Limited | Hayes | A rating |
| Envirotech Facilities Management Ltd | Birmingham | A rating |
| Envirovent Limited | Harrogate | A rating |
| Envirowales Limited | Blaenau Gwent | A rating |
| Envisage Dental UK Limited | Basingstoke | A rating |
| Envisage Dentistry Group Limited | Greenock | A rating |
| Envisage Digital | Bournemouth | A rating |
| Envisage Group Limited | Coventry | A rating |
| Envisics Ltd | Milton Keynes | A rating |
| Envision Accountancy Ltd | Beaconsfield | A rating |
| Envision Contracting Limited | Wallington | A rating |
| ENVISION ENERGY INTERNATIONAL UK LIMITED | London | A rating |
| ENVISION ENERGY UK COE LTD | London | A rating |
| Envision Pharma Group Ltd | Horsham | A rating |
| Envision Racing | Northamptonshire | A rating |
| Envision Sustainability Ltd | London | A rating |
| Enviva Management UK Ltd | Wakefield | A rating |
| Envorem Limited | Stoke-on-Trent | A rating |
| Envoy EMEA Limited | London | A rating |