| ECIGRUK LIMITED | OLDBURY | A rating |
| ECJ Joinery Ltd | Tadworth | A rating |
| Eckersley O'Callaghan Ltd | London | A rating |
| Eckhart Ltd (Trading as Markettiers) | London | A rating |
| Eckington Cricket Club | Eckington | A rating |
| ECL Trading Ltd | Chelmsford | A rating |
| ECLAT COSMETIC LTD | London | A rating |
| Eclectic Care Bristol | Bristol | A rating |
| Eclectic Wine | London | A rating |
| eClerx Ltd | London | A rating |
| Eclick Solutions Limited | Reading | A rating |
| Eclipse 26 - Trading as Piglets Pantry Ltd | Worthing | A rating |
| Eclipse Air Charter LTD | London | A rating |
| ECLIPSE AUTO PARTS LIMITED | Manchester | A rating |
| Eclipse Brokerage Services Ltd | London | A rating |
| Eclipse Hotel Cardiff Limited | Rhoose | A rating |
| Eclipse Hotels (Bristol) Limited | London | A rating |
| Eclipse Hotels (Heathrow Airport) Limited | London | A rating |
| Eclipse Hotels (Norwich) Limited | London | A rating |
| Eclipse Hotels Limited | London | A rating |
| Eclipse Hotels Management Limited | London | A rating |
| ECLIPSE PHARMA LTD | London | A rating |
| Eclipse Power limited | Milton Keynes | A rating |
| Eclipse Presentations Ltd | Beckenham | A rating |
| ECMS EXPRESS (UK) LTD | Feltham | A rating |
| ECN Construction Service Ltd | Gravesend, Kent | A rating |
| ECO 247 LTD | St Asaph | A rating |
| ECO ALBA LIMITED | Kirkcaldy | A rating |
| ECO Approach Ltd | Beckenham | A rating |
| Eco Assets Manager Limited | Manchester | A rating |
| ECO BOILER GRANT LIMITED | OLDHAM | A rating |
| Eco Build Group Ltd | Slough | A rating |
| Eco Carz Ltd | Slough | A rating |
| Eco Compliance And Solutions Limited | Sheffield, | A rating |
| Eco Contracts Limited | Ilford | A rating |
| Eco Cyclone Limited | London | A rating |
| ECO DISPLAY CABINETS LTD | Haringey | A rating |
| ECO DRINKS LTD T/A CANDY KINGDOM | Derby | A rating |
| Eco Efficient Home Solutions Ltd t/a EEH Solutions | Harlow | A rating |
| Eco Engineering Installations Limited | Brough | A rating |
| ECO EV CHARGERS LIMITED | Birmingham | A rating |
| ECO FIT SERVICE LIMITED | Leicester | A rating |
| Eco Food Services Limited | Newport | A rating |
| Eco Frames Oldbury Ltd | Birmingham | A rating |
| Eco Fresh Limited | Ilford | A rating |
| Eco Friendly Services Ltd | Harrow | A rating |
| Eco Garden Construct Ltd | London | A rating |
| ECO GG LTD | Uxbridge | A rating |
| Eco Grants Team Ltd | Bristol | A rating |
| Eco Grants UK Ltd | Blackburn | A rating |
| ECO GREEN CANOPY LTD | WARRINGTON | A rating |
| ECO GREEN HOME GRANTS LTD | Slough | A rating |
| ECO GREEN SURVEY LTD | Slough | A rating |
| ECO GREEN UPGRADES LTD | Luton | A rating |
| Eco Greenenergy Solutions Ltd | Epping | A rating |
| ECO HEATING WM LTD | Birmingham | A rating |
| ECO HOME PLANS LTD | Birmingham | A rating |
| Eco Homes Direct Ltd | Cardiff | A rating |
| ECO HOMEZ LIMITED | London | A rating |
| ECO HORIZON LTD | Slough | A rating |
| ECO IL LIMITED | London | A rating |
| ECO LEAF PRODUCTS LIMITED | HEMEL HEMPSTEAD | A rating |
| Eco Ltd | London | A rating |
| ECO PLANET AIR CONDITIONING LIMITED | Ilford | A rating |
| ECO POWER BUSINESS LTD | Birmingham | A rating |
| Eco Property Development Global Ltd | Lancaster | A rating |
| Eco Property Developments Ltd | Slough | A rating |
| ECO REAL INSULATION LTD | Milton Keynes | A rating |
| ECO RESTAURANTS & INVESTMENT GROUP LIMITED | London | A rating |
| ECO RETROFIT SOLUTIONS LTD | BIRMINGHAM | A rating |
| ECO Simplified Limited | Richmond | A rating |
| Eco Sourcing Hub LTD | Sale | A rating |
| Eco Sports Limited | London | A rating |
| ECO SUBS LIMITED | Luton | A rating |
| Eco Systems Group Ltd | Kent | A rating |
| ECO TARGET LTD | Essex | A rating |
| Eco Travel Private Hire Ltd | Stoke On Trent | A rating |
| Eco Tyres Global | Southampton | A rating |
| ECO VIRAL LTD | Wallasey | A rating |
| ECO-AQUA SERVICES LTD | CORBY | A rating |
| Eco-Bos Developments Ltd. | Cornwall | A rating |
| Eco-Campsites Ltd | Reading | A rating |
| Eco-Cool | London | A rating |
| ECO-WORTHY CLEAN ENERGY UK LTD | Manchester | A rating |
| Eco2life Co. Ltd | London | A rating |
| ECO4 Energy Solutions Ltd | Oldham | A rating |
| ECO4 GRANTS SOLUTION LTD | Ilford | A rating |
| Eco4 Limited | Essex | A rating |
| Eco4 Pro Limited | London | A rating |
| ECO4U ENERGY SERVICES LTD | BRADFORD | A rating |
| Eco4vital Ltd | Blackburn | A rating |
| Ecoaly Limited | Maidenhead, | A rating |
| Ecobase Solutions Ltd | Manchester | A rating |
| Ecobat Resources UK Ltd | MATLOCK | A rating |
| Ecobat Solutions UK Ltd | Darlaston | A rating |
| Ecobility Ltd | COVENTRY | A rating |
| Ecobride Ltd | London | A rating |
| ECOBUILD GREEN BUILDING CONSULTANTS LIMITED | ENGLAND | UK Expansion Worker: Provisional |
| EcoDuct Limited | Fleetwood | A rating |
| Ecoffee Cup Limited | London | A rating |
| ECOFUSION STRATEGIES LTD | London | A rating |
| Ecofye Ltd | London | A rating |
| ECOGEN ELECTRIC LTD | Barking | A rating |
| ECOGENIUS LIMITED | Surrey | A rating |
| EcoGlow Heating & Plumbing LTD | Teddington | A rating |
| ECOGREEN ENGINEERS LTD | London | A rating |
| Ecohardwood Ltd | London | A rating |
| Ecohog Ltd | Omagh | A rating |
| EcoHub Technologies Limited | Exeter | A rating |
| ECOINSULATIONPOINT LIMITED | Slough, | A rating |
| Ecoit Solutions Ltd | Nottingham | A rating |
| Ecolab Limited | Northwich | A rating |
| Ecole Francaise de Londres Jacques Prevert | London | A rating |
| Ecolibrium Inc Ltd | London | A rating |
| Ecolion Housing Ltd | London | A rating |
| ECOLITE ENERGY SOLUTIONS LTD | Romford | A rating |
| ecollective travel ltd | London | A rating |
| Ecolog International (UK) Limited | Harlow | A rating |
| Ecologi Action Ltd | London | A rating |
| ecologicstudio | London | A rating |
| ECOLOGITAL LIMITED | HARROW | A rating |
| Ecolutia Services Ltd. | Peterborough | A rating |
| Ecolution Group Limited | West Malling | A rating |
| ECOLUTION INTERNATIONAL GROUP LTD | London | A rating |
| ECOM AGROTRADE LIMITED | London | A rating |
| Ecom Global Network Ltd | Chalfont St Giles | A rating |
| ECOM INNOVATIONS LTD | Feltham | A rating |
| eCom Scotland Ltd | Dunfermline | A rating |
| ECOM TRADING LIMITED | Harrow | A rating |
| Ecom Vertex LTD | Birmingham | A rating |
| Ecommerce Supply Chain Ltd | Southampton | A rating |
| Ecommerce Technologies Ltd | Essex | A rating |
| ECOMMPAY LIMITED | London | A rating |
| Ecompanda Limited t/a Subway | London | A rating |
| ECOMTEX LTD | Wolverhampton | A rating |
| EcoNation Recycling (UK) Limited | Ellesmere Port | A rating |
| Econavis Solutions Limited | Glasgow | A rating |
| Econergy International Limited | London | A rating |
| ECONERGY SOLUTIONS LTD | Worcestershire | A rating |
| Econet Investments Limited | London | A rating |
| Econic Biosciences Limited | London | A rating |
| Econic Energy Ltd | Edgware | A rating |
| Econic Technologies Ltd | Macclesfield | A rating |
| Econic UK Limited | London | A rating |
| ECONNECTIVITY LIMITED | Sheffield | A rating |
| ECONOMAD SOLUTIONS LTD. | LONDON | A rating |
| Economic and Commercial Office - Spanish Embassy | London | A rating |
| Economic Consulting Associates Limited | London | A rating |
| ECONOMIC DATA SCIENCES LTD | SLOUGH | A rating |
| Economic Development Incorporated Ltd | London | A rating |
| Economic Insight | London | A rating |
| Economic Media Bulletin Ltd | London | A rating |
| Economic Modelling UK Ltd T/A Lightcast | Hampshire | A rating |
| Economic Research Services Limited | Helsby | A rating |
| Economic, Social and Cultural Rights in the U.K | London | A rating |
| Economics for the Environment Consultancy Ltd | London | A rating |
| Econotech Limited | Pulborough | A rating |
| Econova Consultancy Limited | London | A rating |
| ECONOVA FRANCHISE LIMITED | Cardiff | A rating |
| Econsultancy Limited | London | A rating |
| ECOONER COSMETICS LONDON LTD | London | A rating |
| Ecoonline UK Ltd | London | A rating |
| ECOPORTAL UK LIMITED | Leeds | A rating |
| Ecor Trading Ltd | Salford | A rating |
| EcoRenew Holdings (UK) Limited | Morecambe | A rating |
| Ecorys | Birmingham | A rating |
| ECOSAVE INSTALLATION LTD | GLASGOW | A rating |
| Ecosecurities Limited | London | A rating |
| Ecoserv Group Limited | Wallingford | A rating |
| Ecospend Technologies Limited | London | A rating |
| Ecospheric Ltd | Lymm | A rating |
| Ecosurety Ltd | Bristol | A rating |
| ECOTAX LTD | MANCHESTER | A rating |
| ECOTECH CONTRACTS LIMITED | Glasgow | A rating |
| Ecotecture Ecological Design | West Sussex | A rating |
| Ecotex London Limited | London | A rating |
| Ecotricity Group Limited | Stroud | A rating |
| EcoVadis UK Limited | London | A rating |
| ECOVAIR ENERGY LTD | Ilford | A rating |
| Ecover UK Limited | Camberley | A rating |
| Ecoveritas Limited | Oxford | A rating |
| Ecovia Limited | London | A rating |
| Ecovis Wingrave Yeats LLP | London | A rating |
| ECOWAS RESTAURANT LTD | LONDON | A rating |
| Ecowaste Ltd | Bellshill | A rating |
| ECOWELLE LIMITED | Surbiton | A rating |
| ECP Investments LLP | London | A rating |
| eCreation Media Technology Ltd | Poole | A rating |
| ECRU ENERGY LTD | Doncaster | A rating |
| ECRUZ LTD | London | A rating |
| ECS SERVICES LTD | London | A rating |
| ECSI LTD | Mitcham | A rating |
| ECSTATIC ESTATE LIMITED | DOVER | A rating |
| ECT AVIATION SUPPORT LTD | LONDON | UK Expansion Worker: Provisional |
| Ecu Testing Ltd | Heanor | A rating |
| eCube Solutions Limited | Barry | A rating |
| ecx.io Ltd | Bracknell | A rating |
| Ed Carleton UK Ltd | Watford | A rating |
| ED Catering Ltd t/a Ristorante La Barca | London | A rating |
| ED CHILD AND ADOLESCENT PSYCHIATRY EXPERTS LIMITED | Tewkesbury | A rating |