| IBISWorld Ltd | London | A rating |
| IBITS R LIMITED | Kirkcaldy | A rating |
| Ibiznet Services Ltd | London | A rating |
| Ibkhas service limited | London | A rating |
| IBLAZE VAPE SALE LTD | SALE | A rating |
| IBM UK Ltd | Winchester | A rating |
| IBN LEICESTER LIMITED | Leicester | A rating |
| IBN SINA LTD | LONDON | A rating |
| IBNAN SOLUTIONS LTD | LONDON | A rating |
| IBO SUTTON LTD T/A TURKNAZ SUTTON COLDFIELD | Solihull | A rating |
| Ibomonti Turizm Limited | London | A rating |
| Ibonshourne Ltd | London | A rating |
| IBOSA PROPERTIES UK LTD | LONDON | A rating |
| Iboski African Shop Ltd | Hartlepool | A rating |
| IBOX Healthcare Ltd | Leeds | A rating |
| IBR PROPERTY SERVICES LTD. | Harrow | A rating |
| Ibra's Pizza & Grill AKA I & I Pizza & Grill Ltd | Sheffield | A rating |
| IBRAHIM & RAYAN TECHNOLOGIES LTD | Didcot | A rating |
| IBRAHIM 15 LTD | Edinburgh | A rating |
| IBRAHIM 89 LTD | Nottingham | A rating |
| IBRAHIM CONSULTANTS LIMITED | BOLTON | A rating |
| IBRAHIM FABRICS LIMITED | Manchester | A rating |
| IBRAHIM TRADERS LTD | AYRSHIRE | A rating |
| Ibrahim's Halal Meat Ltd | Leicester | A rating |
| IBRAHIMI (PETERBOROUGH) LTD | Peterborough | A rating |
| IBRAINERS LTD | London | A rating |
| iBreathe Ltd | Oldham | A rating |
| IBS (London) Ltd | London | A rating |
| IBS Software Europe Ltd | Bracknell | A rating |
| IBS VP Limited | London | A rating |
| IBSA Pharma Ltd | Watford | A rating |
| IBSECAD LTD | London | A rating |
| Ibsela Limited | Potters Bar | A rating |
| ibsho care limited | london | A rating |
| IBSPRAYS LIMITED | London | A rating |
| Ibstock Brick Limited | Ibstock | A rating |
| Ibstock Place School | London | A rating |
| Ibstock Town Cricket Club | IBstock | A rating |
| IBT FABRICS LTD | Birmingham | A rating |
| IBT Media Ltd | London | A rating |
| IBU Consulting Ltd | Harrow | A rating |
| IBUILD PROPERTY SERVICES LIMITED | London | A rating |
| IBUK Ventures Limited | London | A rating |
| IBZ HALAL LTD | LUTON | A rating |
| IBZ Motorz Limited | Romford | A rating |
| IC BLUE LTD | Leeds | A rating |
| IC BUILDERS & CONSTRUCTION LTD | London | A rating |
| iC Consult UK Limited | London | A rating |
| IC Impact Consulting Ltd | London | A rating |
| IC Publications Ltd | London | A rating |
| IC SALSBURGH LIMITED | Shotts | A rating |
| IC Shields Limited T/A Indian Chef | Motherwell | A rating |
| IC Training Centre Limited | Ilford | A rating |
| ICAD HOLDING LTD | London | A rating |
| ICAHT Ltd | Leicester | A rating |
| ICAKES LONDON LIMITED | Ilford | A rating |
| iCapital UK International Limited | London | A rating |
| ICAPPIC LTD | LONDON | A rating |
| ICAPS ENTERPRISES LIMITED | Shepton Mallet | A rating |
| ICare Coventry Limited | Coventry | A rating |
| ICARE DENTAL LTD | London | A rating |
| iCare Health Professionals Ltd | Mayfair | A rating |
| ICare Healthcare Ltd | New Milton | A rating |
| ICARE LIVING LIMITED | Birmingham | A rating |
| ICare Resource Limited | Barking | A rating |
| iCare Services Agency Limited | West Midlans | A rating |
| Icare Solutions Global Ltd | Manchester | A rating |
| iCare Solutions Stockport | Stockport | A rating |
| iCare Solutions Wirral Ltd | Wallasey | A rating |
| ICAREER CONSULTANCY UK LTD | London | A rating |
| Icarus Online SCIO | Edinburgh | A rating |
| ICASE LTD T/A FonePlanet | Preston | A rating |
| ICAX Limited | London | A rating |
| ICBC (London) plc | London | A rating |
| ICBC Standard Bank PLC | London | A rating |
| ICBS Synergy Private Limited | London | A rating |
| ICC Missions | Buckhurst Hill | A rating |
| ICC RETAIL INVESTMENT LTD | London | A rating |
| ICDS Constructors (UK) Limited | Harrow | A rating |
| ICE & SPICE SKELMANTHORPE LTD | Huddersfield | A rating |
| ICE ACCESSORIES LIMITED | London | A rating |
| ICE BERRY LIMITED | Manchester | A rating |
| Ice Boba Limited | Monmouth | A rating |
| Ice Box 85 Limited t/a Maple Cryotherapy | Hamilton | A rating |
| ICE CREAM VANS DESSERTS LTD | London | A rating |
| ICE Data Services Europe Limited | London | A rating |
| ICE MARKETS LTD | london | A rating |
| ICE SPORT (DUNDEE) LTD | Dundee | A rating |
| Ice Stone Supplies Ltd | Bradford | A rating |
| ICE SUPPORT LIMITED | Welwyn Garden City, | A rating |
| Ice Support Limited T/A Nevetal | Welwyn Garden City | A rating |
| ICE Teaching LLP | Manchester | A rating |
| Ice Travel Group Limited | Leeds | A rating |
| ICE TREE COMPANY LTD | LONDON | A rating |
| ICEBERG ENTERPRISE LTD T/A DAY TODAY | GLASGOW | A rating |
| Iceberg Ideas Limited | Waltham Abbey | A rating |
| Icebrg Limited | London | A rating |
| Iceburg (Manchester) Limited T/A Haute Dolci Manchester | Manchester | A rating |
| ICECUK Ltd | Freshwater | A rating |
| iCede Solutions Limited | Liverpool | A rating |
| Icelabz Solutions Ltd | Harrow | A rating |
| Iceland Foods Limited | Deeside | A rating |
| Iceline Yorkshire Ltd | Whitley | A rating |
| IceMOS Technology | Belfast | A rating |
| Icen Risk Limited | London | A rating |
| Iceni Glycoscience Limited | Norwich | A rating |
| Iceni Labs Limited | London | A rating |
| ICENI PROJECTS LIMITED | London | A rating |
| Iceotope Technologies Limited | Catcliffe | A rating |
| Icertis Group Limited | London | A rating |
| ICEYE INFORMATION SOLUTIONS UK LTD | LONDON | A rating |
| ICF Consulting Services Limited | London | A rating |
| ICG Medical Limited | London | A rating |
| ICG PLC | London | A rating |
| ICHIBAN | Edinburgh | A rating |
| Ichiban 3BZ Ltd | Windsor | A rating |
| Ichibanya UK Ltd | London | A rating |
| ICIC ASSOCIATES LONDON LTD | London | A rating |
| ICICI Bank UK PLC | London | A rating |
| iCIMS International LLC | London | A rating |
| ICit Business Intelligence Limited | Cheshire | A rating |
| Ickenham Cricket Club | Ickenham | A rating |
| ICKFORD CONVIENCE STORES LTD | Aylesbury | A rating |
| Icknield High School | Luton | A rating |
| ICKNIELD STORES LTD | Royston | A rating |
| Icknield Veterinary Group Ltd | Dunstable | A rating |
| Icknox Motors | St Albans | A rating |
| Ickonic Media Group Limited | Derby | A rating |
| ICM Advisers Limited | London | A rating |
| ICM CAPITAL LIMITED | London | A rating |
| ICM Investment Management Ltd. | Epsom | A rating |
| ICMP Management Limited | Kilburn | A rating |
| ICMP MANAGEMENT LIMITED | London | A rating |
| ICNH Ltd | Windsor | A rating |
| ICO Partners Limited | Brighton | A rating |
| Icocolens Ltd | Birmingham | A rating |
| ICOMAT Ltd | Bristol | A rating |
| Icomera UK Limited | Chatham | A rating |
| Icon Books Ltd | London | A rating |
| ICON Clinical (UK) Limited | Reading | A rating |
| ICON Corporate Finance Limited | Bristol | A rating |
| Icon Environmental Limited | London | A rating |
| Icon Fabrications Limited | Edinburgh | A rating |
| Icon Global Services Ltd | Brentford | A rating |
| iCON Infrastructure LLP | London | A rating |
| ICON IT SERVICES LIMITED | London | A rating |
| Icon Solutions (UK) Ltd | London | A rating |
| Icon Tiles Limited | Crook | A rating |
| ICON WINDOWS LTD | London | A rating |
| Icone International LTD | Harrow | A rating |
| Iconic Consulting Limited | London | A rating |
| Iconic Kitchens & Bedrooms Ltd | Hayes | A rating |
| Iconic London (Holdings) Limited | London | A rating |
| Iconic Luxury Hotels Limited | London | A rating |
| ICONIC PROPERTY INVESTMENT LIMITED | Isle of Wight | A rating |
| Iconicdent Ltd | Norwich | A rating |
| ICONICHEM WIDNES LIMITED | WIDNES | A rating |
| ICONICS UK LIMITED | DUDLEY | A rating |
| ICONIQ Capital (UK) Limited | London | A rating |
| Iconiq Innovation Ltd | Market Harborough | A rating |
| ICONIUM PARTNERS LTD | LONDON | A rating |
| iConix Design Ltd | Warwick | A rating |
| iConnect Digital Solutions Ltd | Northfleet | A rating |
| ICONNECT GP SERVICES LIMITED TA Bags and More Tech Solution | Bedworth | A rating |
| ICONNECT S & M LIMITED TA ICONNECT | Coventry | A rating |
| Iconoclast Content Limited | London | A rating |
| Icons of Denmark Limited | London | A rating |
| Icons Shop Limited | Christchurch | A rating |
| Icopify Ltd | Liverpool | A rating |
| Icore Digital Ltd | Silsoe | A rating |
| Icosphere Biosciences | Oxford | A rating |
| iCoupon Global Limited | Ilkley | A rating |
| iCOVER (Screening) Ltd | London | A rating |
| ICP (UK) Limited | South Croydon | A rating |
| ICR Publications Ltd | Newcastle Upon Tyne | A rating |
| ICRACK BOURNEMOUTH LTD | Bournemouth | A rating |
| Icrash Mobiles Ltd | Canterbury | A rating |
| ICREAM AND DONUT LTD | Liverpool | A rating |
| Icreon UK Ltd | London | A rating |
| ICRIT Healthcare limited | Bolton | A rating |
| iCrossing Limited | Brighton | A rating |
| ICS Consulting Limited | Leeds | A rating |
| ICS.AI Limited | Basingstoke | A rating |
| ICSS LTD | Aberdeen | A rating |
| ICT Revolutions Ltd | Oswestry | A rating |
| ICTI Care (Europe) Limited | London | A rating |
| ICTS Europe Systems Limited | London | A rating |
| ICTS UK Ltd | London | A rating |
| ICU Medical International Limited | Ashford | A rating |
| iCubeDALPro Limited t/a iCareServicesGroup | BARKING | A rating |
| ICUK CORPORATION LIMITED | London | A rating |
| ICVCM Limited | Liverpool | A rating |
| ICW Group Holdings Ltd | Belfast | A rating |
| ICW Technical Services | Belfast | A rating |
| iCyberDefence Limited | London | A rating |
| ID Comms Ltd | LONDON | A rating |
| ID Cyber Solutions Ltd | Glasgow | A rating |
| ID Logistics and Transportation LTD | Northampton | A rating |
| ID Logistics Services UK Ltd | Milton Keynes | A rating |
| ID MEDICAL GROUP LIMITED | WOLVERTON MILL SOUTH | A rating |