| InMobi | London | A rating |
| INN CARE LTD | CARDIFF | A rating |
| Inn Collection Trading Limited | Newcastle upon Tyne | A rating |
| Inn Control Management Services Limited T/A The Prince of Wales Baslow | Baslow | A rating |
| Inn Cornwall Limited | Truro | A rating |
| INN HOUSE LIMITED | OMAGH | A rating |
| Inn on the Park (London) Limited doing business as Four Seasons Hotel London | London | A rating |
| INN-ASIA DINING LTD T/A DIYA ROYAL | Kempston | A rating |
| Inna Care Ltd | Romford | A rating |
| Innate Telecoms Ltd | Basingstoke | A rating |
| Innatus Digital | Taunton | A rating |
| INNDEX LIMITED | Beaumaris | A rating |
| INNEO Solutions Ltd | Stratford-upon-Avon | A rating |
| Inner Circle Consulting Limited | London | A rating |
| INNER CITY CARE LIMITED | NOTTINGHAM | A rating |
| Inner City Music Ltd | Manchester | A rating |
| Inner Fire Indian Restaurant | AVON | A rating |
| Inner Park Food and Wine Ltd | London | A rating |
| Innerspace Homes Group Ltd | London | A rating |
| Innertec Limited | London | A rating |
| INNERWORKS TECHNOLOGY LIMITED | Cheshire | A rating |
| Innesco Ltd | White City | A rating |
| inni Ltd | Derby | A rating |
| Inniscastle Care Ltd | Leeds | A rating |
| Innjoy Stay Ltd | Llandudno | A rating |
| INNKEEPER UK LTD | Cardigan | A rating |
| INNO EMENU LTD | Rotherham | A rating |
| INNO-BI SERVICES LTD | BUCKINGHAMSHIRE | A rating |
| Innocare Limited | Harrow | A rating |
| INNOCEAN WORLDWIDE UK LTD | London | A rating |
| INNOCENCE NURSERY LTD. | GLASGOW | A rating |
| innocent ltd | London | A rating |
| Innoconnect Solutions Limited | London | A rating |
| INNOLAB IT LTD | Harrow | A rating |
| Innolink Ltd | London | A rating |
| Innomotics Motors and Large Drives Limited | Salford | A rating |
| Innon Avenue Hotels Ltd T/A Mercure Newport | Newport | A rating |
| INNON ENERGY LTD. | EPSOM | A rating |
| INNOSERVE HEALTHCARE SOLUTIONS LIMITED | London, England | A rating |
| Innospec Limited | Ellesmere Port | A rating |
| Innotec Solutions Ltd | London | A rating |
| INNOTECH DIGITAL & DISPLAY LTD | Bardon, | A rating |
| Innoture | Oxford | A rating |
| Innov8 Development Solutions | Manchester | A rating |
| Innova Care Concepts Limited | Wetherby | A rating |
| Innova Care Limited | Braintree | A rating |
| Innova eCommerce Limited | Huddersfield | A rating |
| INNOVA HEALTHCARE UK LTD | Luton | A rating |
| Innova House Healthcare Limited | Mansfield | A rating |
| Innova Renewables Limited | London | A rating |
| Innova Schools Limited | Reading | A rating |
| INNOVA TECHNOLOGY SOLUTIONS UK LIMITED | London | A rating |
| Innovaderma PLC | london | A rating |
| Innovance London Limited | London | A rating |
| Innovant Enterprise Ltd | High Wycombe | A rating |
| Innovare IP Limited | Edinburgh | A rating |
| Innovate ADHD LTD | London | A rating |
| Innovate Automotive Network Limited | Preston | A rating |
| Innovate Cambridge Ltd | Cambridge | A rating |
| Innovate Complex Care Services Ltd | London | A rating |
| Innovate Energy Solutions Ltd | London | A rating |
| Innovate Finance LTD | London | A rating |
| Innovate Healthcare Management Group Ltd | Stockport | A rating |
| Innovate Industries Ltd, | Greenock | A rating |
| Innovate Product Design Ltd | SALISBURY | A rating |
| INNOVATE42 LTD | London | A rating |
| INNOVATEANDEAT LIMITED | WISBECH | A rating |
| INNOVATIFY LTD | London | A rating |
| Innovation & Innovative UK Limited | London | A rating |
| Innovation Advances Limited (trading as Orthopaedic Innovation) | London | A rating |
| Innovation and Insight Global Limited | London | A rating |
| INNOVATION CONSULTING AND SOLUTIONS LTD | Birmingham | A rating |
| Innovation Eco Solutions Ltd. | London | A rating |
| Innovation Fire Engineering Ltd | Leeds | A rating |
| Innovation Forum Publishing Limited | London | A rating |
| INNOVATION FRESH UK PVT LIMITED | MIDDLESEX | A rating |
| INNOVATION IT CONSULTING LIMITED | London | A rating |
| Innovation Pod Limited | Warwickshire | A rating |
| Innovation Tax Specialists Limited | Welwyn Garden City | A rating |
| Innovation Technology and Business Solutions Limited | London | A rating |
| INNOVATIONS BUILDING SERVICES LTD | Slough | A rating |
| Innovations Consulting Ltd | Bedford | A rating |
| Innovations Wiltshire Ltd | Marlborough | A rating |
| Innovations24 Limited | Leicester | A rating |
| Innovative Accountants (London) Ltd | Weybridge | A rating |
| Innovative Accountants Ltd | Weybridge | A rating |
| Innovative Automated Solutions Ltd | Larne | A rating |
| Innovative Concept Management Ltd | Salford | A rating |
| Innovative Curry Enterprises Ltd | Leeds | A rating |
| Innovative Design and Build Ltd | Hull | A rating |
| Innovative Food Concepts Ltd TA Vivo Latino | Cardiff | A rating |
| Innovative Food Ingredients Ltd | Poulton-le-Fylde | A rating |
| Innovative IT Serv Limited | Norwich | A rating |
| INNOVATIVE IT SERVICES LIMITED | London | A rating |
| Innovative Marketing International Limited | London | A rating |
| INNOVATIVE MEDIA AGENCY LTD | Sheffield | A rating |
| Innovative Physics Limited | Shanklin | A rating |
| INNOVATIVE PRODUCT DEVELOPMENT DESK LIMITED | STOKE ON TRENT | A rating |
| Innovative Property and Lettings Ltd | Sutton Coldfield | A rating |
| Innovative Risk Labs Limited | London | A rating |
| Innovative Safety Systems Limited | Pershore | A rating |
| Innovative Support Limited | Staines Upon Thames | A rating |
| Innovative Systems Incorporated | London | A rating |
| Innovative Team Solutions Ltd | ilford | A rating |
| INNOVATIVE TECHNOLOGY LTD | OLDHAM | A rating |
| Innovatiway Limited | London | A rating |
| Innovatus Advertising Ltd | Altrincham | A rating |
| Innovatus Telecom Services Limited | Wellesbourne | A rating |
| Innovault Ltd | London | A rating |
| Innovent Leasing Limited | London | A rating |
| Innovent Technology Limited | Roslin | A rating |
| Innoverv Global Solutions Ltd | London | A rating |
| Innovez Limited | Richmond | A rating |
| Innovia Films Limited | Wigton | A rating |
| Innovia Group (Holding 3) Ltd | Wigton | A rating |
| Innovia Technology Ltd | Cambridge | A rating |
| Innoviex Limited | London | A rating |
| Innovis Consulting Limited | London | A rating |
| INNOVISION GLOBAL CONSULTING LTD | Chelmsford | A rating |
| Innovisk Services Limited | London | A rating |
| Innovix IT Solutions Limited | Reading | A rating |
| INNOVIZ Limited | Milton keynes | A rating |
| Innovo Holding Limited | London | A rating |
| InnoWave-Tech Limited | Newbury | A rating |
| INNOWISE SOLUTIONS LIMITED | Leicester | A rating |
| Innowood Limited | St.Leonards-On-Sea | A rating |
| Innroom Ltd T/A The Blue Boar Inn | Alcester | A rating |
| Innroom Ltd TA The Blue Boar Inn | Alcester | A rating |
| INNTECH SERVICES LTD | Aylesbury | A rating |
| Innuendo (Bat and Ball) Limited | Fordingbridge | A rating |
| Innventure Ltd | Letchworth Garden City | A rating |
| Innvest Limited | Beaconsfield | A rating |
| INNVILLAGE LTD T/A THE VILLAGE INN | OMAGH | A rating |
| INNVOTEC LIMITED | London | A rating |
| Innvotek Limited | London | A rating |
| INNWOWO LTD | London | A rating |
| INO MOUNT LTD | London | A rating |
| Inoapps Ltd | Aberdeen | A rating |
| Inoltra Limited | London | A rating |
| Inomed Neurocare Limited | London | A rating |
| INORBIT IMPEX LIMITED | London | A rating |
| Inotec AMD Limited | CAMBRIDGE | A rating |
| Inova Business Solutions Limited | London | A rating |
| INOVA KITCHENS LIMITED | LUTON | A rating |
| Inova Parts Ltd | Cheadle | A rating |
| INOVAANTAGE LTD | Reading | A rating |
| Inovar Communications Ltd | SHREWSBURY | A rating |
| INOVATECH SOLUTIONS LTD | COVENTRY | A rating |
| INOVATEK ELECTRONICS LTD | London | A rating |
| INOVATI Limited | Belfast | A rating |
| INOVENTIVE SERVICES LIMITED | Northampton | A rating |
| Inovex Systems Limited | Kettering | A rating |
| Inovia Capital (UK) Limited | London | A rating |
| Inoxilos UK Ltd. | London | A rating |
| INP Engineering & Services UK Ltd | Purley | A rating |
| INPAAS UK LTD | Wrexham | A rating |
| Inpach Solutions Limited | Newcastle upon Tyne | A rating |
| Inpans Two Limited T/A Bridge Convenience | Beckenham | A rating |
| Inperio (Services) Limited | London | A rating |
| INPEX Europe Limited | London | A rating |
| Inploi Limited | Weybridge | A rating |
| InPost UK Limited | London | A rating |
| Inquilab Housing Association Limited | London | A rating |
| INRIX UK Ltd | Altrincham | A rating |
| Inrock Limited | Hove | A rating |
| INS Global Ltd | London | A rating |
| Ins Tech Engineering Solution Ltd | Slough | A rating |
| INS. IT SOLUTIONS LIMITED | London | A rating |
| InSafeHands Limited | Whitchurch | A rating |
| Insanity Media Limited | Greetland | A rating |
| Inscor Healthcare Ltd | Crawley | A rating |
| Inserta Ltd | London | A rating |
| Inserval Global Brokers Limited | London | A rating |
| INSHA TRADING LTD | Southall | A rating |
| INSHALLAH HALAL MEAT LIMITED | Wembley, London | A rating |
| Inshur Services Limited | Brighton | A rating |
| Inside Global | Liverpool | A rating |
| INSIDE JOB BY LELLOW LIMITED | London | A rating |
| Insider International Limited (trading as Insurance Insider) | London | A rating |
| Insider Pro Ltd | Leamington Spa | A rating |
| Insider Services UK Limited | London | A rating |
| Insider Technologies Limited | Greater Manchester | A rating |
| Insiders Group Ltd | Nottingham | A rating |
| Insiders Ventures Advisors Limited | London | A rating |
| InsideSource EMEA Limited | London | A rating |
| Insife UK Ltd | LONDON | A rating |
| Insight Advisory Partners Ltd | Brentford | A rating |
| Insight Analytics Solutions Limited | Nottingham | A rating |
| Insight Care & Support Ltd | Aylesbury, Buckinghamshire | A rating |
| Insight Care Group Ltd | Birmingham | A rating |
| Insight Construction Limited | Romford | A rating |
| Insight Data Analytics Limited | Hatfield | A rating |
| Insight Direct (UK) Ltd | Sheffield | A rating |
| Insight Financial Associates Ltd | Norwich | A rating |
| Insight Global Limited | London | A rating |
| Insight International (UK) Limited | London | A rating |
| Insight Optical BFD Ltd t/a Insight Opticians | Bradford | A rating |
| Insight Out Solutions Ltd | Leeds | A rating |
| Insight Philanthropy and Brand Consulting Ltd | London | A rating |
| INSIGHT REALTY LTD | London | A rating |