| UK Company Name | Partial Address |
| I Squared Capital (Uk Parent) Limited | MAYFAIR, LONDON |
| I-Sys Technical Ltd | NEWTOWNABBEY, COUNTY ANTRIM |
| Is Healthcare Dynamics Limited | 127-131 GREAT SUFFOLK STREET, LONDON |
| Is Pharma Ltd | Chester Business Park, Chester |
| Isa Support Services Limited | Balsall Heath, Birmingham |
| Isaac Agnew (Holdings) Limited | Belfast, County Antrim |
| Isaac Agnew (Mallusk) Limited | Belfast |
| Isaac Agnew Limited | Belfast |
| Isaac Lyons Holdings Limited | 26 LINENHALL STREET, BELFAST |
| Isaac Wholesale Limited | IVATT WAY, PETERBOROUGH |
| Isaco Limited | Mossley, Lancashire |
| Isambard Associates Ltd | NEWRY, COUNTY DOWN |
| Isams Limited | 470 LONDON ROAD, SLOUGH |
| Isbir Bulk Bag Uk Limited | Cupar, Fife |
| Isbister Bros. Limited | STROMNESS, ORKNEY |
| Isc Software Solutions Limited | Huntingdon, Cambridgeshire |
| Iscar Tools Limited | Bartley Green, Birmingham |
| Isd Solutions Ltd | Old Amersham, Bucks |
| Ise Fire Products & Services Limited | LITTLE HARROWDEN, NORTHAMPTONSHIRE |
| Ise Group Limited | WHITFIELD, DOVER |
| Isfahan Carpet Palace Limited | Hove, East Sussex |
| Isg (Group Services) Limited | Guildford, Surrey |
| Isg (Overseas) Limited | 5-9 Quality Court, London |
| Isg Live Limited | Cobham |
| Isher Capital J11 Ltd | SALFORD, LANCS |
| Isherwood + Ellis Llp | BELFAST |
| Isight Cumbria Limited | SOUTHPORT, MERSEYSIDE |
| Isight Limited | SOUTHPORT, MERSEYSIDE |
| Isis Aviation Services Limited | STATION ROAD, NORWICH |
| Isis Court Management Limited | ABINGDON, OXFORDSHIRE |
| Isis Planning Solutions Limited | COLLONE, ARMAGH |
| Isis Property Investments Ltd | BREDONS HARDWICK, TEWKESBURY |
| Isis Property Management And Lettings Limited | CROYDON, SURREY |
| Isis Technologies Ltd | WARMINSTER, WILTSHIRE |
| Isix Communications Llp | LONDON |
| Isjay Holdings Ltd | LONDON |
| Iskcon (Belfast) | BELFAST, ANTRIM |
| Iskcon (N.I.) Limited | DERRYLIN, CO. FERMANAGH |
| Iskcon (Scotland) Limited | LESMAHAGOW, LANARKSHIRE |
| Iskus Health Uk Ltd | Swadlincote, Derbyshire |
| Islamic Finance Council Uk Limited | Finnieston, Glasgow |
| Islamic Relief Worldwide | Digbeth, Birmingham |
| Island Ales Limited | NEWPORT, ISLE OF WIGHT |
| Island Architects Limited | LISKEARD, CORNWALL |
| Island Bathrooms Limited | BOURNEMOUTH, DORSET |
| Island Energy Solutions Ltd | DOWNPATRICK, CO. DOWN |
| Island Events (Ni) Ltd | BELFAST |
| Island Fire Protection Limited | 32 London Bridge Street, London |
| Island Forklifts Limited | DARGAN CRESCENT, BELFAST |
| Island Green Power Uk Limited | 189 MUNSTER ROAD, LONDON |
| Island Networks Limited | MANNINGTREE, ESSEX |
| Island Pacific (Uk) Limited | Saffron Walden, Essex |
| Island Printing & Finishing Equipment Ltd | BALLYCLARE |
| Island Records Limited | London |
| Island Salads Ltd | Craigavon, County Armagh |
| Island Studios London Limited | COVENT GARDEN, LONDON |
| Island Turf Crafts Limited | COALISLAND, DUNGANNON |
| Island View Apartment Management Company Limited | BALLYCLARE |
| Islandbawn Stores Limited | Muckamore, Antrim |
| Islandblue Properties Limited | KESH, CO FERMANAGH |
| Islandbridge Capital Limited | London |
| Islandbridge Properties Limited | LOUGHTON, ESSEX |
| Islander Kelp Ltd | BALLYCASTLE |
| Islander Trading Limited | Mead Way, Padiham |
| Islandmagee Energy Limited | 15-17 GLOUCESTER STREET, BELFAST |
| Islandvale Limited | ST. MARY STREET, CARDIFF |
| Islas Properties Ltd | LONDON |
| Islay Crab Exports Ltd | TARBERT, ARGYLL |
| Islay View Management Company Limited | PORTSTEWART, COUNTY LONDONDERRY |
| Isle Of Arran Distillers Limited | LOCHRANZA, ISLE OF ARRAN |
| Isle Of Harris Distillers Limited | TARBERT, ISLE OF HARRIS |
| Isle Of Man Freight Ltd | Poulton-Le-Fylde, Lancashire |
| Isle Of Man Limited | BROADWAY, LONDON |
| Isle Of Man Steam Packet Company,Limited (The) | DOUGLAS, ISLE OF MAN |
| Isle Of Wight County Club Limited | Newport, Isle Of Wight |
| Ism Fantasy Games Limited | TAUNTON, SOMERSET |
| Ism Limited | SOLIHULL, W MIDS |
| Ismail Furniture Ltd | Eastbourne |
| Ismash Uk Trading Limited | Holborn, London |
| Isme Holdings Limited | 35 NEWHALL STREET, BIRMINGHAM |
| Isms Limited | Hammersmith, London |
| Isn Distributors Ltd | LEICESTER |
| Iso Quality Services Limited | EVEROAK INDUSTRIAL ESTATE BROMYARD ROAD, WORCESTER |
| Isobar Properties Limited | BOURNEMOUTH, DORSET |
| Isoclad Limited | NORTH SHIELDS, TYNE & WEAR |
| Isofast Limited | HUNTINGDON, CAMBRIDGESHIRE |
| Isoma Limited | SWADLINCOTE, DERBYSHIRE |
| Isopartner Uk Limited | North Shields, Tyne And Wear |
| Isosceles Finance Limited | HIGH STREET, EGHAM |
| Isp Holdings (U.K.) Ltd. | NEWTON AYCLIFFE, COUNTY DURHAM |
| Ispiri Holdings Limited | Enniskillen, Co. Fermanagh |
| Ispiri Properties Limited | Enniskillen, Co. Fermanagh |
| Ispiri Wheels (Uk) Ltd | 32 East Bridge Street, Enniskillen |
| Isps Associates Limited | MUXTON, TELFORD |
| Isr Consultants Limited | ELGIN, MORAY |
| Iss Facility Services Limited | WEYBRIDGE, SURREY |
| Iss Group Holdings Limited | LONDON |
| Iss Group Services Limited | MIDDLETON, MANCHESTER |
| Iss Uk Holding Limited | WEYBRIDGE, SURREY |
| Iss Uk Limited | WEYBRIDGE, SURREY |
| Istanbul Meats Limited | CHESTER LE STREET, COUNTY DURHAM |
| Istead Business Presentations Limited | COVENTRY, WEST MIDLANDS |
| Istituto Marangoni Limited | London |
| Istorage Limited | PERIVALE, GREENFORD |
| Istorm Limited | Grays |
| Isuzu (Uk) Limited | INTERNATIONAL DRIVE, SOLIHULL |
| Isware Limited | Penkhull, Stoke-On-Trent |
| Isys Computer Services Limited | RENFREW |