| UK Company Name | Partial Address |
| I L Holdings Limited | 1 WESTFIELD AVENUE, LONDON |
| I Levitan Services Limited | 1 WESTFIELD AVENUE, LONDON |
| I-Logic Holdings Limited | 10 Queen Street Place, London |
| I-Luminate Limited | COLNEY HEATH, ST. ALBANS |
| I.L.F. Ltd | HEDNESFORD, CANNOCK |
| Il Bianco Limited | 2 BISCAYNE AVENUE, LONDON |
| Il Molino Limited | LONDON |
| Il Rosso Limited | MANSFIELD, NOTTS |
| Il-Uk Fresh Produce Limited | HARROW, MIDDLESEX |
| Ilead Mobile Limited | BARNSTAPLE, DEVON |
| Ilearn2 Limited | REDDITCH |
| Ilene Limited | Newry, Down |
| Ilex Car Sales Ltd | DUNGIVEN, DERRY |
| Ilexa Onboard Diagnostics Limited | TRURO, CORNWALL |
| Ilfa | HENDON, LONDON |
| Ilfc Uk Limited | ONE ANGEL COURT, LONDON |
| Ilford Electrical Ltd | 217 MARSH WALL, LONDON |
| Ili (Solar) Limited | HAMILTON, LANARKSHIRE |
| Ili Limited | BRENTWOOD, ESSEX |
| Ilion Ventures Ltd | LONDON |
| Iliv Apartments (Uk) Limited | BELFAST |
| Ilkeston Ply & Diy Ltd | Ilkeston, Derbyshire |
| Ilkley Autocare Limited | ILKLEY, WEST YORKSHIRE |
| Illamasqua Limited | RINGWAY, ALTRINCHAM |
| Ille Paper Service Limited | CRAIGAVON, CO ARMAGH |
| Ille Paper Services Uk Ltd | SUTTON-IN-ASHFIELD, NOTTINGHAMSHIRE |
| Illiad International Llp | EDINBURGH, LOTHIANS |
| Illingworth Ingham (Joinery And Timber) Limited | MANCHESTER, LANCASHIRE |
| Illingworth Ingham (Manchester) Limited | MANCHESTER, LANCASHIRE |
| Illingworth Ingham (Timber Supplies) Limited | MANCHESTER, LANCASHIRE |
| Illumis Lights Limited | NORWICH, NORFOLK |
| Illustration Limited | NEWTON ABBOT, DEVON |
| Illustries Ltd | NEWHAM ON SEVERN, GLOUCESTERSHIRE |
| Ilpra Systems U.K. Limited | High Wycombe, Buckinghamshire |
| Ilyinski Holdings Limited | NEWRY, CO. DOWN |
| Ilyinski Pain Clinic | NEWRY, CO. DOWN |
| Ilynx Limited | 10 COLLEGE ROAD, HARROW |