- Island Services Ltd - Unit 7 Mile Town Industrial Park, Sheerness, Kent, ME12 1HB
- Island Workshop Supplies - Kemphill View, Church Road, Ryde, Isle of Wight, PO33 4DQ
- Islay Woollen Mill - Lint Mill, Isle of Islay, Scottish Islands, PA44 7PG
- Isle of Arran Distillers - Unit 4-5 Touch Business Centre, Stirling, Stirlingshire, FK8 3AQ
- Isle of Jura Distillery - Craighouse, Isle of Jura, Scottish Islands, PA60 7XT
- Islebest - 187 Camford Way, Luton, Bedfordshire, LU3 3AN
- Islwyn Evans - Units 1 & 5 Maesquarre Road, Wales, SA18 2LF
- Islwyn Pugh Construction Ltd - Unit 21 Pant Industrial Estate, Merthyr Tydfil, Mid-Glamorgan, CF48 2SR
- ISO Cleanroom - Block 1- F33, Alderley Park, Congleton Road, Nether Alderley, SK10 4TG, Macclesfield, Cheshire, SK10 4TG
- ISO IMS Solutions Ltd - 25 Farm Close, Brighton, East Sussex, BN41 2HP
- ISO Management Consultant Ltd - 6 Heath Close, Billericay, CM12 9NW
- Isocom Components - Unit 25b Prospect Way, Hartlepool, Cleveland, TS25 1UD
- Isocon Design - Unit 8 D2, Meadow Works, Herts, EN5 1AU
- IsoCool Ltd - Great Notley - 460 Avenue West, Braintree, Essex, CM77 7AA
- Isocrete Commercial Flooring - The Flooring Technology Centre, Moston, Cheshire, CW11 3QF
Companies 1741 to 1755 | Page 117 of 126