- Wylie Shanks Architects - 17 Royal Terrace, Glasgow, Lanarkshire, G3 7NY
- Wymac Development - 1 Penllwyngwent Industrial Estate, Saville Road, Bridgend, Mid-Glamorgan, CF32 7AX
- Wyman Bain - Whitefriars, Bristol, Somerset, BS1 2NT
- Wyman Gordon Ltd - Spa Road, Lincoln, Lincolnshire, LN2 5TB
- Wyman-gordon Ltd - Wyman Gordon Complex, Houstoun Road, Livingston, West Lothian, EH54 5BZ
- Wymark Ltd - Runnings Road, Cheltenham, Gloucestershire, GL51 9NQ
- Wynn Marine Ltd - Redditch - Unit 4, Redditch, Worcestershire, B98 9HL
- Wynnstay - 1 Maesyllan, Llanidloes, Powys, SY18 6DF
- Wynnstay Ltd - Grove Farm Buildings, Southam, Warwickshire, CV47 2BB
- Wyre Forest Recycling Services - Sandy Lane Industrial Estate, Stourport-on-Severn, Worcestershire, DY13 9QB
- Wyre Repairs Ltd - Unit J, Maidenhead, Berkshire, SL6 4EJ
- Wyre Wrought Iron - Unit A The B R Building, Fleetwood, Lancashire, FY7 6NS
- Wysetech Ltd - 42 The Arches, Berkshire, SL4 1QZ
- Wyvern Business Systems Ltd - Wyvern House, Hereford, Herefordshire, HR2 6JJ
- Wyvern Cargo Ltd - Southern Distribution Centre, Broom Road, Poole, Dorset, BH12 4NR
Companies 1996 to 2010 | Page 134 of 135