Chemical, Oil & Gas Company Index - Q
- Q E D International (U K) Ltd. - Aberdeen
- QTEK Manufacturing - Galway
- Quadralene Ltd. - Derby
- Quaker Chemical Ltd. - Stonehouse
- Quality Chemical Services - Northampton
- Quality Solutions Wessex Ltd. - Bournemouth
- Quartz Scientific Computing Ltd. - Watford
- Quat-Chem Ltd. - Oldham
- Quest Underwater Services Ltd. - Wareham