Company Index - Q
- Q E D Industrial Controls Ltd. - Leatherhead
- Q E F Global (U K) Ltd. - Antrim
- Q Electronics Ltd - Leeds
- QCE (Quality Components Europe) - Bedford
- Qed Audio Products Ltd - Woking
- Qed Design & Manufacture Ltd. - Maidstone
- QES Ltd - Stevenage
- Qhi Holdings Ltd. - Harpenden
- Qinetiq Ltd. - Farnborough
- Qing Cables Ltd - Cheltenham
- QMS Software Ltd - London
- QNX Software Systems Ltd - Cambridge
- QP Semiconductor Inc - Dunstable
- Qsi Group Ltd. - Carlisle
- Qtronix - Nottingham
- Quad Electroacoustics Ltd. - Huntingdon
- Quadra Solutions Ltd. - Accrington
- Quadrant Connections Ltd. - Radlett
- Quadrant Systems Ltd. - Burgess Hill
- Qualitest Equipment Sales - Leeds
- Qualitetch Components Ltd. - March
- Quality Blasting Ltd - Stourbridge
- Quality Electrical Supplies & Technology Ltd. - Burnley
- Quality Electronic Designs Ltd - Southampton
- Quality Electronic Repairs - Workington
- Quality Plated Plastics - Birmingham
- Quality Precision Electronics Ltd. - Glenrothes
- Quansys Ltd - Maidenhead
- Quantek Ltd - Leighton Buzzard
- Quantel Holdings Ltd. - Newbury
- Quantitech Ltd. - Milton Keynes
- Quantran Systems Ltd. - Watford
- Quantum Computer Aided Design Ltd. - Port Talbot
- Quantum Controls Ltd. - Prudhoe
- Quantum Storage U K Ltd. - Bracknell
- Quartslab Marketing Ltd - Erith
- QUARTZ TSL - Leicester
- Quartzlock (Uk) Ltd. - Totnes
- Quassia (Electronics) Ltd - Saffron Walden
- Quick Circuits Ltd - Reading
- Quick Controls Ltd. - Rossendale
- QuickLabel Systems - Slough
- Quinsee Swan Ltd - Dunstable
- Quinton Crane Electronics Ltd. - Derby
- Quiss Technology Plc - Tamworth
- Quotesound Ltd - Wickford
- Quotient Bioresearch - Newmarket