CSEA Ltd   (Tyne & Wear)
	CSI Europe Inc  (Farnborough)
	CT Technical Products  (Sheffield)
	C-Tech Electronics Ltd  (Worthing)
	Cube Technology Ltd  (Horsham)
	Cubic Modular Systems (UK) Ltd  (Salford)
	Cumberland Scientific Instruments
	Curtis Instruments (U K) Ltd   (Northampton)
	Custom Brakes & Hydraulics Ltd
	Custom Cameras Ltd  (Wells)
	Custom Control Sensors International   (Swindon)
	Custom Control Systems Ltd   (Leeds)
	Custom Keypads  (Banbury)
	Custom Micro Products Ltd   (Poole)
	Custom Sensors & Technologies (BEI Sensors)  (Goleta, USA)
	Custom Technology Ltd   (Lewes)
	Cybor Corporation  (San Jose, USA)
	Cyclonex Ltd   (Lowestoft)
	Cyfas Systems Ltd (Restbury International)  (Shefford)
	Cygnus Instruments Limited  (Dorchester)
	Cynergy3 Components Ltd  (Wimborne)
	D B Fluid Control Ltd  (Glasgow)
	D F M/Lynch  (Bangor)
	D G Controls Ltd  (Swadlincote)
	D S P Electronics  (Mold)
	D. Wheatland Engineering  (Redhill)
	D.A. French Engineering  (Radstock)
	D.C. & R. Ault  (Greenford)
	D.M.G. Control Systems Ltd  (Washington)
	D.P. Fabrications Ltd  (Kempston)
	D.S.K. Security Ltd  (Hockley)
	Daco Scientific Ltd  (Aldermaston)
	Dacon Fabrications Ltd  (Gateshead)
	Dairy Pipe Lines  (Essex)
	Dale Engineering Co.  (Chard)
	Dalkia Energy and Technical Services Ltd  (Portsmouth)
	Dalkia Utilities Services P.L.C.  (Northolt)
	Dalling Automation  (Huntingdon)
	Dane Engineering
	Danebridge Engineering Co. Ltd
	Danfoss Ltd  (Denham)
	Daniel  (Stirling, Scotland)
	Daniels Fans Ltd   (Llanelli)
	Danielson Ltd  (Aylesbury)
	Danmark Impeller Engineers Ltd   (West Bromwich)
	Dantec Electronics Ltd  (Bristol)
	Danum Pneumatics  (Doncaster)
	Dassault Systemes   (Paris, France)
	Data Display (UK) Ltd  (Waterlooville)
	Data Entry Products Ltd  (Newburn)