Air Industrial Development  (West Midlands)
	Air Power & Hydraulics Ltd  (Glasgow)
	Airpax Ltd  (Surrey)
	AJ Transmissions  (Wilmslow)
	AJM Products Ltd  (Sevenoaks)
	Alanco-Alamatic Ltd
	Albion Automotive-Farrington Comp;
	Alexander Marcar & Co Ltd  (Middlesex)
	All Drives & Controls Ltd  (Hednesford)
	All Hydraulics Ltd  (Middlesex)
	Alldales Drive Systems Ltd  (West Sussex)
	Allegro Microsystems Europe Ltd  (Chertsey)
	Allen Bradley.Sprecher+Schuh  (Buckinghamshire)
	Allen Gears (formerly NEI Allen)  (Pershore)
	Allenwest Brighton Limited  (Peacehaven)
	Allenwest Starkstrom  (Accrington)
	Allspeeds Ltd  (Lancashire)
	Alnat Electrical (Components) Ltd  (Ayrshire)
	Alpha Gearheads Ltd  (Stoke-on-Trent)
	Alpha Laval Automation Ltd  (Cheshire)
	Alstom Drives & Controls Ltd   (Stoke-on-Trent)
	Altra Industrial Motion  (Twickenham)
	Alwayse Engineering Ltd  (Birmingham)
	Alzanti Ltd  (Ash Vale, United Kingdom)
	Amir Power Transmission Ltd
	AMK Drives & Controls Ltd  (Northampton)
	Ammeraal Beltech Holding BV  (Heerhugowaard, The Netherlands)
	Amtech (Automated Micro Technology)  (Tyne & Wear)
	Animatics Corporation  (Santa Clara, USA)
	AOIP Instrumentation
	APC
	Applied Hydro Mechanics Ltd  (Hampshire)
	Arcom Control Systems Ltd  (Cambridge)
	Areva T&D Stafford (GEC Alsthom Low Voltage Equip)  (Stafford)
	AS Belting Products Ltd  (South Glamorgan)
	ASB Servosystems  (Kent)
	Ash Hydraulics Ltd
	Ashe Controls Ltd
	Ashtronics Drives and Controls Ltd  (Henlow)
	Ashurst Logistic Electronics Ltd  (Dorset)
	ASM Ltd
	Associated Control Systems
	Astrosyn International Technology Ltd  (Chatham)
	Atlas Automation  (Staffordshire)
	Autarky Automation Ltd  (East Grinstead)
	AutoLogic Systems Ltd  (Thame)
	Automation (International) Ltd
	Automation Projects Ltd  (Staffordshire)
	Automotion International Ltd  (Oldham)
	Autotech Controls Ltd   (Luton)