Mactenn Systems Ltd  (Sudbury)
	Moore International Ltd  (Poole)
	M & D Engineering (Midlands) Ltd  (Willenhall)
	M.I.M. Co Ltd  (Dukinfield)
	Macromin Hydraulics  (Sheffield)
	MacScott Bond Ltd  (Coventry)
	Mactaggart Scott & Co Ltd  (Loanhead)
	Magpie Engineering & Bearings Ltd  (Walsall)
	Manflex Ltd  (Warrington)
	Manuli Hydraulics Ltd  (Manchester)
	Marsh Bellofram Group of Companies  (Newell, USA)
	Marshal Brewson  (Grimsby)
	Matara UK Ltd  (Cheltenham)
	Mattei Compressors Ltd  (Shipston-on-Stour)
	Maziak Compressor Services Ltd  (Rushden)
	Mead Engineering Services Ltd  (Lancing)
	MET Technology Ltd (formerly Mark Compressors Ltd)  (Stockport)
	Metal Work UK Ltd  (Milton Keynes)
	Metallisation  (Dudley)
	Metallized Carbon Corporation (Metcar)  (Ossining, USA)
	Metallurgical & Inspecftion Services (Rugby) Ltd  (Rugby)
	Mico (UK) Ltd  (Kershaw)
	Micro Mesh Engineering Ltd  (Nottingham)
	Micro Pneumatics  (Leicester)
	Microfiltrex (a div of Porvair Filtration Gp)   (Fareham)
	Micron Group  (Bradford)
	Midland Air Power Ltd  (Melton Mowbray)
	Mika Hydraulic Systems  (Coventry)
	Mocap Ltd  (Telford)
	Modular Hydraulic Systems Ltd  (Aldershot)
	Moog Controls Ltd  (Tewkesbury)
	Morrisons Hydraulics  (Liverpool)
	Moss Plastic Parts Ltd  (Kidlington)
	Motivair Compressors Ltd  (Burntwood)
	Motor Transmission & Pump  (Mitcheldean)
	MP Filtri UK Ltd  (Cheltenham)
	Multiquip Engineering Ltd  (Northallerton)
	Murphy Engineers Ltd  (IrL-Dublin 12, Ireland)
	Musketeer Engineering Ltd  (Co Antrim)
	Mykro Hydraulics Distributors Ltd  (Huddersfield)