Flexibox (part of John Crane)  (Manchester)
	Flo-Tork Inc  (Chichester)
	Flowserve (Durametallic)  (Salford)
	Fluid Power Centre Ltd  (Deeside)
	Fluid Power Components  (Havant)
	Fluid Power International Ltd  (Worcestershire)
	Fluidair Compressors Ltd  (Manchester)
	Fogg & Young Engineering Ltd  (Gravesend)
	Folliard Hydraulics Ltd  (Wymondham)
	Forest Hydraulics Ltd  (London)
	Forkhardt England Ltd  (Bristol)
	Frazerburgh Hydraulics Ltd  (Fraserburgh)
	Freudenberg Technical Products Ltd  (Lutterworth)
	FTL Co Ltd  (Leeds)
	Gardner-Denver Machinery  (Beaconsfield)
	Garfield Hydrol Ltd  (Peterborough)
	Garlock (GB) Ltd  (Elland)
	Garphyttan Ltd  (Newton Aycliffe)
	Gast Group Limited  (Redditch)
	Gates Hydraulics Ltd  (Huntingdon)
	GB Lubricants Ltd  (Gateshead)
	GDM (Heat Transfer) Ltd  (Rugeley)
	Gentech International Ltd  (Girvan)
	Gilson Engineering (Newbury) Ltd  (Newbury)
	Glenthorpe Engineering Co Ltd  (Teddington)
	Gotec Pumps Ltd  (Wallingford)
	Greene Tweed & Co Ltd  (Nottingham)
	Griflex Limited  (Birmingham)
	Grove Ready Ltd  (Penryn)
	Gusher Pump Inc.
	Guyson International Ltd  (Leeds)
	H & H Bishop Ltd  (Doncaster)
	H + L Hydraulic   (Redditch)
	H Kuhnke Ltd  (High Wycombe)
	H.C.M. Ltd  (Gloucester)
	Hagglunds Drives Ltd  (West Yorkshire)
	Hallite Seals International Ltd  (Hampton)
	Hamer Pneumatics Ltd  (Bridgend)
	Hamworthy Compressor Systems (Gardner Denver)  (Gloucester)
	Harrier Fluid Power Ltd  (Ludlow)
	Harrison Pneumatics  (Farnham)
	Haskel Europe Ltd (Haskel Energy Systems)  (Sunderland)
	Heavyparts Hydraulics Ltd  (Rochdale)
	Helipebs Controls Ltd  (Gloucester)
	Hendry Hydraulics Ltd  (Elgin)
	Henkel Loctite Adhesive UK Ltd  (Hemel Hempstead)
	Hi-Force Hydraulics Ltd  (Daventry)
	Hinchcliffe Hydraulics  (Scunthorpe)
	Hi-Press Hydraulics  (Stockport)
	Holmbury Ltd  (Tonbridge)