HARTING Limited  (Northampton)
	Honeywell Process Solutions  (Diegem, Belgium)
	H B Tanks   (Bristol)
	H Guntner (UK) Limited  (Sandhurst)
	H P C Engineering PLC   (Burgess Hill)
	H Warner & Son  (Ipswich)
	H. Cooper & Sons (Bristol) Ltd   (Bristol)
	H. Gregg & Son   (Telford)
	H.S. Pipequipment Ltd (HSP)  (Newbury)
	HACH LANGE LTD  (Manchester)
	Haden Freeman Ltd (HFL)  (Denton)
	Hale Hamilton Valves Limited  (Uxbridge)
	Halifax Fan Ltd  (Halifax)
	HAM-LET Valves & Fittings  (Wakefield)
	Hammond Power Solutions (HPS)  (Baraboo, USA)
	Hamo UK Ltd  (Hemel Hempstead)
	Hampshire Hose Services Ltd  (Southampton)
	Hamworthy Compressor Systems (Gardner Denver)  (Gloucester)
	HANNOVER MESSE  (Hannover, Germany)
	Hans Guntner Dormagen  (Dormagen, Germany)
	Harris Pye Group   (Vale of Glamorgan)
	Hartness International, Inc.
	Haskel Europe Ltd (Haskel Energy Systems)  (Sunderland)
	Hawco Ltd  (Nr Goddalming)
	Haycock and Hague (Pipework) Ltd  (Selby)
	Haynes International Ltd  (Manchester)
	Hayward Tyler Ltd  (Luton)
	HC Slingsby plc  (Shipley)
	Health and Safety Executive (HSE)  (London)
	Heason Technology Ltd  (Slinfold)
	Heat Exchangers South West  (Bodmin)
	Heat Transfer Research, Inc.  (College Station, USA)
	Heat Transfer Systems Limited  (High Peak)
	Heatex Limited  (Thetford)
	Heaton Valves  (Bradford)
	Heaton Valves Ltd  (Bradford)
	Heatric Ltd  (Poole)
	Hedinair Ovens Ltd  (Wickford)
	Heinkel Filtration UK  (Stockport)
	Helix Conveyors Ltd  (Laindon)
	Henkel Loctite Adhesive UK Ltd  (Hemel Hempstead)
	Henkel Loctite Adhesive UK Ltd  (Hemel Hempstead)
	Henry Gallacher Ltd  (Stockton-on-Tees)
	Hepworth Air Filtration  (Kendal, USA Sales Office - 2774 East Main Street, Suite 11)
	Hidrostal Ltd  (Newbury)
	Hi-Line Industries Ltd  (Burton on Trent)
	Hima-Sella Ltd  (Stockport)
	HMD Kontro Sealless Pumps Ltd  (Eastbourne)
	Hoffman Air & Filtration Systems Ltd  (Ipswich)
	Hoke Inc. (CIRCOR Instrumentation Ltd)   (Uxbridge)