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 Baker Ltd  (Stoke-on-Trent, UK)
	Ham-Let UK  (Haywards Heath)
	Hammond Power Solutions (HPS)  (Baraboo, USA)
	Hampshire Hose Services Ltd  (Southampton)
	Hamworthy Compressor Systems (Gardner Denver)  (Gloucester)
	HANNOVER MESSE  (Hannover, Germany)
	Hanovia Ltd  (Slough, UK)
	Hans Guntner Dormagen  (Dormagen, Germany)
	Harris Pye Group   (Vale of Glamorgan)
	Hartness International, Inc.
	Harvard Engineering Ltd  (Wakefield)
	Harwell Campus Management  (Didcot)
	Haskel Europe Ltd (Haskel Energy Systems)  (Sunderland)
	Hawco Ltd  (Nr Goddalming)
	Haycock and Hague (Pipework) Ltd  (Selby)
	Haydale Ltd  (Ammanford)
	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)
	Heaton Valves  (Bradford)
	Heaton Valves Ltd  (Bradford)
	Heatric Ltd  (Poole)
	Hedinair Ovens Ltd  (Wickford)
	Heinkel Filtration UK  (Stockport)
	Heliex Power Ltd  (East Kilbride)
	Helix Conveyors Ltd  (Laindon)
	Henkel Loctite Adhesive UK Ltd  (Hemel Hempstead)
	Henkel Loctite Adhesive UK Ltd  (Hemel Hempstead)
	Henkel Ltd
	Henry Gallacher Ltd  (Stockton-on-Tees)
	Hepworth Air Filtration  (Kendal, USA Sales Office - 2774 East Main Street, Suite 11)
	Hidrostal Ltd  (Newbury)