Company Index
- H M Foam Distributors Ltd. - Calne
- H and M Display Ltd - York
- H and S Polythene Ltd - Enfield
- H L Rim - Shipley
- H M T Plastics Ltd. - Hove
- H N Advertising Studios Ltd. - Leicester
- H P M Ltd. - Nottingham
- H W Rowe - Preston
- H Wicks (Lindal) Ltd - Barrow in Furness
- H.D.S. Design Consultants Ltd - Rochford
- Hales Tool and Die Ltd - Maldon
- Hallam Plastics Ltd. - Nottingham
- Hallam Polymer Engineering Ltd - Dronfield
- Hallite Seals International Ltd - Hampton
- Hallplas - Leicester
- Halyard (M and I) Ltd - Cerambond Division - Waterlooville
- Hammerton & Son - Lincoln
- Hampton Colours Ltd. - Stroud
- Handlestore com - Walsall
- Hangers Nest Ltd - Woodford Green
- Hanmere Polythene Ltd. - Letchworth
- Hanson Thorpe Precision Toolmakers Ltd. - Manchester
- Happich Profiles Ltd. - Birmingham
- Happich Vehicle & Industrial Components Ltd. - Birmingham
- Harboro Rubber Co Ltd - Market Harborough
- Hardie Polymers Ltd - Glasgow
- Hardigg UK Ltd - Ashford
- Hardy and Hanson Ltd - Dewsbury
- Harltex Ltd. - Northampton
- Harold Moore Ltd. - Sheffield
- Harrison Verity Products Ltd. - Blackburn
- Hart Coating Technology - Brierley Hill
- Harvest Polymers Ltd. - Farnham
- Harveys Ltd - Edinburgh
- Harviglass GRP Ltd - Hyde
- Harwood Tracy - Barnsley
- Hasco-Internorm Ltd - Daventry
- Haven Windows & Plastics Ltd. - Milford Haven
- Haverhill Mould and Tooling - Haverhill
- Hawkes Technical Ltd - Wellingborough
- Hayes Engineering Services Ltd. - Cardiff
- Haywood Products Ltd - Stafford
- Haywood Roto Moulding Ltd - Rochdale
- Hazelhurst Supplies Ltd. - Darwen
- HCL Fasteners Ltd - Radstock
- Heater Bands Ltd - Birmingham
- Heathcote Industrial Plastics Ltd - Newcastle under Lyme
- Heaven Dowsett and Co Ltd - Birmingham
- Helix Ltd. - Stourbridge
- Hellermann Ireland - Dublin
- Hellyar Plastics - Whitstable
- Henderson Plastics Ltd - Dereham
- Henley Precision Mouldings Ltd - High Wycombe
- Henri Picard and Frere Ltd - Dorking
- Henry Lenox Industrial Ltd. - Hampton
- Hepworth Composites - Burnley
- Herbold Recycling Ltd - Frodsham
- Heritage Dove Plastics - Nottingham
- Hermetic Rubber Co Ltd - Edgbaston
- Hertfordshire Timber Supplies Ltd - Letchworth
- Hesketh's Plastics - Liverpool
- Hexcel Composites Ltd. - Cambridge
- Hexham Developments Ltd. - Hexham
- HH Plastics Ltd - Walsall
- Hi Class Machinery Ltd - Wellingborough
- Hi Profile Extrusions Ltd. - Droitwich
- Hi Tec Window Films - Wolverhampton
- Hi-Spec Plastics - South Shields
- Hi-Tech Coatings Ltd - Aylesbury
- Hi-Tech Design Ltd - Waterlooville
- Hi-Tech Mouldings Ltd - Waterlooville
- Hi-Tech Plastics Ltd - Blackburn
- Hi-Tech Polymer Proofings Ltd. - Warrington
- High Profile Plastic Products Ltd. - Banbury
- High Street Designs - Rushden
- High Tech Tubes Ltd - Byfleet
- Highbury Hose Ltd - Evesham
- Highwood Consultants Ltd. - Ryde
- Hilbar Plastics Ltd. - Manchester
- Hillside Plastics Ltd - Durham
- Hilton Docker Mouldings Ltd - Rochdale
- Hilton Engineering - Havant
- Hispack Ltd - Billericay
- History Craft Ltd - Cirencester
- Hiva Products - Leicester
- HL Plastic Ltd - Derby
- Hofbauer (UK) Ltd - Gloucester
- Holfeld Plastics - Burton on Trent
- Holland Colours U.K. Ltd - Gillingham
- Holland Plastics (UK) Ltd - Clacton on Sea
- Holloid Plastics Ltd - Basingstoke
- Holloway Plastics Ltd. - Walsall
- Holmes & Langston Trade Frames - Belfast
- Holmes Hose Ltd. - Sandbach
- Holscot Fluoroplastics - Grantham
- Holt and Macintosh (Waste Plastics) Ltd - Blackburn
- Homelux Nenplas Ltd. - Ashbourne
- Homestyle Direct Ltd. - Romford
- Honeycrown Ltd. - Wrexham
- Hopehurst Ltd - London
- Hornby Hobbies Ltd. - Margate
- Horne Engineering Services - Walsall
- Hose & Tubular Services - Luton
- Hose Component Supplies - Sheffield
- Hose-Tech Ltd - Wigan
- Hoselines & Industrial Supplies (North West) Ltd. - Salford
- Hotspot Tooling Ltd - Leicester
- House of Anderson (1905) Ltd. - Morecambe
- Howard Plastics Ltd - Tewkesbury
- Hoylake Plastics - Wirral
- HQ Lacquer Ltd - Chessington
- Hubron (International) Ltd - Manchester
- Huhtamaki Ltd - Gosport
- Hunt Bros (Smockington) Ltd. - Hinckley
- Hunter Plastics Ltd. - London
- Huntsman Polyurethanes (Uk) Ltd. - Billingham
- Hybrid Technology Services Ltd - Yate
- Hydralon Ltd. - Southampton
- Hydraquip - Gatwick Hose Service Ltd trading as - Crawley
- Hydrasun Ltd - Aberdeen
- Hydrasun Ltd - Glasgow
- Hymid Multi-Shot Ltd. - Brixham
- Hyperlast Ltd. - High Peak
