Plastics & Rubber Company Index - H
- H M Foam Distributors Ltd. - Calne
- H and M Display Ltd - York
- H and S Polythene Ltd - Enfield
- H L Plastics Ltd. - Ripley
- H M T Plastics Ltd. - Hove
- H N Advertising Studios Ltd. - Leicester
- H P M Ltd. - Nottingham
- H Wicks (Lindal) Ltd - Barrow in Furness
- H.D.S. Design Consultants Ltd - Rochford
- Haffenden Moulding Co - Sandwich
- 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
- Hancock Plastics Ltd - Ashton under Lyne
- Handlestore com - Walsall
- Hanmere Polythene Ltd. - Letchworth
- Hanson Thorpe Precision Toolmakers Ltd. - Manchester
- 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
- Hasco-Internorm Ltd. - Daventry
- Haven Windows & Plastics Ltd. - Milford Haven
- Haverhill Mould & Tooling - Haverhill
- Hawkes Technical Ltd - Wellingborough
- Hayden Plastics Ltd - Maidenhead
- Hayes Engineering Services Ltd. - Cardiff
- Haywood Roto Moulding Ltd. - Rochdale
- Hazelhurst Supplies Ltd. - Darwen
- HB-Therm - Stone
- HCL - Clamping Solutions - Bath
- Heathcote Industrial Plastics Ltd - Newcastle under Lyme
- Heaven Dowsett and Co Ltd - Birmingham
- Helix Ltd. - Stourbridge
- Hellermann Ireland - Dublin
- Henderson Plastics Ltd. - Dereham
- Hendricks Lintels - Westbury
- Henri Picard and Frere Ltd - Dorking
- Henry Lenox Industrial Ltd. - Hampton
- Hepworth Building Products Ltd. - Doncaster
- Herbert W Rowe - Preston
- Herbold Recycling Ltd - Frodsham
- Heritage Dove Plastics - Nottingham
- Hertfordshire Timber Supplies Ltd. - Letchworth
- Hesketh's Plastics - Liverpool
- Hexcel - Cambridge
- Hexham Developments Ltd. - Hexham
- Hi Tec Window Films - Wolverhampton
- Hi-Spec Plastics - South Shields
- Hi-Tech Coatings Ltd - Aylesbury
- Hi-Tech Design - Waterlooville
- Hi-Tech Mouldings Ltd - Waterlooville
- Hi-Tech Plastics Ltd - Blackburn
- High Profile Plastic Products Ltd - Banbury
- High Street Designs - Rushden
- High Tech Tubes Ltd - Byfleet
- Highwood Consultants Ltd. - Ryde
- Hill's Rubber Co Ltd - Reading
- Hilton Docker Mouldings Ltd - Rochdale
- Hispack Ltd - Billericay
- History Craft Ltd - Cirencester
- Hiva Products - Leicester
- Hmh Fasteners Ltd. - Gloucester
- Holland Colours U.K. Ltd - Gillingham
- Holloid Plastics Ltd - Basingstoke
- Holloway Plastics Ltd. - Walsall
- Holmes & Langston Trade Frames - Belfast
- Holmes Hose Ltd - Sandbach
- Holscot Fluoroplastics Ltd. - Grantham
- Holts Developments Ltd. - Blackburn
- Homelux Nenplas Ltd. - Ashbourne
- Homestyle Direct Ltd. - Romford
- Honeycrown Ltd - Wrexham
- Hornby Hobbies Ltd. - Margate
- Horne Engineering Services - Walsall
- Hose & Tubular Services - Luton
- Hose Component Supplies - Sheffield
- Hose-Tech Ltd. - Wigan
- Hotspot Tooling Ltd. - Leicester
- HQ Lacquer Ltd - Chessington
- Hubron (International) Ltd. - Manchester
- Humberside Moulding Ltd - Barton upon Humber
- Hunt Bros (Smockington) Ltd. - Hinckley
- Hunter Plastics Ltd. - London
- Hybrid Technology Services Ltd - Yate
- Hydralon Ltd. - Southampton
- Hydrasun Ltd. - Aberdeen
- Hydrasun Ltd. - Glasgow
- Hymid Multi-Shot Ltd - Torquay