| Company | Address | Telephone |
| Alfa Aesar Johnson Matthey | Orchard Road, Royston, Herts | 01763 253674 |
| Ellis & Everard | Yate, Bristol, Avon | 01454 319056 |
| Cardiff, Wales | 01222 864435 | |
| Coventry, West Midlands | 02476 641304 | |
| Glasgow, Scotland | 01236 732711 | |
| Exeter, Devon | 01392 444593 | |
| Teeside | 01642 227388 | |
| Greenwich, London | 0208 858 5806 | |
| Wellingborough, Northants | 01933 229640 | |
| Widnes,Cheshire | 0151 4207616 |