| Aero Research Limited |
| Albright and Wilson |
| Anglo-Saxon Petroleum |
| AZ Electronic Materials |
| Billingham Manufacturing Plant |
| BOC (company) |
| BP Chemicals |
| British Celanese |
| British Cellophane |
| British Compressed Gases Association |
| British Dyestuffs Corporation |
| British Salt |
| Bryant & May |
| Courtaulds |
| Croda International |
| Dussek Campbell Ltd |
| Dylon |
| Fisons |
| Hazlehurst & Sons |
| Hickson & Welch |
| Holmes’ Marine Life Protection Association |
| Ineos |
| Innovia Films |
| Inscentinel |
| Johnson Matthey |
| Laporte plc |
| Levinstein Ltd |
| LGC Ltd |
| Loch Lomond Radium Works |
| Losh, Wilson and Bell |
| May & Baker |
| Newton, Chambers & Co. |
| Nobel Enterprises |
| Prentice Brothers Limited |
| Shell Chemicals |
| Shell plc |
| Synthomer |
| Tata Chemicals Europe |
| Thomas Swan |
| Titanine Ltd. |
| UK Cleaning Products Industry Association |
| United Alkali Company |