- Citifluor Ltd
 - Hackney - Developings antifadent solutions for use with the technique of immunofluorescence. Also offers consulting to the radiation curing industry. - Harriman Chemsult Limited
- Islington - Supplier of market information and consultancy services to the caustic soda, chlorine, PVC, salt, bleaching chemicals, and related industries worldwide.
- Honeywill & Stein Ltd
- Sutton - Chemical distribution and marketing company. Serves a range of markets, including the pharmaceutical and food industries.
- Elementis plc@
- City of London
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