Ceramic components, hot pressed, for engineering applications in United Kingdom
- Addmore Engineering Ltd
- Aegis Advanced Materials Ltd
- Precision Ceramics (a division of McGeoch - Technology Ltd)
- Ceramtec UK Ltd
- Dynamic Ceramic Ltd
- Luke E C R Ltd
- Coorstek
- Technical Glass Company
- Paragon Precision Products
- Fairey Industrial Ceramics
- Ceramic Substrates & Components Ltd
- A G Rutter Ltd
- Ross Ceramics Ltd

Mineral products, glass and ceramics