PE.fiberoptics
- Specialist offering test equipment for fibre optic networks, optical fibre manufacturers and component makers.
- http://www.pefiberoptics.com/

Optical System Design
- A small consultancy offering design, support and training in optics and lighting.
- http://www.opticaldesign.co.uk/

UQG (Optics) Ltd
- Optical engineering manufacturer supplying windows, filters and components, also has a full list of lenses, mirrors and prisms available from stock.
- http://www.uqgoptics.com/

Armstrong Optical Ltd
- Suppliers of optical metrology and laser material processing solutions.
- http://www.armstrongoptical.co.uk/

LG Optical
- Business focus is on production of optical system components, such as lenses and filters. Serves variety of specialised market requirements. Also makes and sells spectacles.
- http://www.lgoptical.co.uk

Close-Ups
- Video inspection and measuring systems. Offers an illustrated catalogue of its range, downloadable product information and contact details.
- http://www.close-ups.co.uk/

Microscopy-UK
- Seller of microscopes, accessories, specimen slides, microphotography equipment and related biological supplies.
- http://www.microscopy-uk.org.uk/

Starrett Precision Optical
- Profile projectors and accessories. Includes product catalogue with specifications, news, offers, case studies and press releases.
- http://www.starrett-precision.co.uk/

Humberside Optical Services
- Full service optical lab in North Lincolnshire.
- http://www.lensnet.co.uk

Zytronic PLC
- Manufacture and design of RFI shielded and optical filters, touch screens and complex shaped glass composites for specialised applications.
- http://www.zytronic.co.uk/