Large companies and organisations

British Telecommunications plc - BT, O2, Sprint, Royal Mail, British Paper Board, Sea France, National Grid, DHL, Suffolk County Council and Camden Local Authority.

Medium to small size companies

Frankham Consultancy Group, Quanticate, Midwich, Honeywell, Green Telecom, .Dolphin Communication Solutions Ltd, Qhi Rail, Matrix Polymers, Iris Guard, Dowding Precision Limited.

Overseas companies

A-Team Technology and Primatronics in Hong Kong.