Updated: Thursday the 24th of May, 2012 Monitoring Systems: Traffic
Duddon Electronics Ltd - Coniston
Integrated Design Techniques Ltd - Gateshead
Northern Link Traffic Data Consultancy Ltd - Carlisle
Planet 4 Networks - ANPR Integrators - Crawley
Sky High plc - Tadcaster
TDC Systems Ltd - Weston-Super-Mare
Tunnel Sensors Ltd - Brackley