Sewards End Sound & Vision

R P Gates

North Street, Cambridge, CB25 0BB 01638 742203

Sepura plc

Radio House, St Andrews Road, Cambridge, CB4 1GR 01223 876000

The Audio File

18c Chesterton Road, Cambridge, CB4 3AX 01223 368305

Fenway Television Ltd

71 The Rookery, Newmarket, CB8 8HT 01638 608111

Dixons

35 King Street, Saffron walden, CB10 1EU 01799 513464

Richer Sounds plc

56-60 Hills Road, Cambridge, CB2 1LA 03339 000053

Zimiti Ltd

Avenue Business Park, Brockley Road, Cambridge, CB23 4EY 01954 268930

Comet Group plc

393 Newmarket Road, Cambridge, CB5 8JL 08448 009595

Sevenoaks Sound & Vision Ltd

17 Burleigh Street, Cambridge, CB1 1DG 01223 304770

Cambridge Mobile Communications Ltd

Gusto Mills, Huntingdon Road, Cambridge, CB3 0DL 01223 277274