This business designs products – from radar technology for South Korea’s demilitarised zone to car-tracking devices – for clients such as Sony. Under co-founder and chairman Colin Smithers, 57, exports grew to £7.9m last year. In January its subsidiary Telensa secured £13m equity and debt funding from the Environmental Technologies Fund and Silicon Valley Bank.

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Company details
Year2016
Rank72
CompanyPlextek
ActivityElectronics design consultancy
LocationCambridgeshire
2 yr av intl sales growth % pa45.11
International sales £000s7,911
Total sales £000s21,679
Staff123
Founded1989
Websitewww.plextek.com

If applicable:

* Supplied by company † Annualised figure