Look up in cities as diverse as Atlanta, Edinburgh and Dubai and you may spot one thing they have in common: Telensa’s smart streetlight systems. The lights, made by Sony UK Technology Centre in Bridgend, Wales, are used in more than 80 cities worldwide to save energy and cut maintenance costs. Founders Will Gibson, 56, and Tim Jackson, 58, spun out the Cambridge firm from the electronics design consultancy Plextek in 2010. Its two overseas offices helped international sales hit £10.3m last year and it recently opened a third base in Melbourne.

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Company details
Year2018
Rank4
CompanyTelensa
ActivityWireless control systems developer
LocationCambridge
2 yr av intl sales growth % pa189.70%
International sales £000s10,302
Total sales £000s22,836
Staff63
Founded2005
Websitewww.telensa.com

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* Supplied by company † Annualised figure