International Track 200

Launched in 2001 by co-founders Paul Cunningham, 58, and Dan Freeman, 38, this firm provides tools for advertisers to build and place ads on the internet. Its clients include brands such as Gillette and Netflix. Acquiring US analytics company Encore in 2015 helped boost overseas sales to £33.7m in 2016. Led by chief executive John Nardone, 52, Flashtalking is majority-owned by US private-equity firm TA Associates.

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Company details
ActivityAdvertising technology developer
LocationCentral London
2-yr av intl sales growth pa42.52%
International sales £000s*33,674
Total sales £000s*39,893

If applicable:

* Supplied by company † Annualised figure