Physics graduate Greg Isbister, 38, set up this data and advertising technology firm, which analyses more than 500m pieces of information a day, in 2004. Its location and demographic statistics are used by agencies and brands including Airbnb, Jaguar and Sony to create targeted ads. In March, Blis raised £19m from Beringea, Endeit Capital and Unilever Ventures. New offices in Germany, Dubai, Hong Kong and New Zealand helped sales — which come from fees for the use of its platform — reach £15.1m in 2015.

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Company details
Year2016
Rank25
CompanyBlis
ActivityAdvertising technology provider
LocationCentral London
Average 3 year sales growth109.76%
Latest sales £000s*15,129
Staff97
Founded2004
Websitewww.blis.com

If applicable:

* supplied by company † annualised figure