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Fraud prevention software company

Company overview

Used by call centres globally, Semafone provides the fraud prevention software necessary for companies to take secure customer payments over the phone.

Its technology masks the tones from a cardholder’s telephone and replaces them with an unrecognisable flat tone.


Company information

Head office
  • Guilford, Surrey
  • Tim Critchley
  • David Sear
BGF office
BGF team
Investment date
  • Oct 2014 - Jun 2021
Total BGF investment
  • £4 million