Tech Track 100

This Hull company helps keep London moving by issuing Oyster cards for London Underground. In total it has supplied more than 40m smartcards and travel tokens for customers ranging from Go-Ahead Group to the Pittsburgh and Milwaukee transport authorities. Founded in 1994 by managing director Terry Dunn, 63, ESP also provides the infrastructure behind travel smartcards, including call centres and data management. Sales in 2015 hit £67.7m, and it has since secured a large contract with Transport for London to supply contact centre services.

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Company details
CompanyESP Group
ActivityMass transit smartcards
Average 3 year sales growth96.25%
Latest sales £000s67,727

If applicable:

* supplied by company † annualised figure