Red Badger, which specialises in helping large companies become more customer-focused through bolder technology choices, employs 70 staff at its Old Street office.
An ecommerce site for Fortnum & Mason, a content management system for Sky and a new online presence for Camden Market are among the company’s recent projects.
Three former colleagues, Cain Ullah, 36, Stuart Harris, 53, and David Wynne, 36, started the business together in 2010 and increased sales to £5.7m in 2015.
Today, the company has been ranked 44th out of the top 100 tech firms compiled by The Sunday Times alongside Fast Track and Cain believes it has the potential to propel the business onto the next level.
He said: "Being included in The Sunday Times Tech Track 100 marks a major milestone for Red Badger moving from a start-up to a big challenger business.
“We've done this through implementing a completely fresh approach to digital consulting, delivering value time and again in some incredibly complex environments.
“The Red Badger team are incredibly tenacious, dynamic and super bright… it’s a thrill to work with people who care about your business as much as you do” says Fortnum’s Zia Zareem-Slade.
“Our track record in driving value and our fresh approach has enabled us to create lasting change in some of the world's biggest companies."
The Sunday Times Hiscox Tech Track 100 league table ranks Britain’s 100 private tech (TMT) companies with the fastest-growing sales over their latest three years.
It is compiled by Fast Track and published in The Sunday Times each September and is currently in its 16th year.