Stephen Williams
Chief Financial Officer
← Back to Leadership Team

Stephen Williams is Sonnedix’s Chief Financial Officer and an Executive Vice President of the company. He joined Sonnedix in 2013 with over 20 years of experience growing innovative technology businesses in the UK and around the world. At Sonnedix, he has played a key role in developing the global finance team, as well as leading the London office through a period of massive growth and change.

Prior to joining Sonnedix, he was a member of the Executive Leadership Team at Symbian—a joint venture set up by Psion, Nokia, Motorola and Ericsson—to develop a software platform for mobile phones. Joining at its inception in 1998 as EVP Finance and Operations, and later serving as CIO, Stephen helped grow the company to over 1,500 employees worldwide with a turnover exceeding £300M. In 2007, he joined former colleagues from Symbian to help establish AQA63336, a pioneering and highly successful text messaging Q&A service, which they grew from its infancy to six years of continuous profits before selling the business to a third party.

Stephen holds a First Class Honours degree in Civil Engineering from the University of Birmingham, as well as a degree in History from Birkbeck College at the University of London. In addition, Stephen is also qualified as a Chartered Accountant (ACA) and an Associate Corporate Treasurer (ACT).

To Stephen, the best things about working at Sonnedix is that not only is it a growing company in a cool industry, but it also employs really clever and creative people who go the extra mile to help one another.