Third Financial Group has made changes to its management structure including a new chief executive as the UK fintech company keeps pace with rapid growth in its software and custody businesses.

Ian Partington, chief executive of the firm’s custody business Third Platform Sevice (TPS), will retain his current role while taking on the additional job of group chief executive. He replaces Stewart Foster, who will become chief revenue officer.

Third Financial was founded in 2008 and provides software and platform services to wealth managers and other investment professionals. Its best-known product is Tercero Wealth, softw...