Alan Durrant will become sole chief executive of Harwood Wealth Management as part of changes to the company's board.
Currently joint chief executive with Neil Dunkley, Mr Durrant will take sole lead of the group as well as continue to lead the growth of Wellian, the investment management division of the company.
Meanwhile Mr Dunkley will become managing director of financial planning at Harwood and remain an executive director of the company.
Harwood said the change will allow him to fully dedicate his time to management of the financial advisory business.
In addition, Nick Bravery, currently Harwood's chief financial officer, has said he intends to stand down in October, but after this he will become company secretary.
Peter Mann, chairman of Harwood Wealth Management, said: "As Harwood continues to grow and deliver against its strategy, we believe that the changes made today make the best possible use of the resources within our senior team and are confident that this will continue to enable the group to thrive.
"The board is very pleased that we will be retaining Neil and Nick’s skills within the group. Alongside Alan and the board, they have led the group through several years of rapid growth and its listing on AIM. We look forward to their continued contribution in their new roles.
"With a robust board, positive market drivers and an exciting pipeline of acquisition opportunities ahead of us, we look forward to the future with confidence."
These changes have been driven, in part, by the upcoming introduction of the Senior Managers Regime but Harwood also said they were part of the company's "continuing evaluation of how best to organise its internal structure and reporting lines".
The board intends to appoint a replacement chief financial officer before Mr Bravery’s transition and has identified a number of appropriate candidates, with more announcements made "at the appropriate time".
damian.fantato@ft.com
