Bright Grey chief underwriter Stuart Johnson is leaving the firm to join Legal & General.
Johnson will be leaving Edinburgh-based Bright Grey in November so he can move south to be closer to his family.
He is regarded as the driving force behind Bright Grey's underwriting team. Since March 2003, the team has grown from four to 32 and continues to expand.
Johnson was behind the publication earlier this year of a Bright Grey underwriting guide for advisers which aimed to demystify underwriting processes and procedures.
Communications manager Mark Locke says Johnson is a well liked figure at Bright Grey and he will be missed.
The firm plans to start looking for a new chief underwriter as soon as Johnson's resignation is formalised.
Chief executive David Rob-inson says: “We are very sorry to see Stuart leave Bright Grey and we wish him all the best. Our underwriting team is still growing and it will continue to do so as our business increases.”