The new branches which open this summer will be in Truro and Brighton.
The Brighton office will be seven strong and headed by David Pegler, Michael Phillips and Ewan Emmerson who will all be joining Brewin Dolphin.
The Truro branch will have a six strong team of investment mangers and their support staff and will be headed by Darryn Richards and Lee Dearden, who are joining the firm from Redruth.
Brewin Dolphin executive chairman Jamie Matheson says: “This is very exciting news for the company and takes us up to 40 branches in total around the UK and the Channel Islands.”