Primary Broker Services (PBS) and PBS Holdings have doubled their office space in Birmingham.
PBS said the development was made in order to meet its "expansion needs".
The company also said it had appointed Robert Dawes as a business development manager and Kelly Haslehurst in the newly created role of marketing & communications manager.
Andy Jones, UK sales manager: “Primary Broker Services has seen unprecedented growth since the company launched just under four years ago."
Jonathan Davey, CEO of PBS Holdings, said: “We are delighted with the growth achieved so far and look forward continued success as we seek to create synergies across the businesses as well as supporting each business unit in their endeavours.”