Erinaceous has purchased Keelan Westall for £19.7m.
The listed company made the acquisition via its insurance subsidiary, Hanover Park Commercial (HPC).
Andy Halstead, chief executive of HPC, said: “The growth aspirations of HPC are greatly enhanced by the acquisition of Keelan Westall. The Keelan Westall team brings expertise and infrastructure that delivers a step change in HPC's product range and service to customers. This acquisition makes HPC one of the largest independent brokers in the property insurance market with a GWP of circa £200m.
"We are pleased to welcome the following members of Keelan Westall to the senior team of HPC, subject to the relevant regulatory approvals. Tony Trueman will become the finance director of HPC, Nick Crocker the insurance director of HPC and Ashley Canning will become managing director of Keelan Westall."