The answer is "policyowners".
A mutual insurance company is claimed by policyholders. The sole motivation behind a common insurance agency is to give protection scope to its individuals and policyholders, and its individuals are given the privilege to choose administration. Government law, as opposed to state law, decides if a safety net provider can be delegated a common insurance agency.
Mutual insurance companies exist to guarantee that the advantages guaranteed to policyholders can be paid over the long haul. Since they are not exchanged on stock trades, shared insurance agencies can stay away from the weight of achieving here and now benefit targets.