InsurBanc The bank of choice for Independent Insurance Agents and Brokers InsurBanc is an independent community bank that was founded by agents exclusively for agents. Organized in 2001 by the Big “I” specifically to serve independent insurance agents, we have developed a distinctive culture that allows us the opportunity to work with you as a partner to help optimize growth opportunities and manage your agency efficiently. We specialize in agency financing including acquisition and perpetuation and custom cash management services.