Founded in 1887, Cottingham & Butler has grown from a small, regional insurance agency into one of the largest privately held insurance brokers in the United States. Headquartered in Dubuque, Iowa, it serves clients nationwide with a focus on delivering sophisticated risk management, insurance, employee benefits, and safety solutions.
C&B’s transportation division is the largest in the country exclusively dedicated to the trucking industry, representing over 2,000 clients and partnering with every major commercial trucking insurance carrier. As a family-owned business with a 130+ year legacy, C&B combines deep industry expertise with forward-thinking strategies—offering everything from traditional insurance placement to innovative captive programs, compliance support, analytics, and proprietary tools like the IRIS client portal.
Cottingham & Butler doesn’t just sell insurance—it helps businesses navigate risk, improve performance, and plan for long-term success.