Founded in 1968, M3 Insurance is Wisconsin’s largest privately held commercial insurance agency, providing employee benefits, property & casualty, executive benefits, employer-sponsored retirement plans and personal lines. The professionals at M3 are aligned to specialized industry groups, serving clients across the country from five Wisconsin offices. M3 is consistently ranked in the top 1% of insurance brokers nationwide and has been named to the list of Best Places to Work in Insurance by Business Insurance magazine.