Northern Insurance is a diversified full-service insurance agency, serving individuals and businesses throughout the U.S. and beyond. The roots of Northern Insurance Group, Ltd. begin with the Cornolo Insurance Agency, established in 1927 by Joe Cornolo in the back of a Lockport, IL grocery store. The Northern Insurance organization as it exists today was created in 2005, bringing the collective efforts of several insurance professionals under one organization to provide streamlined service, better technology, and advanced product offerings to our current and future clients.