Commercial Insurance - Unimark Insurance Company History Organized in 1969, Unimark has thrived by being dedicated to customer service. Founder Charles Terrell and longtime partner Bill Brown are personally involved in agency business. The Unimark approach insures the highest quality service and most aggressive pricing. Recognizing special needs and special opportunities, Unimark designs unique approaches and programs to suit them.
Clients deal personally with seasoned principals and top officers.
Though Unimark is certainly one of the larger privately owned agencies in Texas, its partners and executives still retain the dynamic spirit and personal touch that have sparked the company's success for over three decades of service.