Sullivan Group Since 1957 Sullivan Group has provided insurance and risk management services for individuals and small to mid-sized businesses. Although we’re proudly independent, we represent virtually all major insurance carriers to give you a host of coverage options. And our team of seasoned experts — including 18 principal/owners — offer trusted counsel to tailor just the right plan to your unique situation. Sullivan Group is fiercely proud of our local roots and relationships in Worcester, MA, and is equally excited about our growing reach domestically and internationally.