iiSi, a division of Companion Life Insurance Company

Founded in 1983 as Intermediary Insurance Services, Inc. and acquired by Companion Life Insurance Company in 2009, iiSi has become one of the preeminent underwriters of medical stop loss insurance in the country. iiSi functions as a division of Companion Life and utilizes Companion Life and its affiliate carriers Niagara Life and Health Insurance Company and Companion Life Insurance Company of California to offer stop loss insurance in all 50 states. Because of this relationship, we are able to offer the strong combination of stability as a direct writer, with the expertise and focus of a managing general underwriter. Throughout our 40+ year history, we've consistently stayed a step-ahead of the marketplace evolution. You can trust that we will be a partner that stays nimble, providing effective, creative stop loss insurance solutions no matter what challenges the market presents.