Greg Sandrock
CIC
Greg Sandrock is a primary owner of The Cornerstone Agency in Tampico, Illinois. He was installed as Big “I” Chair Elect in September 2025. Sandrock was the president of Big I of Illinois and served as their national director, prior to joining the Big “I” Executive Committee in 2022. Over the years, he has taken on key leadership roles, including serving as a member and chairman of the Big “I” Crop Task Force, as well as a member of the InsurPac Board of Trustees, the Big “I” Steering Committee, and the Big “I” Government Affairs Committee. In particular, Sandrock is a passionate advocate for the importance of crop insurance. Using his expertise and strong connections on Capitol Hill, he makes sure farm agents’ concerns are heard and addressed during crucial farm bill negotiations. Sandrock owns The Cornerstone Agency along Todd Mickley and his sons, Luke and Tyler. It is a family-owned business that serves clients across Illinois and the Midwest from five locations. Founded in 1896, the Independent Insurance Agents & Brokers of America (the Big “I”) is the nation’s oldest and largest national association of independent insurance agents and brokers, representing more than 25,000 agency locations united under the Trusted Choice brand. Trusted Choice independent agents offer consumers all types of insurance—property, casualty, life, health, employee benefit plans and retirement products—from a variety of insurance companies.
Big "I" Chair Elect: IIABA
Greg Sandrock is a primary owner of The Cornerstone Agency in Tampico, Illinois. He was installed as Big “I” Chair Elect in September 2025. Sandrock was the president of Big I of Illinois and served as their national director, prior to joining the Big “I” Executive Committee in 2022. Over the years, he has taken on key leadership roles, including serving as a member and chairman of the Big “I” Crop Task Force, as well as a member of the InsurPac Board of Trustees, the Big “I” Steering Committee, and the Big “I” Government Affairs Committee. In particular, Sandrock is a passionate advocate for the importance of crop insurance. Using his expertise and strong connections on Capitol Hill, he makes sure farm agents’ concerns are heard and addressed during crucial farm bill negotiations. Sandrock owns The Cornerstone Agency along Todd Mickley and his sons, Luke and Tyler. It is a family-owned business that serves clients across Illinois and the Midwest from five locations. Founded in 1896, the Independent Insurance Agents & Brokers of America (the Big “I”) is the nation’s oldest and largest national association of independent insurance agents and brokers, representing more than 25,000 agency locations united under the Trusted Choice brand. Trusted Choice independent agents offer consumers all types of insurance—property, casualty, life, health, employee benefit plans and retirement products—from a variety of insurance companies.