Marsh McLennan Agency to acquire Accel Holdings

Marsh McLennan Agency (MMA) has agreed to acquire Accel Holdings, a diversified independent insurance and advisory firm based in Waverly, Iowa. While the financial terms of the deal were not disclosed, the transaction is expected to close in the third quarter of 2026, subject to customary closing conditions.

Accel Holdings, founded in 1936, operates seven offices across Iowa, Illinois, Missouri, and Kansas. The firm provides a range of services including commercial and personal insurance, employee benefits, agribusiness solutions, wealth management, and retirement advisory services. The acquisition is intended to expand MMA’s presence in the Upper Midwest and integrate Accel’s specialized expertise in agribusiness and retirement services into its existing capabilities.

More than 130 Accel employees are expected to join MMA and remain in their current locations following the acquisition.