Aon Completes Strategic Acquisition in Japan
On March 1, 2025, global insurance and reinsurance broker Aon successfully finalized the acquisition of the in-house insurance agency business from Mitsubishi Chemical Group (MCG). This move marks a significant expansion of Aon’s footprint in Japan’s insurance market.
The acquired business was part of Dia Rix, the internal business services provider for MCG group companies. Post-acquisition, Aon will deliver both corporate and personal insurance solutions to MCG group companies and their employees within Japan.
This strategic acquisition is designed to bolster Aon’s Risk Capital and Human Capital service capabilities in the region. With the integration, Aon has welcomed 100 new colleagues in Japan, expanding its workforce to over 400 professionals. This team, led by Tatsuya Yamamoto, Head of Japan at Aon, is poised to deliver enhanced services to clients.
Yamamoto remarked, “In the ever-evolving landscape of in-house agencies, MCG has taken a pioneering step by partnering with Aon to better cater to the needs of their companies and employees. This initiative is set to redefine industry standards, especially in light of recent changes in the Japanese non-life insurance market, which many firms are closely monitoring.”
He further added, “Our focus will be on ensuring a seamless integration of the in-house insurance agency, benefiting MCG, Dia Rix, and Aon alike.”
