Marybeth Diffley

Marybeth Diffley serves as the COO at ACE Group and has extensive experience in the insurance industry. Since June 2013, Marybeth has held the position of CUO Excess Casualty at Chubb. Prior to this, Marybeth worked at AIG from 1999 to 2013, where multiple roles as COO for Excess Casualty were undertaken, demonstrating a strong background in operational leadership within the sector.