Insurance broker Aon plc announced that Eric Andersen has transitioned from his role as president to serve as a senior adviser to Greg Case, CEO of Aon, through June 2026.
The role of president now has been assumed by Case, who first joined the broker in 2005 as president and CEO and last held the dual role in 2018. Andersen has been president of Aon since February 2020. The company announced the leadership transition (effective on March 14) in a March 17 filing with the Securities and Exchange Commission.
An Aon representative said the change will be permanent.

Andersen joined Aon with the firm’s acquisition of Minet in 1997 and has played a significant role over the last 28 years in advancing the firm’s Aon United strategy, resulting in positive outcomes for clients, colleagues and shareholders. Before becoming Aon’s president, Andersen had held the role of co-president since May 2018.
Most recently as president, Andersen helped bring together Aon’s integrated Risk Capital (Reinsurance and Commercial Risk) and Human Capital (Health, Wealth and Talent) capabilities and operationalize Aon’s 3×3 Plan to go further, faster to serve clients, Aon said.
“Eric has exemplified what it means to be Aon United – putting our clients first, championing innovation and addressing some of the greatest risks facing business and society,” said Case in a statement.

“Across our global firm, you can see Eric’s impact in the strength of our integrated offerings and expertise, the next-generation actionable analytics we’re introducing to clients and the innovative solutions we’re creating to address risk and people issues around the world,” Case added. On behalf of our 60,000 colleagues, I want to thank Eric for his leadership and the depth of the contributions he made to help position our firm to deliver distinctive value for our clients well into the future.”
“I’m deeply grateful to have spent nearly three decades with Aon, working alongside an incredibly talented group of colleagues, partners and clients,” said Andersen.
“It’s been a privilege to be a part of such an exciting journey at Aon. With the firm’s 3×3 Plan and a strong executive team in place, alongside the successful integration of NFP, now is the right time to move into an advisory role and I look forward to seeing the firm continue to grow and succeed in the years to come,” he continued.
Source: Aon