Skip to main content
Opens in a new tab External site
Peter Lieb retiring from Aon after 10 years of distinguished global service

LONDON (4 June 2019) – Aon plc (NYSE:AON), a leading global professional services firm providing a broad range of risk, retirement and health solutions, has today announced that Peter Lieb is retiring from the firm after ten distinguished years of service as Executive Vice President and General Counsel.

As Aon’s General Counsel, Lieb led the firm’s Global Law Department and managed legal, compliance, regulatory and public affairs for Aon. He also served as company secretary since 2013. During his time at Aon, Lieb built a strong legal team and the firm will now begin a search for a leader to assume his responsibilities on a permanent basis.

“Peter has had a distinguished 37-year legal career spanning the public and private sectors and we are grateful for his 10 years of service at Aon,” said Greg Case, Chief Executive Officer of Aon. “I want to recognize him for his exceptional leadership and thank him for the outstanding team he has built. Peter’s contributions have further strengthened our firm and we wish him the best as he begins a new chapter.”

“It has been a privilege to serve my colleagues at Aon over the last ten years,” said Peter Lieb. “After almost 25 years in the private sector, working primarily as an in-house corporate lawyer, I’m energized by the idea of using my legal skills to give back to our community in new and different ways. I have every confidence in our leadership team and the direction of the firm, making this an ideal time to transition my responsibilities.”

Lieb will continue to serve as General Counsel while a search is conducted for his replacement and then remain as an advisor to the firm.


About Aon
Aon plc (NYSE:AON) is a leading global professional services firm providing a broad range of risk, retirement and health solutions. Our 50,000 colleagues in 120 countries empower results for clients by using proprietary data and analytics to deliver insights that reduce volatility and improve performance.

Follow Aon on Twitter and LinkedIn 
Stay up to date by visiting the Aon Newsroom and hear from our expert advisors in The One Brief.

Media Contact:
Ellen Barry, 312.381.2140,

Media Resources

Access international media contacts, the full library of Aon media releases, and a media kit with fact sheet and executive bios, via links below.

Media Contacts
Media Releases
Media Kit
Featured Updates