JOHN O’BRIEN

EXECUTIVE VICE PRESIDENT, HEAD OF ENVIRONMENTAL 

+1 646 956 1604

John joined Ascot in 2019 to lead the Environmental practice. Prior to this, he held the role of President and CEO of Ironshore Environmental for over 9 years, where he built out a leading Environmental team.  Previous to Ironshore, John spent 13 years at AIG, rising to become their President of Environmental.

JOHN O’BRIEN

EXECUTIVE VICE PRESIDENT, HEAD OF ENVIRONMENTAL 

+1 646 956 1604

John joined Ascot in 2019 to lead the Environmental practice. Prior to this, he held the role of President and CEO of Ironshore Environmental for over 9 years, where he built out a leading Environmental team.  Previous to Ironshore, John spent 13 years at AIG, rising to become their President of Environmental.