Biography of Thomas Grandmaison

Last update: May 6, 2021


Thomas was Executive Vice President, Construction Casualty Leader at AIG, and Senior Vice President at Lexington Insurance. Thomas Grandmaison joined Aon in 2019.

Thomas Grandmaison is currently Managing Director, Chief Broking Officer, Construction Services Group at Aon - View - Aon org chart

Create an alert
to follow the career of Thomas Grandmaison.


In 1987, Thomas Grandmaison completed a Bachelor of Arts in Management at Assumption College.

They have also studied at Assumption College :

Find more alumni.

The colleagues of Thomas Grandmaison

Company Colleagues
Industry Colleagues
  • In the Insurance industry, Thomas Grandmaison has 55,121 colleagues in 3,734 companies located in 127 countries. 19,921 executive movements have been recorded in the last 12 months. Learn more about Insurance.

Report an error
Update the org chart details of Thomas Grandmaison.

Get in Touch

Use our Premium/VIP Service to contact Thomas Grandmaison by email now. Here are a few tips for establishing great contacts.

Send an email
to Thomas Grandmaison.
With Skype, Call Aon at +44 207... and ask for Thomas Grandmaison.


The most constantly updated executive directory.



Learn about your clients' org charts. Understand their industries and their competitors.



View the executives' biographies. Contact the executives through our email platform.



Select key words to follow your clients. Receive alerts when executive movements happen.


Track your clients

File your clients in folders. Add private notes. Download our data in Excel on your PC.