This is a list of companies who are known to have sponsored International students for employment.

Here is where the link can be found and it was put together by the University of Chicago.

Life & Health Insurance:
Pheonix Life
Sun Life
CIGNA

Consulting:
Aon Hewitt
Towers Watson
Mercer
Buck Consultants
Deloitte & Touche

Reinsurance:
Swiss Reinsurance
Munich Reinsurance
Zurich Reinsurance
RGA

Property & Casualty Insurance:
Liberty Mutual
American Automobile Association (AAA)