Aon North America, Inc.

Certification of approval for listing and registration on a national securities exchange

Registration of Securities on Exchange

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Certification of approval for listing and registration on a national securities exchange

Registration of Securities on Exchange

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Registration of Securities on Exchange

Registration of Securities on Exchange

Registration of Securities on Exchange

Registration of Securities on Exchange

Registration of Securities on Exchange

Automatic Shelf Registration

Registration of Securities on Exchange

Registration of Securities on Exchange

Registration of Securities on Exchange