| CANANWILL, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 19, 1979 | Active |
| AON CONSULTING OF NEW JERSEY, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Apr 4, 1986 | Active |
| ALEXANDER REINSURANCE INTERMEDIARIES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 19, 1988 | Active |
| WORLDWIDE INTEGRATED SERVICES COMPANYLocation not reported, CT · Active | Location not reported, CT | Corporation | Aug 8, 1990 | Active |
| K & K INSURANCE GROUP, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Oct 28, 1991 | Active |
| AON CONSULTING, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 25, 1995 | Active |
| AON RE, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Nov 9, 1995 | Active |
| AON SERVICE CORPORATIONLocation not reported, CT · Active | Location not reported, CT | Corporation | Sep 11, 1998 | Active |
| AON FAC, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Nov 20, 1998 | Active |
| CUSTOM BENEFIT PROGRAMS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Nov 30, 2000 | Active |
| AIS INSURANCE AGENCY, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Sep 21, 2001 | Active |
| AON PREMIUM FINANCE, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Aug 12, 2004 | Active |
| CANANWILL PREMIUM FUNDING COLocation not reported, CT · Active | Location not reported, CT | Corporation | May 3, 2005 | Active |
| AON EDGE INSURANCE AGENCY, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | May 20, 2005 | Active |
| PROTECTIVE MARKETING ENTERPRISES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Sep 2, 2005 | Active |
| AON TC HOLDINGS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | May 5, 2006 | Active |
| AON CONSULTING & INSURANCE SERVICES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Aug 19, 2008 | Active |
| AON RECOVERY, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | Nov 20, 2008 | Withdrawn |
| AON RISK SERVICES NORTHEAST, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Mar 24, 2009 | Active |
| ALLIANCE HEALTHCARD OF FLORIDA, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Aug 19, 2009 | Active |
| AON RISK SERVICES, INC. OF FLORIDALocation not reported, CT · Active | Location not reported, CT | Corporation | Jun 7, 2011 | Active |
| COVERWALLET, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Feb 26, 2016 | Active |
| AON RISK SERVICES SOUTH, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | May 8, 2025 | Active |
| Aon/Albert G. Ruben Insurance Services, Inc.Location not reported, CT · Active | Location not reported, CT | Corporation | Jun 9, 2025 | Active |
| Aon Private Risk Management Insurance Agency, Inc.Location not reported, CT · Active | Location not reported, CT | Corporation | Jun 10, 2025 | Active |
| Aon Risk Services, Inc. of MarylandLocation not reported, CT · Active | Location not reported, CT | Corporation | Jun 16, 2025 | Active |
| Aon Risk Services Central, Inc.Location not reported, CT · Active | Location not reported, CT | Corporation | Jun 16, 2025 | Active |
| AON RISK INSURANCE SERVICES WEST, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jun 25, 2025 | Active |
| AON RISK CONSULTANTS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jun 26, 2025 | Active |
| AON RISK SERVICES SOUTHWEST, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Dec 10, 2025 | Active |
| Aon Risk Services, Inc. of Washington, D.C.Location not reported, CT · Active | Location not reported, CT | Corporation | Dec 10, 2025 | Active |