| AON CONSULTING, INC. D/B/A AON CONSULTING OF NEW YORK, INC. | — | FB019609 | 1996-12-10 | Active | Chicago |
| AON EDGE INSURANCE AGENCY, INC. | — | FB029548 | 2005-04-15 | Active | CHICAGO |
| AON ENTERPRISE INSURANCE SERVICES, INC. | — | FB018345 | 1995-10-19 | Inactive | CHICAGO |
| AON FINANCIAL & INSURANCE SOLUTIONS, INC. | — | FB028932 | 2004-09-14 | Active | Chicago |
| AON HEALTHCARE INSURANCE SERVICES, INC. | — | FB023294 | 1999-12-07 | Revoked | CHICAGO |
| AON HEWITT INVESTMENT CONSULTING, INC. | — | FB035088 | 2011-04-19 | Active | CHICAGO |
| AON INSURANCE AGENCY LLC | — | FL000680 | 2000-04-10 | Active | CHICAGO |
| AON INSURANCE SERVICES, INC. | — | FB018275 | 1995-09-29 | Inactive | CHICAGO |
| AON PREMIUM FINANCE, LLC | — | FL002361 | 2005-04-27 | Active | CHICAGO |
| AON PRIVATE RISK MANAGEMENT INSURANCE AGENCY, INC. | — | FB021121 | 1998-03-20 | Active | CHICAGO |
| AON RISK INSURANCE SERVICES WEST, INC. | — | FB013049 | 1989-09-27 | Active | Chicago |
| AON RISK RESOURCES INSURANCE AGENCY, INC. | — | FB021137 | 1998-03-24 | Inactive | CHICAGO |
| AON RISK SERVICES CENTRAL, INC. | — | FB022748 | 1999-07-15 | Active | Chicago |
| AON RISK SERVICES NORTHEAST, INC. | — | FB013590 | 1990-05-22 | Active | Chicago |
| AON RISK SERVICES OF MISSOURI, INC. | — | FB016923 | 1994-05-10 | Inactive | CHICAGO |
| AON RISK SERVICES OF MISSOURI, INC. | — | FB022765 | 1999-07-21 | Inactive | CHICAGO |
| AON RISK SERVICES SOUTH, INC. | — | FB026914 | 2003-01-06 | Active | CHICAGO |
| AON RISK SERVICES SOUTHWEST, INC. | — | FB011709 | 1987-09-25 | Active | Chicago |
| AON RISK SERVICES, INC. OF ARIZONA | — | FB012824 | 1989-06-26 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF ARKANSAS, INC. | — | FB029607 | 2005-05-09 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF CENTRAL CALIFORNIA INSURANCE SERVICES | — | FB016976 | 1994-05-31 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF COLORADO | — | FB015392 | 1992-07-17 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF CONNECTICUT | — | FB010748 | 1986-03-06 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF CONNECTICUT | — | FB019384 | 1996-10-07 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF FLORIDA | — | FB021281 | 1998-04-30 | Active | CHICAGO |
| AON RISK SERVICES, INC. OF GEORGIA | — | FB027009 | 2003-02-03 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF ILLINOIS | — | FB011380 | 1987-03-19 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF INDIANA | — | FB022551 | 1999-05-18 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF KANSAS | — | FB022745 | 1999-07-15 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF MARYLAND | — | FB011894 | 1988-02-01 | Active | Chicago |
| AON RISK SERVICES, INC. OF MASSACHUSETTS | — | FB013788 | 1990-08-27 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF MICHIGAN | — | FB012193 | 1988-07-11 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF MINNESOTA | — | FB018557 | 1996-01-09 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF MINNESOTA | — | FB022788 | 1999-07-27 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF NEBRASKA | — | FB017923 | 1995-05-26 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF NEW JERSEY | — | FB023615 | 2000-03-02 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF NEW JERSEY | — | FB014588 | 1991-05-28 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF NEW MEXICO | — | FB024024 | 2000-06-22 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF NEW YORK | — | FB016995 | 1994-06-06 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF OHIO | — | FB022399 | 1999-03-31 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF OKLAHOMA | — | FB016124 | 1993-06-08 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF OREGON | — | FB022726 | 1999-07-12 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF OREGON | — | FB018490 | 1995-12-19 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF PENNSYLVANIA | — | FB022757 | 1999-07-19 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF PENNSYLVANIA | — | FB016746 | 1994-03-07 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF SOUTHERN CALIFORNIA INSURANCE SERVICES | — | FB015111 | 1992-03-02 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF TENNESSEE | — | FB019502 | 1996-11-06 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF THE CAROLINAS | — | FB023777 | 2000-04-14 | Revoked | CHICAGO |
| AON RISK SERVICES, INC. OF UTAH | — | FB017088 | 1994-07-08 | Inactive | CHICAGO |
| AON RISK SERVICES, INC. OF WASHINGTON | — | FB027226 | 2003-04-21 | Inactive | CHICAGO |