| Firm Name | Resident Manager | City | State |
|
O' Donnell Professional Services, P.A.
| Lawrence W. O'Donnell, Jr., CPA | Leavenworth | KS |
|
O'Flynn & Bihuniak Chartered
| William D. O'Flynn, CPA | Prairie Village | KS |
|
O'Halloran Sherman Associates, LLC
| Robert J. O'Halloran, CPA | Overland Park | KS |
|
On Target Training & Consulting, Inc.
| Larry Rinker, CPA | Topeka | KS |
|
Ong & Company
| Richard H. Ong, CPA | Overland Park | KS |
|
Orth, Chakler, Murnane & Co.
| Douglas J. Orth, CPA | Miami | FL |
|
Ostrow Reisin Berk & Abrams, Ltd.
| Alan M. Witt, CPA | Chicago | IL |
|