| Sean P Dunn | AES Ohio | — | May-Aug10 |
| American Council of Engineering Companies of Ohio | — | May-Aug09 |
| Christopher N Slagle | American Council of Engineering Companies of Ohio | — | May-Aug09 |
| Donald L Mader | American Council of Engineering Companies of Ohio | — | Sep-Dec09 |
| Kurtis A Tunnell | American Council of Engineering Companies of Ohio | — | May-Aug09 |
| Luther L Liggett, Jr. | American Council of Engineering Companies of Ohio | — | May-Aug09 |
| Terrence O'Donnell | American Council of Engineering Companies of Ohio | — | May-Aug09 |
| Burgess & Niple, Inc | — | May-Aug09 |
| Brooke A Cheney | Burgess & Niple, Inc | — | May-Aug09 |
| Kelly C O'Reilly | Burgess & Niple, Inc | — | May-Aug09 |
| Matthew S Whitehead | Burgess & Niple, Inc | — | May-Aug09 |
| Victor F Hipsley | Burgess & Niple, Inc | — | May-Aug09 |
| County Auditors' Association of Ohio | — | May-Aug09 |
| Thomas P Pappas | County Auditors' Association of Ohio | — | May-Aug09 |
| Willa J Ebersole | County Auditors' Association of Ohio | — | May-Aug09 |
| County Commissioners' Association of Ohio | — | May-Aug09 |
| Bradford L Cole | County Commissioners' Association of Ohio | — | May-Aug09 |
| Cheryl L Subler | County Commissioners' Association of Ohio | — | May-Aug09 |
| John R Leutz | County Commissioners' Association of Ohio | — | May-Aug09 |
| Joshua Hahn | County Commissioners' Association of Ohio | — | May-Aug09 |
| Larry L Long | County Commissioners' Association of Ohio | — | May-Aug09 |
| Brooke A Cheney | Duke Energy Business Services | — | Sep-Dec10 |
| Kelly C O'Reilly | Duke Energy Business Services | — | Sep-Dec10 |
| Matthew S Whitehead | Duke Energy Business Services | — | Sep-Dec10 |
| Victor F Hipsley | Duke Energy Business Services | — | Sep-Dec10 |
| Christie Angel | Hamilton County Board of County Commissioners | — | May-Aug09 |
| Lisa H Dodge | Hamilton County Board of County Commissioners | — | May-Aug09 |
| Sean P Dunn | Hamilton County Board of County Commissioners | — | May-Aug09 |
| Illinois Tool Works | — | May-Aug10 |
| Brooke A Cheney | Illinois Tool Works | — | May-Aug10 |
| Kelly C O'Reilly | Illinois Tool Works | — | May-Aug10 |
| Matthew S Whitehead | Illinois Tool Works | — | May-Aug10 |
| Victor F Hipsley | Illinois Tool Works | — | May-Aug10 |
| League of Women Voters of Ohio | — | Jan-Apr10 |