| City of Columbus | — | Jan-Apr10 |
| Pamela E. Hykes O'Grady | City of Columbus | — | Jan-Apr10 |
| Coalition of Ohio Regional Districts | — | Jan-Apr10 |
| Brooke A Cheney | Coalition of Ohio Regional Districts | — | Jan-Apr10 |
| Kelly C O'Reilly | Coalition of Ohio Regional Districts | — | Jan-Apr10 |
| Matthew S Whitehead | Coalition of Ohio Regional Districts | — | Jan-Apr10 |
| Victor F Hipsley | Coalition of Ohio Regional Districts | — | Jan-Apr10 |
| County Commissioners' Association of Ohio | — | Sep-Dec09 |
| Joshua Hahn | County Commissioners' Association of Ohio | — | Jan-Apr10 |
| Larry L Long | County Commissioners' Association of Ohio | — | Sep-Dec09 |
| OCSEA AFSCME Local 11 | — | Jan-Apr10 |
| Cathryn K Fellinger | OCSEA AFSCME Local 11 | — | Jan-Apr10 |
| Ohio American Water Company | — | Sep-Dec09 |
| Christopher N Slagle | Ohio American Water Company | — | Sep-Dec09 |
| Gregory J Lestini | Ohio American Water Company | — | Sep-Dec09 |
| Ohio Chamber of Commerce | — | Jan-Apr10 |
| Jennifer Klein | Ohio Chamber of Commerce | — | Jan-Apr10 |
| Ohio Environmental Council | — | Sep-Dec09 |
| Jack Shaner | Ohio Environmental Council | — | May-Aug10 |
| Kristy Meyer | Ohio Environmental Council | — | Sep-Dec09 |
| Ohio Environmental Protection Agency | — | Sep-Dec09 |
| Charlotte B Hickcox | Ohio Environmental Protection Agency | — | Sep-Dec09 |
| Chris Korleski | Ohio Environmental Protection Agency | — | Sep-Dec09 |
| Laura H. Factor | Ohio Environmental Protection Agency | — | Sep-Dec09 |
| Tracy S Freeman | Ohio Environmental Protection Agency | — | Sep-Dec09 |
| Ohio Real Estate Investors Association | — | Sep-Dec09 |
| Brooke A Cheney | Ohio Real Estate Investors Association | — | Sep-Dec09 |
| Kelly C O'Reilly | Ohio Real Estate Investors Association | — | Sep-Dec09 |
| Matthew S Whitehead | Ohio Real Estate Investors Association | — | Sep-Dec09 |
| Victor F Hipsley | Ohio Real Estate Investors Association | — | Sep-Dec09 |
| Stephen D Dimon, Jr | Ohio Rural Water Association | — | Jan-Apr10 |
| Ohio Water Well Association | — | May-Aug10 |
| Luther L Liggett, Jr. | Ohio Water Well Association | — | May-Aug10 |
| Utility Service Co., Inc. | — | Jan-Apr10 |
| Matthew Forney | Utility Service Co., Inc. | — | Sep-Dec09 |