| Dayna Baird Payne | American Wind Energy Association | — | Sep-Dec09 |
| Donald Baird | American Wind Energy Association | — | Sep-Dec09 |
| Gregory Paul | Bureau of Workers' Compensation | — | Sep-Dec10 |
| Margaret Concilla | Bureau of Workers' Compensation | — | Sep-Dec10 |
| Frederick E Mills | CBM Ohio, LLC | — | Sep-Dec09 |
| Karen A Cincione | CBM Ohio, LLC | — | Sep-Dec09 |
| Timothy J Bechtold | CBM Ohio, LLC | — | Sep-Dec09 |
| Brooke A Cheney | Coalition of Ohio Regional Districts | — | Sep-Dec10 |
| Kelly C O'Reilly | Coalition of Ohio Regional Districts | — | Sep-Dec10 |
| Matthew S Whitehead | Coalition of Ohio Regional Districts | — | Sep-Dec10 |
| Victor F Hipsley | Coalition of Ohio Regional Districts | — | Sep-Dec10 |
| John E Hollback, Jr. | Columbus Southern Power Company dba AEP & AEP Ohio | — | Sep-Dec09 |
| Leah Pappas Porner | Hemisphere Corporation | — | Sep-Dec09 |
| Leah Pappas Porner | Hemisphere Development LLC | — | Sep-Dec09 |
| Eric Weldele | Northeast Ohio Regional Sewer District | — | Sep-Dec10 |
| Matthew R Cox | Northeast Ohio Regional Sewer District | — | Sep-Dec10 |
| Nicholas C York | Northeast Ohio Regional Sewer District | — | Sep-Dec10 |
| John E Van Doorn | Ohio Association for Justice | — | Sep-Dec09 |
| Kevin L Futryk | Ohio Association for Justice | — | Sep-Dec09 |
| Michael P Morrison | Ohio Association for Justice | — | Sep-Dec09 |
| Jennifer Klein | Ohio Chamber of Commerce | — | Sep-Dec09 |
| Michael T Carey | Ohio Coal Association | — | Sep-Dec09 |
| Amy Kurt | Ohio Consumers' Counsel | — | Sep-Dec09 |
| Janine L Migden-Ostrander | Ohio Consumers' Counsel | — | Sep-Dec09 |
| Anthony Celebrezze | Ohio Department of Natural Resources | — | Sep-Dec09 |
| Michael P Shelton | Ohio Department of Natural Resources | — | Sep-Dec09 |
| Rich Milleson | Ohio Department of Natural Resources | — | Sep-Dec09 |
| Sean D Logan | Ohio Department of Natural Resources | — | Sep-Dec09 |
| Trish Demeter | Ohio Department of Natural Resources | — | Sep-Dec09 |
| Kristy Meyer | Ohio Environmental Council | — | Sep-Dec09 |
| John E Hollback, Jr. | Ohio Power Company dba AEP & AEP Ohio | — | Sep-Dec09 |
| Karl R. Gebhardt | RWE Americas Services, LLC | — | Sep-Dec09 |
| Matthew S Whitehead | Sanofi Pasteur | — | Sep-Dec09 |
| Brooke A Cheney | Synagro-WWT, Inc | — | Sep-Dec09 |
| Kelly C O'Reilly | Synagro-WWT, Inc | — | Sep-Dec09 |
| Matthew S Whitehead | Synagro-WWT, Inc | — | Sep-Dec09 |
| Victor F Hipsley | Synagro-WWT, Inc | — | Sep-Dec09 |
| Gregory J Vehr | University of Cincinnati | — | Sep-Dec09 |
| Margaret VanMeter Rolf | University of Cincinnati | — | Sep-Dec09 |