| Charles Willoughby | American Municipal Power | — | Sep-Dec18 |
| Jolene M Thompson | American Municipal Power | — | Sep-Dec18 |
| Michael A Beirne | American Municipal Power | — | Sep-Dec18 |
| Andrew Etter | Association of Ohio Metropolitan Wastewater Agencies | — | Sep-Dec18 |
| Nathanael Jonhenry | Association of Ohio Metropolitan Wastewater Agencies | — | Sep-Dec18 |
| Timothy J Cosgrove | Association of Ohio Metropolitan Wastewater Agencies | — | Sep-Dec18 |
| Madison Whalen | City of Akron, OH | — | Sep-Dec18 |
| Melissa R Hoeffel | City of Akron, OH | — | Sep-Dec18 |
| Madison Whalen | City of Cincinnati | — | Sep-Dec18 |
| Melissa R Hoeffel | City of Cincinnati | — | Sep-Dec18 |
| Andrew Minton | City of Columbus | — | Sep-Dec18 |
| William L Byers, IV | City of Columbus | — | Sep-Dec18 |
| Andrew Huffman | Coalition of Ohio Regional Districts | — | Sep-Dec18 |
| Brooke A Cheney | Coalition of Ohio Regional Districts | — | Sep-Dec18 |
| Kelly C O'Reilly | Coalition of Ohio Regional Districts | — | Sep-Dec18 |
| Matthew S Whitehead | Coalition of Ohio Regional Districts | — | Sep-Dec18 |
| Victor F Hipsley | Coalition of Ohio Regional Districts | — | Sep-Dec18 |
| Adam Schwiebert | County Commissioners' Association of Ohio | — | Sep-Dec18 |
| Cheryl L Subler | County Commissioners' Association of Ohio | — | Sep-Dec18 |
| George T Glover | Delhi Township, Ohio | — | Sep-Dec18 |
| Andrew Minton | Ductile Iron Pipe Research Association | — | Sep-Dec18 |
| Greg Bennett | Ductile Iron Pipe Research Association | — | Sep-Dec18 |
| Jason Mauk | Ductile Iron Pipe Research Association | — | Sep-Dec18 |
| William L Byers, IV | Ductile Iron Pipe Research Association | — | Sep-Dec18 |
| Belinda M Jones | Franklin Soil and Water Conservation District | — | Sep-Dec18 |
| Beth Hansen | Governor's Office | — | Sep-Dec18 |
| Tim Biggam | Governor's Office | — | Sep-Dec18 |
| George T Glover | Green Township, Ohio | — | Sep-Dec18 |
| Charles H Gerhardt, III | Hamilton County Administration | — | Sep-Dec18 |
| James T Benedict | Hamilton County Administration | — | Sep-Dec18 |
| Andrew Huffman | Northeast Ohio Regional Sewer District | — | Sep-Dec18 |
| Brooke A Cheney | Northeast Ohio Regional Sewer District | — | Sep-Dec18 |
| Kelly C O'Reilly | Northeast Ohio Regional Sewer District | — | Sep-Dec18 |
| Matthew S Whitehead | Northeast Ohio Regional Sewer District | — | Sep-Dec18 |
| Victor F Hipsley | Northeast Ohio Regional Sewer District | — | Sep-Dec18 |
| Charles Willoughby | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Courtney Saunders | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Daniel P Leite | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Jolene M Thompson | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Kurt L Leib | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Lisa McAlister | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Michael A Beirne | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Robert N Eshenbaugh, Jr | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Scott Owens | Ohio Municipal Electric Association | — | Sep-Dec18 |
| Andrew Huffman | Ohio Rural Water Association | — | Sep-Dec18 |
| Brooke A Cheney | Ohio Rural Water Association | — | Sep-Dec18 |
| Kelly C O'Reilly | Ohio Rural Water Association | — | Sep-Dec18 |
| Matthew S Whitehead | Ohio Rural Water Association | — | Sep-Dec18 |
| Andrew Huffman | Ohio Township Association | — | Sep-Dec18 |
| Brooke A Cheney | Ohio Township Association | — | Sep-Dec18 |
| Heidi M Fought | Ohio Township Association | — | Sep-Dec18 |
| Kelly C O'Reilly | Ohio Township Association | — | Sep-Dec18 |
| Matthew DeTemple | Ohio Township Association | — | Sep-Dec18 |
| Matthew S Whitehead | Ohio Township Association | — | Sep-Dec18 |
| Victor F Hipsley | Ohio Township Association | — | Sep-Dec18 |
| George T Glover | Sycamore Township Board of Trustees | — | Sep-Dec18 |
| Jeff Polesovsky | The Columbus Partnership | — | Sep-Dec18 |
| William L Byers, IV | The Columbus Partnership | — | Sep-Dec18 |