| Andrew Minton | City of Columbus | — | Sep-Dec21 |
| Greg Bennett | City of Columbus | — | Sep-Dec21 |
| Stephen Nielson | City of Columbus | — | Sep-Dec21 |
| Stephen Sayre | City of Columbus | — | Sep-Dec21 |
| William L Byers, IV | City of Columbus | — | Sep-Dec21 |
| Andrew Huffman | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Brooke A Cheney | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Kelsey Woolard | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Matthew S Whitehead | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Victor F Hipsley | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Andrew Minton | Ductile Iron Pipe Research Association | — | Sep-Dec21 |
| Greg Bennett | Ductile Iron Pipe Research Association | — | Sep-Dec21 |
| William L Byers, IV | Ductile Iron Pipe Research Association | — | Sep-Dec21 |
| Bradley Bales | Governor's Office | — | Sep-Dec22 |
| Trent Champlin | Industrial Commission of Ohio | — | Sep-Dec22 |
| Andrew Huffman | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Brooke A Cheney | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Kelsey Woolard | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Matthew S Whitehead | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Victor F Hipsley | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Julia Wynn | Ohio Association of Regional Councils | — | Sep-Dec21 |
| Kevin L Futryk | Ohio Association of Regional Councils | — | Sep-Dec21 |
| Amanda R Sines | Ohio Campground Owners Association | — | Sep-Dec21 |
| Kristy M Smith | Ohio Campground Owners Association | — | Sep-Dec21 |
| Gretchen Craycraft | Ohio Environmental Protection Agency | — | Sep-Dec21 |
| Jessica Langdon | Ohio Environmental Protection Agency | — | Sep-Dec21 |
| Laura H. Factor | Ohio Environmental Protection Agency | — | Sep-Dec21 |
| Laurie Stevenson | Ohio Environmental Protection Agency | — | Sep-Dec21 |
| Mark S. Johnson Jr. | Ohio Environmental Protection Agency | — | Sep-Dec22 |
| Andrew Huffman | Ohio Manufactured Homes Association (OMHA) | — | Sep-Dec22 |
| Brooke A Cheney | Ohio Manufactured Homes Association (OMHA) | — | Sep-Dec22 |
| Kelsey Woolard | Ohio Manufactured Homes Association (OMHA) | — | Sep-Dec22 |
| Matthew S Whitehead | Ohio Manufactured Homes Association (OMHA) | — | Sep-Dec22 |
| Victor F Hipsley | Ohio Manufactured Homes Association (OMHA) | — | Sep-Dec22 |
| Edward L Albright | Ohio Municipal League | — | Sep-Dec21 |
| Thomas Wetmore | Ohio Municipal League | — | Sep-Dec21 |
| Andrew Huffman | Ohio Rural Water Association | — | Sep-Dec21 |
| Brooke A Cheney | Ohio Rural Water Association | — | Sep-Dec21 |
| Kelsey Woolard | Ohio Rural Water Association | — | Sep-Dec21 |
| Matthew S Whitehead | Ohio Rural Water Association | — | Sep-Dec21 |
| Victor F Hipsley | Ohio Rural Water Association | — | Sep-Dec21 |
| Terrence O'Donnell | Ohio Water Partnership | — | Sep-Dec21 |
| William Vorys | Ohio Water Partnership | — | Sep-Dec21 |
| Tim Brown | Toledo Metropolitan Council of Governments | — | Sep-Dec21 |