| Associated Builders and Contractors of Ohio | — | Jan-Apr19 |
| Bryan Williams | Associated Builders and Contractors of Ohio | — | Jan-Apr19 |
| Association of Ohio Metropolitan Wastewater Agencies | — | Jan-Apr19 |
| Nathanael Jonhenry | Association of Ohio Metropolitan Wastewater Agencies | — | Jan-Apr19 |
| Attorney General's Office | — | May-Aug20 |
| City of Akron, OH | — | Jan-Apr19 |
| Madison Whalen | City of Akron, OH | — | Jan-Apr19 |
| Melissa R Hoeffel | City of Akron, OH | — | Jan-Apr19 |
| City of Cincinnati | — | Jan-Apr19 |
| Madison Whalen | City of Cincinnati | — | Jan-Apr19 |
| Melissa R Hoeffel | City of Cincinnati | — | Jan-Apr19 |
| City of Columbus | — | Jan-Apr19 |
| Andrew Minton | City of Columbus | — | Jan-Apr19 |
| Evelyn Kennedy | City of Columbus | — | Sep-Dec19 |
| Greg Bennett | City of Columbus | — | May-Aug19 |
| Stephen Nielson | City of Columbus | — | Sep-Dec19 |
| William L Byers, IV | City of Columbus | — | Jan-Apr19 |
| City of Dayton | — | Jan-Apr19 |
| City of Grove City | — | Sep-Dec19 |
| Deborah Hackathorn | City of Grove City | — | Sep-Dec19 |
| Joseph Ewig | City of Grove City | — | Sep-Dec19 |
| City of Toledo | — | Jan-Apr19 |
| Andrew W Herf | City of Toledo | — | Jan-Apr19 |
| City of Upper Arlington | — | Jan-Apr19 |
| Chad Hawley | City of Upper Arlington | — | Jan-Apr19 |
| Troy Judy | City of Upper Arlington | — | Sep-Dec19 |
| Troy Judy | Cleveland City Council | — | Sep-Dec19 |
| Coalition of Ohio Regional Districts | — | Jan-Apr19 |
| Andrew Huffman | Coalition of Ohio Regional Districts | — | Jan-Apr19 |
| Brooke A Cheney | Coalition of Ohio Regional Districts | — | Jan-Apr19 |
| Kelly C O'Reilly | Coalition of Ohio Regional Districts | — | Jan-Apr19 |
| Matthew S Whitehead | Coalition of Ohio Regional Districts | — | Jan-Apr19 |
| Victor F Hipsley | Coalition of Ohio Regional Districts | — | Jan-Apr19 |
| Karen A Cincione | Community Housing Network | — | Sep-Dec20 |
| Thomas Niehaus | Community Housing Network | — | Sep-Dec20 |
| County Commissioners' Association of Ohio | — | Jan-Apr19 |
| Cheryl L Subler | County Commissioners' Association of Ohio | — | Jan-Apr19 |
| County Engineers Association of Ohio | — | Sep-Dec19 |
| Dean Ringle | County Engineers Association of Ohio | — | Sep-Dec19 |
| Michael T Evans | County Engineers Association of Ohio | — | Sep-Dec19 |
| Department of Taxation | — | Jan-Apr19 |
| Ernest Massie | Department of Taxation | — | Jan-Apr19 |
| Gregory Siegfried | Department of Taxation | — | Jan-Apr19 |
| Ian Dollenmayer | Department of Taxation | — | Jan-Apr19 |
| Jeffrey McClain | Department of Taxation | — | Jan-Apr19 |
| Kenneth Frey | Department of Taxation | — | May-Aug19 |
| Matthew Chafin | Department of Taxation | — | Jan-Apr19 |
| Michael O'Leary | Department of Taxation | — | Jan-Apr19 |
| Sarah O'Leary | Department of Taxation | — | Jan-Apr19 |
| Timothy Lynch | Department of Taxation | — | Jan-Apr19 |
| Ductile Iron Pipe Research Association | — | Jan-Apr19 |
| Andrew Minton | Ductile Iron Pipe Research Association | — | Jan-Apr19 |
| Greg Bennett | Ductile Iron Pipe Research Association | — | Jan-Apr19 |
| William L Byers, IV | Ductile Iron Pipe Research Association | — | Jan-Apr19 |
| Belinda M Jones | Franklin Soil and Water Conservation District | — | Jan-Apr19 |
| Greater Cleveland Partnership | — | Sep-Dec19 |
| Martin R McGann | Greater Cleveland Partnership | — | Sep-Dec19 |
| Sante Ghetti | Greater Cleveland Partnership | — | Sep-Dec19 |
| International Council of Shopping Centers | — | May-Aug19 |
| Joshua Sanders | International Council of Shopping Centers | — | May-Aug19 |
| K&D Management, LLC. | — | Sep-Dec20 |
| Dwayne Siekman | K&D Management, LLC. | — | Sep-Dec20 |
| Pamela Siekman | K&D Management, LLC. | — | Sep-Dec20 |
| Northeast Ohio Regional Sewer District | — | Jan-Apr19 |
| Andrew Huffman | Northeast Ohio Regional Sewer District | — | Jan-Apr19 |
| Brooke A Cheney | Northeast Ohio Regional Sewer District | — | Jan-Apr19 |
| Kelly C O'Reilly | Northeast Ohio Regional Sewer District | — | Jan-Apr19 |
| Matthew S Whitehead | Northeast Ohio Regional Sewer District | — | Jan-Apr19 |
| Victor F Hipsley | Northeast Ohio Regional Sewer District | — | Jan-Apr19 |
| Ohio Association of Professional Fire Fighters | — | Jan-Apr19 |
| James P Carney | Ohio Association of Professional Fire Fighters | — | Jan-Apr19 |
| Michael Taylor | Ohio Association of Professional Fire Fighters | — | Jan-Apr19 |
| Thomas A Rave | Ohio Association of Professional Fire Fighters | — | Jan-Apr19 |
| Julia Wynn | Ohio Association of Regional Councils | — | Jan-Apr19 |
| Ohio Environmental Protection Agency | — | Jan-Apr19 |
| Gretchen Craycraft | Ohio Environmental Protection Agency | — | Jan-Apr19 |
| Laura H. Factor | Ohio Environmental Protection Agency | — | Jan-Apr19 |
| Laurie Stevenson | Ohio Environmental Protection Agency | — | Jan-Apr19 |
| Michael Guastella | Ohio Environmental Protection Agency | — | Jan-Apr19 |
| Ohio Home Builders Association, Inc | — | Jan-Apr19 |
| Kristen Sours | Ohio Home Builders Association, Inc | — | Jan-Apr19 |
| Vincent J Squillace | Ohio Home Builders Association, Inc | — | May-Aug19 |
| Ohio Municipal League | — | Jan-Apr19 |
| Brad Barger | Ohio Municipal League | — | May-Aug19 |
| Brian P Barger | Ohio Municipal League | — | May-Aug19 |
| Edward L Albright | Ohio Municipal League | — | Jan-Apr19 |
| Kent M Scarrett | Ohio Municipal League | — | Jan-Apr19 |
| Ohio Rural Development Alliance | — | Jan-Apr19 |
| Brock Miskimen | Ohio Rural Development Alliance | — | Jan-Apr19 |
| Christopher N Slagle | Ohio Rural Development Alliance | — | Jan-Apr19 |
| Gregory J Lestini | Ohio Rural Development Alliance | — | Jan-Apr19 |
| Matt Koppitch | Ohio Rural Development Alliance | — | Jan-Apr19 |
| Rachael Guastella | Ohio Rural Development Alliance | — | Sep-Dec19 |
| Ohio Rural Water Association | — | Jan-Apr19 |
| Andrew Huffman | Ohio Rural Water Association | — | Jan-Apr19 |
| Brooke A Cheney | Ohio Rural Water Association | — | Jan-Apr19 |
| Kelly C O'Reilly | Ohio Rural Water Association | — | Jan-Apr19 |
| Matthew S Whitehead | Ohio Rural Water Association | — | Jan-Apr19 |
| Victor F Hipsley | Ohio Rural Water Association | — | Jan-Apr19 |
| Ohio Township Association | — | Jan-Apr19 |
| Andrew Huffman | Ohio Township Association | — | Jan-Apr19 |
| Brooke A Cheney | Ohio Township Association | — | Jan-Apr19 |
| Heidi M Fought | Ohio Township Association | — | Jan-Apr19 |
| Kelly C O'Reilly | Ohio Township Association | — | Jan-Apr19 |
| Marisa Myers | Ohio Township Association | — | Jan-Apr19 |
| Matthew DeTemple | Ohio Township Association | — | Jan-Apr19 |
| Matthew S Whitehead | Ohio Township Association | — | Jan-Apr19 |
| Victor F Hipsley | Ohio Township Association | — | Jan-Apr19 |
| Playhouse Square Foundation | — | Jan-Apr19 |
| Belinda M Jones | Solid Waste Authority of Central Ohio | — | Jan-Apr19 |
| Dan Jones | Solid Waste Authority of Central Ohio | — | Jan-Apr19 |
| David Robinson | The Tomko Company | — | May-Aug20 |