| American Council of Engineering Companies of Ohio | — | Jan-Apr21 |
| Elizabeth Easterday-Futryk | American Council of Engineering Companies of Ohio | — | Jan-Apr21 |
| Kevin L Futryk | American Council of Engineering Companies of Ohio | — | Jan-Apr21 |
| Associated General Contractors of Ohio | — | Jan-Apr21 |
| Andrea Maclam Ashley | Associated General Contractors of Ohio | — | Jan-Apr21 |
| Butler County Transportation Improvement District | — | Sep-Dec21 |
| Andy Shifflette | Butler County Transportation Improvement District | — | Sep-Dec21 |
| Stephen E Tugend | Butler County Transportation Improvement District | — | May-Aug22 |
| City of Columbus | — | Sep-Dec21 |
| Andrew Minton | City of Columbus | — | Jan-Apr21 |
| Evelyn Kennedy | City of Columbus | — | Jan-Apr21 |
| Greg Bennett | City of Columbus | — | Jan-Apr21 |
| Stephen Nielson | City of Columbus | — | Jan-Apr21 |
| Stephen Sayre | City of Columbus | — | Sep-Dec21 |
| William L Byers, IV | City of Columbus | — | Jan-Apr21 |
| City of Toledo | — | Jan-Apr21 |
| Andrew W Herf | City of Toledo | — | Jan-Apr21 |
| Clermont County Transportation Improvement District | — | Sep-Dec21 |
| Andy Shifflette | Clermont County Transportation Improvement District | — | Sep-Dec21 |
| Coalition of Ohio Regional Districts | — | Jan-Apr21 |
| Andrew Huffman | Coalition of Ohio Regional Districts | — | Jan-Apr21 |
| Brooke A Cheney | Coalition of Ohio Regional Districts | — | Jan-Apr21 |
| Kelsey Woolard | Coalition of Ohio Regional Districts | — | Jan-Apr21 |
| Matthew S Whitehead | Coalition of Ohio Regional Districts | — | Jan-Apr21 |
| Victor F Hipsley | Coalition of Ohio Regional Districts | — | Jan-Apr21 |
| County Commissioners' Association of Ohio | — | Sep-Dec21 |
| Adam Schwiebert | County Commissioners' Association of Ohio | — | May-Aug22 |
| Jon P Honeck | County Commissioners' Association of Ohio | — | Sep-Dec21 |
| County Engineers Association of Ohio | — | Jan-Apr21 |
| Dean Ringle | County Engineers Association of Ohio | — | Jan-Apr21 |
| Michael T Evans | County Engineers Association of Ohio | — | Jan-Apr21 |
| Governor's Office | — | Jan-Apr22 |
| Aaron Crooks | Governor's Office | — | Jan-Apr22 |
| Andy Pusateri | Governor's Office | — | Jan-Apr21 |
| Bradley Bales | Governor's Office | — | Jan-Apr21 |
| Hamilton County Administration | — | Jan-Apr21 |
| Alana Tucker | Hamilton County Administration | — | Jan-Apr21 |
| Charles H Gerhardt, III | Hamilton County Administration | — | Jan-Apr21 |
| James T Benedict | Hamilton County Administration | — | Jan-Apr21 |
| Hamilton County Transportation Improvement District | — | Sep-Dec21 |
| Andy Shifflette | Hamilton County Transportation Improvement District | — | Sep-Dec21 |
| Mike Culp | Hamilton County Transportation Improvement District | — | Sep-Dec21 |
| Licking County TID | — | Sep-Dec21 |
| Andy Shifflette | Licking County TID | — | Sep-Dec21 |
| Mechanical Contractors Association of Ohio | — | Jan-Apr21 |
| Joshua Sanders | Mechanical Contractors Association of Ohio | — | Jan-Apr21 |
| Leah Pappas Porner | Mechanical Contractors Association of Ohio | — | Jan-Apr21 |
| Alex Homan | Nationwide | — | Jan-Apr21 |
| Chad Wilson | Nationwide | — | Jan-Apr21 |
| Northeast Ohio Regional Sewer District | — | Jan-Apr21 |
| Andrew Huffman | Northeast Ohio Regional Sewer District | — | Jan-Apr21 |
| Brooke A Cheney | Northeast Ohio Regional Sewer District | — | Jan-Apr21 |
| Kelsey Woolard | Northeast Ohio Regional Sewer District | — | Jan-Apr21 |
| Matthew S Whitehead | Northeast Ohio Regional Sewer District | — | Jan-Apr21 |
| Victor F Hipsley | Northeast Ohio Regional Sewer District | — | Jan-Apr21 |
| Ohio Association for Justice | — | Jan-Apr22 |
| Brad Ingraham | Ohio Association for Justice | — | Jan-Apr22 |
| Ohio Association of Chiefs of Police | — | Jan-Apr22 |
| Abraham Jacob | Ohio Association of Chiefs of Police | — | Jan-Apr22 |
| Hannah Yuhl | Ohio Association of Chiefs of Police | — | Jan-Apr22 |
| Kelly Keyes | Ohio Association of Chiefs of Police | — | May-Aug22 |
| Matthew G Kallner | Ohio Association of Chiefs of Police | — | Jan-Apr22 |
| Ohio Association of REALTORS | — | Jan-Apr22 |
| Ohio Association of School Business Officials | — | May-Aug21 |
| James Rowan | Ohio Association of School Business Officials | — | May-Aug21 |
| Katie Johnson | Ohio Association of School Business Officials | — | May-Aug21 |
| Ohio Bankers League | — | Sep-Dec22 |
| Donald Boyd | Ohio Bankers League | — | Jan-Apr21 |
| Evan Kleymeyer | Ohio Bankers League | — | Sep-Dec22 |
| Michael J Adelman | Ohio Bankers League | — | Sep-Dec22 |
| Shannon Strow | Ohio Bankers League | — | Sep-Dec22 |
| Ohio Chamber of Commerce | — | Sep-Dec21 |
| Kevin Shimp | Ohio Chamber of Commerce | — | Sep-Dec21 |
| Ohio Contractors Association | — | Jan-Apr21 |
| Michelle R Holdgreve | Ohio Contractors Association | — | Jan-Apr21 |
| Ohio Facilities Construction Commission | — | May-Aug21 |
| Jon Walden | Ohio Facilities Construction Commission | — | May-Aug21 |
| Ohio Insurance Institute | — | Jan-Apr21 |
| Michael D. Farley | Ohio Insurance Institute | — | Jan-Apr21 |
| Noah Johnson | Ohio Insurance Institute | — | Sep-Dec21 |
| Ohio Municipal League | — | May-Aug21 |
| Ashley Ringle | Ohio Municipal League | — | May-Aug21 |
| Edward L Albright | Ohio Municipal League | — | Jan-Apr21 |
| Thomas Wetmore | Ohio Municipal League | — | Sep-Dec21 |
| Ohio Rural Water Association | — | Jan-Apr21 |
| Andrew Huffman | Ohio Rural Water Association | — | Jan-Apr21 |
| Brooke A Cheney | Ohio Rural Water Association | — | Jan-Apr21 |
| Kelsey Woolard | Ohio Rural Water Association | — | Jan-Apr21 |
| Matthew S Whitehead | Ohio Rural Water Association | — | Jan-Apr21 |
| Victor F Hipsley | Ohio Rural Water Association | — | Jan-Apr21 |
| Ohio Society of Professional Engineers | — | Jan-Apr21 |
| Andrew Huffman | Ohio Society of Professional Engineers | — | Jan-Apr21 |
| Brooke A Cheney | Ohio Society of Professional Engineers | — | Jan-Apr21 |
| Holly Flanigan | Ohio Society of Professional Engineers | — | Jan-Apr21 |
| Kelsey Woolard | Ohio Society of Professional Engineers | — | Jan-Apr21 |
| Matthew S Whitehead | Ohio Society of Professional Engineers | — | Jan-Apr21 |
| Patrick Markovich | Ohio Society of Professional Engineers | — | Jan-Apr21 |
| Sydney Sanders | Ohio Society of Professional Engineers | — | Sep-Dec22 |
| Victor F Hipsley | Ohio Society of Professional Engineers | — | Jan-Apr21 |
| Brandy Spaulding | Ohio State Chiropractic Association | — | Jan-Apr21 |
| Ohio Township Association | — | Jan-Apr21 |
| Andrew Huffman | Ohio Township Association | — | Jan-Apr21 |
| Brooke A Cheney | Ohio Township Association | — | Jan-Apr21 |
| Heidi M Fought | Ohio Township Association | — | Jan-Apr21 |
| Kelsey Woolard | Ohio Township Association | — | Jan-Apr21 |
| Marisa Myers | Ohio Township Association | — | Jan-Apr21 |
| Matthew S Whitehead | Ohio Township Association | — | Jan-Apr21 |
| Victor F Hipsley | Ohio Township Association | — | Jan-Apr21 |
| Andrew Minton | Resource International, Inc | — | Jan-Apr21 |
| Stephen Nielson | Resource International, Inc | — | Jan-Apr21 |
| William L Byers, IV | Resource International, Inc | — | Jan-Apr21 |
| Warren County Transportation Improvement District | — | Sep-Dec21 |
| Andy Shifflette | Warren County Transportation Improvement District | — | Sep-Dec21 |