| Cleveland-Cliffs Steel Corp | Coshocton | 3.4M |
| Kraton Corp | Belpre | 1.4M |
| Ohio Refining Co | Oregon | 830.0k |
| Materion Brush Inc | Elmore | 228.0k |
| Pcs Nitrogen Ohio L.p. | Lima | 163.7k |
| Cleveland-Cliffs Inc. | Middletown | 136.7k |
| Ineos Usa Llc | Addyston | 111.5k |
| Ineos Nitriles Usa Llc | Lima | 95.3k |
| Us Doe Portsmouth Gaseous Diffusion Plant | Piketon | 36.0k |
| Dupont Circleville Plant | Circleville | 30.5k |
| Titanium Metals Corp | Toronto | 27.0k |
| Vickery Environmental Inc. | Vickery | 13.6k |
| Rothenbuhler Cheesemakers | Middlefield | 12.7k |
| Austin Powder Co | Mc Arthur | 5.5k |
| Essity Operations Wausau Llc | Middletown | 4.4k |
| Trammo Nitrogen Products Inc. C/O Lemm Corp - Operat | North Bend | 4.4k |
| Mpc Plating Co Llc | Brooklyn | 500 |
| Dubois Chemicals Inc. - Sharonville Oh (50) | Cincinnati | 500 |
| Tenneco Inc | Napoleon | 402 |
| Mcgean-Rohco Inc | Cleveland | 286 |
| The Andersons Upper Sandusky Terminal | Upper Sandusky | 250 |
| Basf Corp | Elyria | 198 |
| Arcelormittal Tubular Products Usa Llc | Shelby | 177 |
| Envirite Of Ohio Inc | Canton | 127 |
| Hohman Plating & Manufacturing Inc | Dayton | 64 |
| Wampum Hardware Co. | Salesville | 52 |
| Neograf Solutions Llc | Lakewood | 37 |
| Ppg Euclid Pretreatment & Specialty Products | Euclid | 11 |
| Whirlpool Corp Marion Operations | Marion | 10 |
| Dfa Dairy Brands Fluid Llc Dba Reiter Dairy | Springfield | 5 |
| Plasman Cleveland Manufacturing | Cleveland | 5 |
| Royal Chemical Co | Macedonia | 4 |
| Heritage Thermal Services | East Liverpool | 0 |
| Ross Incineration Services Inc | Grafton | 0 |
| Honda Development & Manufacturing Of America Llc - Anna E | Anna | 0 |
| Howmet Aerospace Cleveland Works | Cuyahoga Heights | 0 |
| Visionmark Nameplate Co | New Bremen | 0 |
| Itw Bedford Wire | Bedford Heights | 0 |
| Hb Fuller Co | Blue Ash | 0 |
| Ge Engine Services Acsc/C Container Pl. | Cincinnati | 0 |
| Spring Creek | Minster | 0 |
| Apex Tool Group Llc | Dayton | 0 |
| Consolidated Metal Products | Cincinnati | 0 |
| Sika Corp-Marion Operations | Marion | 0 |
| Shepherd Chemical Co | Cincinnati | 0 |
| Spring Creek | Sidney | 0 |
| Danone Us Llc | Minster | 0 |
| Tamarack Farms Dairy | Newark | 0 |
| Owens Corning Insulating Systems Llc Newark Oh Facility | Newark | 0 |
| Micro Metal Finishing Llc | Cincinnati | 0 |
| Tremco Cpg Inc Ashland Oh | Ashland | 0 |
| Ohio Anodizing Co. Inc. | Columbus | 0 |
| Environmental Enterprises Inc | Cincinnati | 0 |
| Frito Lay Inc | Wooster | 0 |
| Plating Technology Inc. Dayton Plant | Dayton | 0 |
| Perrigo Pbm Covington Llc | Covington | 0 |
| Goodrich Aircraft Wheels & Brakes | Troy | 0 |
| Ford Motor Co - Ohio Assembly Plant | Avon Lake | 0 |
| Brewster Cheese Co Inc. | Brewster | 0 |
| Sun Chemical Corp | Maumee | 0 |
| Stoneco Plant 110 | Maumee | 0 |
| Gfs Chemicals Inc | Columbus | 0 |
| Lake City Plating Plant 2 | Ashtabula | 0 |
| Western Enterprises | Avon Lake | 0 |
| Veolia Water Technologies & Solutions - New Phila. | New Philadelphia | 0 |
| Cleveland-Cliffs Cleveland Works Llc Dba Cleveland-Cliffs Wa | Warren | 0 |
| Tipp City Purple Cow Creamery | Tipp City | 0 |
| Hyperion Materials & Technologies - Worthington | Worthington | 0 |
| Silfex Inc | Springfield | 0 |
| Charter Steel Risingsun | Risingsun | 0 |
| Honda Development & Manufacturing Of America Llc | East Liberty | 0 |
| Koch Foods Of Fairfield | Fairfield | 0 |
| Superalloy Manufacturing Solutions Corp Plant 2 & 3 | Cincinnati | 0 |
| American Craft Brewery Llc | Cincinnati | 0 |
| General Dynamics (Gd-Ots) | Springboro | 0 |
| Lake City Plating | Jefferson | 0 |
| Solvay Usa Inc | Cincinnati | 0 |
| Superalloy Manufacturing Solutions Corp Plant 1 | Cincinnati | 0 |
| Anomatic Corp - Ohio Plant Ii | New Albany | 0 |
| Anomatic Corp | Newark | 0 |
| First Solar Inc | Walbridge | 0 |
| Quanex Ig Systems | Cambridge | 0 |
| First Solar Inc | Perrysburg | 0 |
| Turbine Engine Component Technology Corp | Euclid | 0 |
| Erieview Metal Treating Co | Cleveland | 0 |
| Trelleborg Seals & Profiles Americas | Aurora | 0 |
| Pengg Wmc Llc | Bedford | 0 |
| The Euclid Chemical Co | Cleveland | 0 |
| Parker Rust-Proof Of Cleveland | Cleveland | 0 |