| HCHenkel Corporation Cleveland | Warrensville Heights | OH | Chemical Manufacturing325520 | 100-499 | ◐ LIKELY ACTIVE |
| HBHeritage Bag-Fairfield | Fairfield | OH | Plastics and Rubber Products Manufacturing326111 | 100-499 | ◐ LIKELY ACTIVE |
| HMHEXPOL Middlefield | Middlefield | OH | Plastics and Rubber Products Manufacturing326299 | 100-499 | ◐ LIKELY ACTIVE |
| HWHiland Wood Products Inc. | Walnut Creek | OH | Wood Product Manufacturing321912 | 100-499 | ◐ LIKELY ACTIVE |
| HCHolmes Component Plant 538 | Sunbury | OH | Wood Product Manufacturing321214 | 100-499 | ◐ LIKELY ACTIVE |
| HCHoneywell Columbus HSEMS | Columbus | OH | Computer and Electronic Product Manufacturing334419 | 100-499 | ◐ LIKELY ACTIVE |
| HGHoneywell - Geneva | Geneva | OH | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| HIHorizons, Inc - Cleveland | Cleveland | OH | Chemical Manufacturing325992 | 100-499 | ◐ LIKELY ACTIVE |
| HPHuron Plant | Huron | OH | Chemical Manufacturing325510 | 100-499 | ◐ LIKELY ACTIVE |
| HSHydro Sidney | Sidney | OH | Transportation Equipment Manufacturing336211 | 100-499 | ◐ LIKELY ACTIVE |
| HIHynes Industries, Inc. - Youngstown, OH | Youngstown | OH | Fabricated Metal Product Manufacturing332114 | 100-499 | ◐ LIKELY ACTIVE |
| IIndependence | Independence | OH | Chemical Manufacturing325120 | 100-499 | ◐ LIKELY ACTIVE |
| IPIneos Pigment, Plant 2 | Ashtabula | OH | Chemical Manufacturing325130 | 100-499 | ◐ LIKELY ACTIVE |
| ICInnomark Communications- 420 | Fairfield | OH | Miscellaneous Manufacturing339950 | 100-499 | ◐ LIKELY ACTIVE |
| IMIntegrated Manufacturing Additive Technology Center | West Chester | OH | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| IPInternational Paper | Mt Vernon | OH | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| IOInterstate Optical Company | Mansfield | OH | Miscellaneous Manufacturing339115 | 100-499 | ◐ LIKELY ACTIVE |
| IYISC - Youngstown, OH | Youngstown | OH | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| IFITW FEG Troy Plant | Troy | OH | Machinery Manufacturing333241 | 100-499 | ◐ LIKELY ACTIVE |
| JJackson | Jackson | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| JMJAC Manufacturing Napoleon | Napoleon | OH | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
Jamestown Container Cleveland, Inc. | Macedonia | OH | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| JSJetpack Shipping - Akron Saalfield | Akron | OH | Chemical Manufacturing325411 | 100-499 | ◐ LIKELY ACTIVE |
| JGJoy Global Underground Mining LLC | Solon | OH | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| JHJ.W. Harris Co., Inc. - Mason | Mason | OH | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| KBKadant Black Clawson LLC | Lebanon | OH | Machinery Manufacturing333243 | 100-499 | ◐ LIKELY ACTIVE |
Kaiser Pickles Cincinnati | Cincinnati | OH | Food Manufacturing311421 | 100-499 | ◐ LIKELY ACTIVE |
| KPKamps Pallets - South Charleston | South Charleston | OH | Wood Product Manufacturing321920 | 100-499 | ◐ LIKELY ACTIVE |
| KAkdc/one Aromair | New Albany | OH | Chemical Manufacturing325612 | 100-499 | ◐ LIKELY ACTIVE |
| KMKeim - Mill Operations | Charm | OH | Wood Product Manufacturing321912 | 100-499 | ◐ LIKELY ACTIVE |
| KAKirchhoff Automotive | Waverly | OH | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| KTKleen Test Products - Strasburg | Strasburg | OH | Textile Mills313230 | 100-499 | ◐ LIKELY ACTIVE |
Klosterman Baking Company Kbc | Cincinnati | OH | Food Manufacturing311812 | 100-499 | ◐ LIKELY ACTIVE |
| KKomar-Groveport | Groveport | OH | Fabricated Metal Product Manufacturing332313 | 100-499 | ◐ LIKELY ACTIVE |
| KMKonkus Marble and Granite | Columbus | OH | Nonmetallic Mineral Product Manufacturing327991 | 100-499 | ◐ LIKELY ACTIVE |
| KHKraft Heinz | Fremont | OH | Food Manufacturing311421 | 100-499 | ◐ LIKELY ACTIVE |
| KKraton | Belpre | OH | Chemical Manufacturing325212 | 100-499 | ◐ LIKELY ACTIVE |
| LSLake Shore Electric Corp | Bedford | OH | Electrical Equipment, Appliance & Component Manufacturing335313 | 100-499 | ◐ LIKELY ACTIVE |
| LBLakeside Book - Ashland | Ashland | OH | Printing and Related Support Activities323117 | 100-499 | ◐ LIKELY ACTIVE |
| LLancaster | Lancaster | OH | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| L3Latitude 36 Foods 230 | Fairfield | OH | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| LCLear Corporation - Hebron | Hebron | OH | Plastics and Rubber Products Manufacturing326150 | 100-499 | ◐ LIKELY ACTIVE |
| LWLeffel Works | Springfield | OH | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| LWLena Warehouse/Distribution | Aurora | OH | Chemical Manufacturing325620 | 100-499 | ◐ LIKELY ACTIVE |
Libra Industries - Dayton | Dayton | OH | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| LOLima Oh | Lima | OH | Beverage and Tobacco Product Manufacturing312111 | 100-499 | ◐ LIKELY ACTIVE |
| LMLiquid Manufacturing Solutions LLC | Franklin | OH | Food Manufacturing311224 | 100-499 | ◐ LIKELY ACTIVE |
| LCLORD Corporation - Dayton | Dayton | OH | Transportation Equipment Manufacturing336413 | 100-499 | ◐ LIKELY ACTIVE |
| LPLubrizol Painesville Township Plant | Painesville | OH | Chemical Manufacturing325998 | 100-499 | ◐ LIKELY ACTIVE |
| LLuxfer | Cincinnati | OH | Chemical Manufacturing325180 | 100-499 | ◐ LIKELY ACTIVE |