| RTRca Thompson | Circleville | OH | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| ROReconserve of Ohio (0388010003) | Upper Sandusky | OH | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| RFRecycled Fiberized Products | New Philadelphia | OH | Petroleum and Coal Products Manufacturing324199 | — | ◇ UNVERIFIED |
| RDReiter Dairy | Akron | OH | Food Manufacturing311511 | — | ◇ UNVERIFIED |
| RBReliance Business Park | Ashtabula | OH | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| RSRemelt Services INC | Cleveland | OH | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| RIRemtec International | Bowling Green | OH | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| RSRepublic Steel (slag Processing Facility) | Canton | OH | Primary Metal Manufacturing331112 | — | ◇ UNVERIFIED |
| RSRepublic Storage Systems LLC | Canton | OH | Furniture and Related Product Manufacturing337214 | — | ◇ UNVERIFIED |
| RTRepublic Technologies Intl - Massillon H | Massillon | OH | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| RPResco Products, INC. - United Refractories | Warren | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RTRetriev Technologies, INC. | Baltimore | OH | Transportation Equipment Manufacturing336370 | — | ◇ UNVERIFIED |
| RSRg Steel Wheeling LLC | Martins Ferry | OH | Fabricated Metal Product Manufacturing332114 | — | ◇ UNVERIFIED |
| RCRiceland Cabinet Corporation (0285010312) | Orrville | OH | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| RFRichelieu Foods INC - Crestar Crusts Div (0124000115) | Washington Ch | OH | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| RMRichland Moulded Brick CO | Mansfield | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RMRinker Materials - Concrete Pipe Div | Diamond | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RSRippling Stream Finishing INC | West Farmington | OH | Furniture and Related Product Manufacturing337122 | 1-19 | ◇ UNVERIFIED |
| RDRitrama Duramark (1318007355) | Cleveland | OH | Plastics and Rubber Products Manufacturing326113 | — | ◇ UNVERIFIED |
| RRRiver Recycling Industries INC | Cleveland | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| RSRjm Stamping CO | Columbus | OH | Fabricated Metal Product Manufacturing332116 | 1-19 | ◇ UNVERIFIED |
| RLR L Industries (1409030581) | Fairfield | OH | Plastics and Rubber Products Manufacturing326130 | — | ◇ UNVERIFIED |
| RTRmi Titanium CO. Sodium Plant | Ashtabula | OH | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| ROR. O. Apelt Sons INC. (1318002449) | Cleveland | OH | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| RIRobin Industries Cleveland Manufacturing Division | Cleveland | OH | Plastics and Rubber Products Manufacturing326291 | — | ◇ UNVERIFIED |
| RCRock-tenn Converting Company (1431070952)rock-tenn Converting Company (143107095 | Cincinnati | OH | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
 Rockwell Automation | Westerville | OH | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| RARohm and Haas Chemicals Llc- Cincinnati Plant | Cincinnati | OH | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| RARoss Aluminum Foundries Avon Div | Sidney | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| RBRoss Brothers Salvage INC | Mount Vernon | OH | Leather and Allied Product Manufacturing316110 | — | ◇ UNVERIFIED |
| RSRoss Sand Casting Industry, LLC | Orrville | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| RCRotary Compression Technologies, INC. | Sidney | OH | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| RKRoyal Kerckhaert Usa, INC. | Xenia | OH | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| RCRps Composites Ohio, INC. | Middletown | OH | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| RDRr Donnelley - Greenfield Div (0536010011) | Greenfield | OH | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| RIRubbermaid INC | Wooster | OH | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| RERussell Equipment, INC. | Twinsburg | OH | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| SCSaint-gobain Crystals | Solon | OH | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| SNSaint-gobain Norpro | Stow | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| SPSales Promotion Printing INC. (1318001513) | Cleveland | OH | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| SSSamuel, Son & Company (usa) INC. | Heath | OH | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| SSSamuel Steel Pickling CO * | Cleveland | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| SRSa Recycling - Canton Facility | Canton | OH | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SPSarver Paving Company (0193) (0303010193) | Ashland | OH | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| STSavant Technologies LLC - Bucyrus Lamp Plant (0317010010) | Bucyrus | OH | Electrical Equipment, Appliance & Component Manufacturing335110 | — | ◇ UNVERIFIED |
| SESchaefer Equipment CO | Warren | OH | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| SESchindler Elevator CORP | Sidney | OH | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| SPScio Packaging Company | Scio | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SMScioto Materials LLC St. Louisville (0145000400) | St. Louisville | OH | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SLScot Labs | Chagrin Falls | OH | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
