| RRRegional Rubber Company | Lilburn | GA | — | ◇ UNVERIFIED |
 Reiss Manufacturing INC. | Englishtown | NJ | — | ◇ UNVERIFIED |
| RAReliance Aeroproducts International, INC | Mansfield | TX | — | ◇ UNVERIFIED |
| RIRemington Industries INC | Ooltewah | TN | — | ◇ UNVERIFIED |
| RLReTress, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
 Revolv Manufacturing, Inc. | Brainerd | MN | — | ◇ UNVERIFIED |
| Revolv Manufacturing, Inc. | Hoyt Lakes | MN | — | ◇ UNVERIFIED |
| RHRex Hide Industries INC | Grafton | WV | — | ◇ UNVERIFIED |
| RBRfd Beaufort INC Formerly Inflatable Survival Systems, INC | Sharon Center | OH | — | ◇ UNVERIFIED |
| RFR F Gansereit & Associates | Atlanta | GA | — | ◇ UNVERIFIED |
| RLRichard L. Lemmon | Edon | OH | — | ◇ UNVERIFIED |
| RRRichard Roder | East Hartford | CT | — | ◇ UNVERIFIED |
| RERigger Engineering, INC. | Sylmar | CA | — | ◇ UNVERIFIED |
| RRRio Rubber Track, Inc. | Temecula | CA | — | ◇ UNVERIFIED |
| RCRitus CORP | Milwaukee | WI | — | ◇ UNVERIFIED |
| RJR & J Manufacturing Company | Commerce Township | MI | — | ◇ UNVERIFIED |
| RZR&m Zamora Corporation Dba All Size Foam & Fabric | Vernon | CA | — | ◇ UNVERIFIED |
| RRRobertson Recreational Surfaces | Oakland | CA | — | ◇ UNVERIFIED |
| RDRobin Development Center (0238000164) | Berlin Twp. | OH | — | ◇ UNVERIFIED |
| RIRobin Industries Cleveland Manufacturing Division | Cleveland | OH | — | ◇ UNVERIFIED |
| RRRobinson Rubber Products CO INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| RHRodney Hunt Company | Orange | MA | — | ◇ UNVERIFIED |
| RCRogers Corporation | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| RCRogers Corporation, Bisco Materials Unit | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| RCRogers CORP Willimantic | South Windham | CT | — | ◇ UNVERIFIED |
| RERogers Elastomer Components Divison | Windham | CT | — | ◇ UNVERIFIED |
| RARo-lab American Rubber Company | Tracy | CA | — | ◇ UNVERIFIED |
| RGRoll Group | Romeoville | IL | — | ◇ UNVERIFIED |
 Roman Global Resources, Inc. | Indio | CA | — | ◇ UNVERIFIED |
| RMRoof Maintenance & Systems INC | Walpole | MA | — | ◇ UNVERIFIED |
| RRRotadyne Roll Group | Franklin | OH | — | ◇ UNVERIFIED |
| RRRotadyne Roll Group | Leola | PA | — | ◇ UNVERIFIED |
| RRRotadyne Roll Group-chino | Chino | CA | — | ◇ UNVERIFIED |
| RRRotadyne Roll Group-rotadyne Roll Group | Kansas City | MO | — | ◇ UNVERIFIED |
| RDRotation Dynamics CORP | Tualatin | OR | — | ◇ UNVERIFIED |
| RDRotation Dynamics CORP | Chicago | IL | — | ◇ UNVERIFIED |
| RTRouse Tire Fire | Vicksburg | MS | — | ◇ UNVERIFIED |
| RFRoyal Floormats | South Gate | CA | — | ◇ UNVERIFIED |
| RIR.p.r. Industries INC | Grantsville | WV | — | ◇ UNVERIFIED |
| RSRtd Seals CORP Dba Hercules Oem Group | Lake Forest | CA | — | ◇ UNVERIFIED |
| RARubber Associates INC | Barberton | OH | — | ◇ UNVERIFIED |
| RCRubbercraft Corporation | Long Beach | CA | — | ◇ UNVERIFIED |
| RDRubber Designs, LLC | Ranger | GA | — | ◇ UNVERIFIED |
| RIRubber INC. | Denver | CO | — | ◇ UNVERIFIED |
| RIRubberlite INC | Huntington | WV | — | ◇ UNVERIFIED |
| RDRubbermaid - Division of Newell Rubbermaid | Jackson | MO | — | ◇ UNVERIFIED |
| RPRubber & Plastics CO | North Branch | MI | — | ◇ UNVERIFIED |
| RRRubber Recycling Technology INC | Celina | OH | — | ◇ UNVERIFIED |
| RSRubber Stamp Champ | San Marcos | CA | — | ◇ UNVERIFIED |
| RTRubber Technologies | Piney Flats | TN | — | ◇ UNVERIFIED |
