| RCRb Custom Welding LLC | Tampa | FL | — | ◇ UNVERIFIED |
| RBR & B Grinding CO INC | Racine | WI | — | ◇ UNVERIFIED |
| RBR B H Tool Service | Abilene | TX | — | ◇ UNVERIFIED |
| RMRb Machine Works INC. | Humble | TX | — | ◇ UNVERIFIED |
| RMR.C.A. Machine & Manufacturing, Inc | Clearwater | FL | — | ◇ UNVERIFIED |
| RCrc cnc machine llc | Gastonia | NC | — | ◇ UNVERIFIED |
| RERcd Engineering | Nevada City | CA | — | ◇ UNVERIFIED |
| RMRCK Machining, LLC | Ruffin | NC | — | ◇ UNVERIFIED |
| RLRcpm LLC | Bellevue | WA | — | ◇ UNVERIFIED |
| RTRc Tool and Machine INC | Rose City | MI | — | ◇ UNVERIFIED |
| RDR & D Cnc Machining | Hamilton | MI | — | ◇ UNVERIFIED |
| RER-d Engineering - Machining LLC | Stacy | MN | — | ◇ UNVERIFIED |
| RHR.d. Hopkin Machining and Fabricating, LLC | Herminie | PA | — | ◇ UNVERIFIED |
| RDR D K Machine LLC | Wichita | KS | — | ◇ UNVERIFIED |
| RMR&D Machine, Inc. | Troy | OH | — | ◇ UNVERIFIED |
| RMRd Machine & Manufacturing | Salt Lake City | UT | — | ◇ UNVERIFIED |
| RDRealco Diversified INC. | Meadville | PA | — | ◇ UNVERIFIED |
| RMReba Machine Company | Bensenville | IL | — | ◇ UNVERIFIED |
| RMRebilt Metalizing CO | Vernon | CA | — | ◇ UNVERIFIED |
| RARebuilding and Fabricating, INC | Elyria | OH | — | ◇ UNVERIFIED |
| ROReco of Illinois, INC. | Aurora | IL | — | ◇ UNVERIFIED |
| RDRed Dog Machining INC. | Ogden | UT | — | ◇ UNVERIFIED |
| R1Redline 176 LLC | Bloomingdale | IL | — | ◇ UNVERIFIED |
| RMRedline Manufacturing, Inc. | Galesburg | MI | — | ◇ UNVERIFIED |
| RMReed Mfg/erie | Erie | PA | — | ◇ UNVERIFIED |
| RPReed Precision Machining INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| RPReelex Packaging Solutions | Patterson | NY | — | ◇ UNVERIFIED |
| RARef Alabama INC. | Greenville | AL | — | ◇ UNVERIFIED |
| RMRegency Machine, Inc. | Lubbock | TX | — | ◇ UNVERIFIED |
| RMReider Machine INC | North Branch | MN | — | ◇ UNVERIFIED |
| RAReliable Autotech USA LLC | Chenoa | IL | — | ◇ UNVERIFIED |
| RSReliable Steel Building Products INC | South Gate | CA | — | ◇ UNVERIFIED |
| RMRel Machine INC | Calumet | MI | — | ◇ UNVERIFIED |
| RMRel Machine INC | Calumet | MI | — | ◇ UNVERIFIED |
| RMRenaissance Manufacturing Group, LLC | Waukesha | WI | — | ◇ UNVERIFIED |
| RMReplacement Metal Castings Dba Carolina Metal Castings | Hardeeville | SC | — | ◇ UNVERIFIED |
| RDRepublic Diesel INC | Harrogate | TN | — | ◇ UNVERIFIED |
| RResearchtool | Guilford | CT | — | ◇ UNVERIFIED |
| RMRettig Machine Shop, INC. | Redlands | CA | — | ◇ UNVERIFIED |
| RIRev Industries LLC | Cromwell | CT | — | ◇ UNVERIFIED |
| RTRevstone Transportation LLC | Vassar | MI | — | ◇ UNVERIFIED |
| RTRev Tech Lc | Des Moines | IA | — | ◇ UNVERIFIED |
| RCRex Companies, INC | Newport News | VA | — | ◇ UNVERIFIED |
| RIRex Iron & Machine Products INC | Denver | CO | — | ◇ UNVERIFIED |
| RPReyco Precision Welding INC. | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| RHR-hive Holdings, LLC | Kenosha | WI | — | ◇ UNVERIFIED |
| RMR&H Manufacturers LLC | Edwardsville | PA | — | ◇ UNVERIFIED |
| RIRHP Investments, LLC | Wausau | WI | — | ◇ UNVERIFIED |
| RCRichland Ctr Foundry CO (former) | Richland Center | WI | — | ◇ UNVERIFIED |
| RSRichland Screw Machine Parts, INC. | Mansfield | OH | — | ◇ UNVERIFIED |
| RFRichmond Foundry | Richmond | TX | — | ◇ UNVERIFIED |
| RCRidgefield Company, LLC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| RFRidge Foundry INC | San Leandro | CA | — | ◇ UNVERIFIED |
| RMRiggs Machine & Fabricating INC. | Ashland | KY | — | ◇ UNVERIFIED |
| RARight Angle, INC. | Cedar Rapids | IA | — | ◇ UNVERIFIED |
| RMRigid Machining, LLC | Browerville | MN | — | ◇ UNVERIFIED |
| RERigo's Equipment Manufacturing, LLC | Baldwin Park | CA | — | ◇ UNVERIFIED |
| RIRija INC. | Oak Hill | WV | — | ◇ UNVERIFIED |
| RMRiley Machine Specialties INC | North Plains | OR | — | ◇ UNVERIFIED |
| RERincon Engineering Technologies | San Diego | CA | — | ◇ UNVERIFIED |
| RMRiser Machine CORP | New Lenox | IL | — | ◇ UNVERIFIED |
| RMRissco Machine, L.l.c. | Corpus Christi | TX | — | ◇ UNVERIFIED |
| RRRisse Racing Technology Incorporated | Redmond | OR | — | ◇ UNVERIFIED |
| RLRittek LLC | Richmond | KY | — | ◇ UNVERIFIED |
| RPRitter Properties Trust | Reno | NV | — | ◇ UNVERIFIED |
| RDRitz Davish Investments, LLC | Wixom | MI | — | ◇ UNVERIFIED |
| RCRiver Cities Machine LLC | Bossier City | LA | — | ◇ UNVERIFIED |
| RMRivercity Manufacturing and Machining Company | Winona | MN | — | ◇ UNVERIFIED |
| RSRiverfalls Shop | River Falls | AL | — | ◇ UNVERIFIED |
| RMRiverside Machine | Tulsa | OK | — | ◇ UNVERIFIED |
 Riverside Manufacturing INC | Ramsey | MN | — | ◇ UNVERIFIED |
| RDRiverwatch Development, LLC | Reno | NV | — | ◇ UNVERIFIED |
| RMRjc Manufacturing Services, LLC | North Huntingdon | PA | — | ◇ UNVERIFIED |
| RMRJD Machining, LLC | Homer | IL | — | ◇ UNVERIFIED |
| RJR & J Machining INC | Almont | MI | — | ◇ UNVERIFIED |
| RMR&j Manufacturing INC | Glendale | AZ | — | ◇ UNVERIFIED |
| RWRK Waterjet LLC | Gray Summit | MO | — | ◇ UNVERIFIED |
| RMR&l Machine Works | Columbus | GA | — | ◇ UNVERIFIED |
| RLR & L Machining LLC | Wichita | KS | — | ◇ UNVERIFIED |
| RERmc Engineering CO INC | Gilroy | CA | — | ◇ UNVERIFIED |
| RGRm Garrison Machining, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| RFRmg Foundry | Mishawaka | IN | — | ◇ UNVERIFIED |
| RIR.m. Industries, INC. | Purdy | MO | — | ◇ UNVERIFIED |
| RMR M Masonry | Richmond | VA | — | ◇ UNVERIFIED |
| RMRoad Machinery CO | Tucson | AZ | — | ◇ UNVERIFIED |
| RBRobert Baker | Gainesville | FL | — | ◇ UNVERIFIED |
| RJRobert J. Moran, INC. | Littleton | MA | — | ◇ UNVERIFIED |
| RMRobert M. Lane | Riverside | CA | — | ◇ UNVERIFIED |
| RERobert's Enterprises, INC. | Brookfield | MA | — | ◇ UNVERIFIED |
| RMRoberts Machine Products, LLC | West Liberty | OH | — | ◇ UNVERIFIED |
| RPRobert's Precision Engineering, Inc., a California Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| RFRob Finlon INC | Seattle | WA | — | ◇ UNVERIFIED |
| RMRobin Machine INC | Plymouth | MN | — | ◇ UNVERIFIED |
| RMRobin Machine INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| RFRobinson Foundry INC | Alexander City | AL | — | ◇ UNVERIFIED |
| RIRobinson Industrial Machining, INC | Dallas | GA | — | ◇ UNVERIFIED |
| RWRob Widiner Machining | Carpinteria | CA | — | ◇ UNVERIFIED |
| RERoca Engineering Inc. | Fontana | CA | — | ◇ UNVERIFIED |
| RMRochester Metalwerx & Manufacturing INC | Lake City | MN | — | ◇ UNVERIFIED |
| RPRochester Precision Machine INC | Rochester | MN | — | ◇ UNVERIFIED |
