| RTRobbins Tools Die & Mfg CO INC | Henderson | TN | — | ◇ UNVERIFIED |
| RCRobeck Custom Fabrication LLC | Sweet Home | OR | — | ◇ UNVERIFIED |
| RBRobert Baker | Gainesville | FL | — | ◇ UNVERIFIED |
| RHRobert Hegdahl | Hayward | CA | — | ◇ UNVERIFIED |
| RJRobert J Donaldson, INC. | Williamstown | NJ | — | ◇ UNVERIFIED |
| RJRobert J. Moran, INC. | Littleton | MA | — | ◇ UNVERIFIED |
| RKRobert Kehl | Patterson | CA | — | ◇ UNVERIFIED |
| RLRobert Lloyd Sheet Metal INC | Independence | OR | — | ◇ UNVERIFIED |
| RLRobert Lloyd Sheet Metal INC | Salem | OR | — | ◇ UNVERIFIED |
| RMRobert Miller | Maytown | PA | — | ◇ UNVERIFIED |
| RMRobert M. Lane | Riverside | CA | — | ◇ UNVERIFIED |
| RMRobert M. Smith & Susan B. Smith | College Place | WA | — | ◇ UNVERIFIED |
| RORobert Ojeda Metalsmith INC | West Palm Beach | FL | — | ◇ UNVERIFIED |
| RPRobert Phelan | Santa Maria | 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 |
| RVRobert Vella | West Sacramento | CA | — | ◇ UNVERIFIED |
| RFRob Finlon INC | Seattle | WA | — | ◇ UNVERIFIED |
| RMRobin Machine INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| RMRobin Machine INC | Plymouth | MN | — | ◇ UNVERIFIED |
| RIRobinson Industrial Machining, INC | Dallas | GA | — | ◇ UNVERIFIED |
| RMRobinson Metal, INC. | De Pere | WI | — | ◇ UNVERIFIED |
| RSRobinson's Sheet Metal Works INC | Corcoran | CA | — | ◇ UNVERIFIED |
| RSRobotic Security Systems, INC. | Panama City | FL | — | ◇ UNVERIFIED |
| RWRob Widiner Machining | Carpinteria | CA | — | ◇ UNVERIFIED |
| RERoca Engineering Inc. | Fontana | CA | — | ◇ UNVERIFIED |
| RMRochester Machine Corporation | New Brighton | PA | — | ◇ UNVERIFIED |
| RMRochester Metalwerx & Manufacturing INC | Lake City | MN | — | ◇ UNVERIFIED |
| RPRochester Precision Machine INC | Rochester | MN | — | ◇ UNVERIFIED |
| RTRoche Tool & Die Corporation | Marlborough | MA | — | ◇ UNVERIFIED |
| RMRockbound Manufacturing INC. | Franklin Park | IL | — | ◇ UNVERIFIED |
| RMRocket Machining & Design, Inc. | Hickory Corners | MI | — | ◇ UNVERIFIED |
| RMRockhill Machine, LLC | Barberton | OH | — | ◇ UNVERIFIED |
| RDRockin D Construction, LLC | Benson | AZ | — | ◇ UNVERIFIED |
| RCRockingham-lunex Company - Former Site of | Bettendorf | IA | — | ◇ UNVERIFIED |
| RSRockingham Steel Incorporated | Harrisonburg | VA | — | ◇ UNVERIFIED |
| RCRockquality Consulting LLC | Liberty Hill | TX | — | ◇ UNVERIFIED |
| RRRock River Blacksmith LLC | Watertown | WI | — | ◇ UNVERIFIED |
| RMRocksteady Manufacturing LLC | Roseville | MI | — | ◇ UNVERIFIED |
| RARocksun Acquisitions, LLC dba Lightning Chassis | Liberty Township | OH | — | ◇ UNVERIFIED |
| RIRockwerx, INC. | Portland | ME | — | ◇ UNVERIFIED |
| RMRocky Mountain Amusements Inc | Hayden | ID | — | ◇ UNVERIFIED |
| RMRocky Mountain Electric Motors | Grand Junction | CO | — | ◇ UNVERIFIED |
| RTRocky Top Machine | West Plains | MO | — | ◇ UNVERIFIED |
| RSRocu Solution LLC | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| RPRodak Plastics CO. INC. | Hayward | CA | — | ◇ UNVERIFIED |
| RMRodewald Manufacturing Inc | Painesville | OH | — | ◇ UNVERIFIED |
| RIRodrigco Industries Inc. | Oceanside | CA | — | ◇ UNVERIFIED |
| RWRod Works | Mcallen | TX | — | ◇ UNVERIFIED |
| RPRoebuck Precision Machine, INC | Goldsboro | NC | — | ◇ UNVERIFIED |
| RCRogers Clinton Readi Mix | Clinton | IL | — | ◇ UNVERIFIED |
| RMRogers Machine Company, INC. | Louisville | KY | — | ◇ UNVERIFIED |
| RERogue Energies, LLC | Rogue River | OR | — | ◇ UNVERIFIED |
| RFRogue Fabricators Inc | Poulsbo | WA | — | ◇ UNVERIFIED |
| RVRogue Valley Finished Products INC | Grants Pass | OR | — | ◇ UNVERIFIED |
| RPRohn Products, LLC | Peoria | IL | — | ◇ UNVERIFIED |
| RIRohr Industries, INC. | Saint Marys | PA | — | ◇ UNVERIFIED |
| RWRolando's Welding & Fabricating | Robstown | TX | — | ◇ UNVERIFIED |
 Rolar Manufacturing Corporation | Muskegon Heights | MI | — | ◇ UNVERIFIED |
| RSRolled Shapes & Engineering INC | Fraser | MI | — | ◇ UNVERIFIED |
| RDRoller Die & Forming | Green Cove Springs | FL | — | ◇ UNVERIFIED |
| RFRoll Forming Corporation | Farrell | PA | — | ◇ UNVERIFIED |
| RJRollin J Lobaugh, INC | South San Francisco | CA | — | ◇ UNVERIFIED |
| RCR-o-m Corporation Dba Prime Design | West Saint Paul | MN | — | ◇ UNVERIFIED |
| RMRome Metal Fabricators | Rome | GA | — | ◇ UNVERIFIED |
| RERomero's Engineering | Santa Ana | CA | — | ◇ UNVERIFIED |
| RERomero's Engineering INC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| RSRomero Steel Company, INC. | Melrose Park | IL | — | ◇ UNVERIFIED |
| RRomfab | North Hollywood | CA | — | ◇ UNVERIFIED |
| RLRonald Lemus | Los Angeles | CA | — | ◇ UNVERIFIED |
| RMRonal Machine LLC | Kent | OH | — | ◇ UNVERIFIED |
| RGRon Grob Company | Johnstown | CO | — | ◇ UNVERIFIED |
| RMRonson Machine & Manufacturing, INC. | Independence | MO | — | ◇ UNVERIFIED |
| RWRon White Industries, Inc.* | Willow Springs | MO | — | ◇ UNVERIFIED |
| RDRoofing Development CO Inc, & | Corona | CA | — | ◇ UNVERIFIED |
| RTRoof Top Metal Products INC | Lodi | CA | — | ◇ UNVERIFIED |
| RSRooftop Systems INC. | Carrollton | TX | — | ◇ UNVERIFIED |
| RPRoosevelt Products, LLC | Delaware | OH | — | ◇ UNVERIFIED |
| RARosalex Auto Repair | Indio | CA | — | ◇ UNVERIFIED |
 Rosco Manufacturing LLC | Providence | RI | — | ◇ UNVERIFIED |
 Rose Metal Industries INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| RMRose Metal Works, INC | Chicopee | MA | — | ◇ UNVERIFIED |
| RTRose - Tec. INC. | Asheboro | NC | — | ◇ UNVERIFIED |
| RSRosey Steel Rule Die Co., INC. | Dalton | GA | — | ◇ UNVERIFIED |
| RARoskam Automatic Machinery, INC. | Birmingham | AL | — | ◇ UNVERIFIED |
| RLRoss-hx LLC | Middletown | OH | — | ◇ UNVERIFIED |
| RURossville Universal Machine & Welding Co., INC. | Rossville | GA | — | ◇ UNVERIFIED |
| RCRotary Corporation, INC. | Glennville | GA | — | ◇ UNVERIFIED |
| RWRothe Welding, INC. | Saugerties | NY | — | ◇ UNVERIFIED |
| RCRoto-die Company INC | Anaheim | CA | — | ◇ UNVERIFIED |
| RHRoto Hammer Industries, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| RDRotometrics; Dba Maxcess | Lombard | IL | — | ◇ UNVERIFIED |
| RIRotom, INC. | Plainview | TX | — | ◇ UNVERIFIED |
| RMRoussey Machining Solutions LLC | Bronson | MI | — | ◇ UNVERIFIED |
| RMRowe Manufacturing, INC. | Sanford | FL | — | ◇ UNVERIFIED |
| RWRowe's Welding | Grand Island | NE | — | ◇ UNVERIFIED |
| RMRow Manufacturing | Athens | AL | — | ◇ UNVERIFIED |
| RIRoyale INC. | Calumet | MI | — | ◇ UNVERIFIED |
| RMRoyal Maple Metal Sales LLC | Mc Bain | MI | — | ◇ UNVERIFIED |
