| PTPeoria Tube Forming CORP | East Peoria | IL | — | ◇ UNVERIFIED |
| PPPerfect Pipe & Supply CORP. | Elgin | IL | — | ◇ UNVERIFIED |
| PAPerformance Aluminum Products | Ontario | CA | — | ◇ UNVERIFIED |
| PCPerformance Contractors, INC | Plaquemine | LA | — | ◇ UNVERIFIED |
| PCPerformance Contractors, INC. - Mobile Fabrication Facility | Theodore | AL | — | ◇ UNVERIFIED |
| PSPetro Service & Supply CO INC | Houston | TX | — | ◇ UNVERIFIED |
| PPetrotech | Tampa | FL | — | ◇ UNVERIFIED |
| PHPG Holdings LLC | Alexander | ND | — | ◇ UNVERIFIED |
| PIPhoenix Industries | Juniata | NE | — | ◇ UNVERIFIED |
| PFPipe & Fabrication INC | Camden | SC | — | ◇ UNVERIFIED |
| PWPipeline Works, INC. | El Monte | CA | — | ◇ UNVERIFIED |
| PSPiping Solutions INC. | Bridgewater | NJ | — | ◇ UNVERIFIED |
| PRPlano Rod Mill | Plano | TX | — | ◇ UNVERIFIED |
| PAPlant and Flanged Equipment LLC | Blaine | MN | — | ◇ UNVERIFIED |
| PUPlasson USA | Houston | TX | — | ◇ UNVERIFIED |
| PAPortage Aluminum Foundry | Galesburg | MI | — | ◇ UNVERIFIED |
| PPPowerseal Pipeline Products Corporation | Wichita Falls | TX | — | ◇ UNVERIFIED |
| PFPrecise Forms, INC. | Bates City | MO | — | ◇ UNVERIFIED |
| PCPrecision Cut Ind - 60 Ram Drive | Hanover | PA | — | ◇ UNVERIFIED |
| PCPrecision Cutoff, LLC | Holland | OH | — | ◇ UNVERIFIED |
| PIPrecision Industrial Piping, LLC | Batavia | OH | — | ◇ UNVERIFIED |
| PPPrecision Pipe & Vessel, LLC | Commerce City | CO | — | ◇ UNVERIFIED |
| PPPrecision Piping and Fabrication LLC | Freeport | IL | — | ◇ UNVERIFIED |
| PSPrecision Spiral Pipe CO | Burleson | TX | — | ◇ UNVERIFIED |
| PTPrecision Tube | Richmond | KY | — | ◇ UNVERIFIED |
| PCProduction Castings | Missouri | MO | — | ◇ UNVERIFIED |
| PSProduct Solutions Inc. | Anaheim | CA | — | ◇ UNVERIFIED |
| PCProgress Casting Group INC - Albert Lea | Albert Lea | MN | — | ◇ UNVERIFIED |
| PCProgress Casting Group INC - Plymouth | Plymouth | MN | — | ◇ UNVERIFIED |
| PEPrompt Engineering Systems | Wathena | KS | — | ◇ UNVERIFIED |
| PLProto Labs INC | Plymouth | MN | — | ◇ UNVERIFIED |
| QFQuality Fabricators LLC | Barrington | NH | — | ◇ UNVERIFIED |
| QMQuality Mold INC. | Akron | OH | — | ◇ UNVERIFIED |
| QNQuality Non-ferrous Foundry | Wyoming | MI | — | ◇ UNVERIFIED |
| QPQuality Precast Solutions LLC | Cape Coral | FL | — | ◇ UNVERIFIED |
| QMQuest Manufacturing, Inc. | Orchard Park | NY | — | ◇ UNVERIFIED |
| QFQuincy Foundry & Pattern INC | Quincy | IL | — | ◇ UNVERIFIED |
| RNRacer-saginaw Nodular Indust | Saginaw | MI | — | ◇ UNVERIFIED |
| RFRam Fiberglass INC | Chino | CA | — | ◇ UNVERIFIED |
| RARavenna Aluminum Industries INC | Ravenna | OH | — | ◇ UNVERIFIED |
| RFRebah Fabrication INC. | Orlando | FL | — | ◇ UNVERIFIED |
| RARegen Alum Llc/yoe | Yoe | PA | — | ◇ UNVERIFIED |
| RSRelativity Space INC | Inglenook | CA | — | ◇ UNVERIFIED |
| RSRenco Systems INC | Banning | CA | — | ◇ UNVERIFIED |
| RTRennsteig Tools INC | Camarillo | CA | — | ◇ UNVERIFIED |
| RIReo Industries, INC. Dba La Aluminum Casting CO. | Hayden | ID | — | ◇ UNVERIFIED |
| REReuland Electric CO | Industry | CA | — | ◇ UNVERIFIED |
| RIRexnord Industries LLC | Brownsville | TX | — | ◇ UNVERIFIED |
| RMR&h Machine INC | Caldwell | ID | — | ◇ UNVERIFIED |
| RWRichard W Hill LLC | Portland | OR | — | ◇ UNVERIFIED |
| RMRilco Manufacturing | Houston | TX | — | ◇ UNVERIFIED |
| RRRin & Rin LLC | West Valley City | UT | — | ◇ UNVERIFIED |
| RIR&k Industrial Products INC | Richmond | CA | — | ◇ UNVERIFIED |
| RSRobert St. Croix Sculpture Studio & Foundry, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| RWRobert White | Centralia | IL | — | ◇ UNVERIFIED |
| RIRobinson Industrial | Orange | CA | — | ◇ UNVERIFIED |
| RTRochester Tube Prod LTD | Shelby Twp | MI | — | ◇ UNVERIFIED |
| RFRockford Foundries | Rockford | IL | — | ◇ UNVERIFIED |
| RHRock Hill Industrial Piping - Fabrication, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| RRRock River Fabrication | Grand Rapids | MI | — | ◇ UNVERIFIED |
| RPRodriguez Pipe and Steel, INC. | Laredo | TX | — | ◇ UNVERIFIED |
| RMRoe Machine & Pattern Works | Omaha | NE | — | ◇ UNVERIFIED |
| RSRomar Supply, Incorporated | Irving | TX | — | ◇ UNVERIFIED |
| RARoss Aluminum Foundries Avon Div | Sidney | OH | — | ◇ UNVERIFIED |
| RARoss Aluminum Foundries Ii | Sidney | OH | — | ◇ UNVERIFIED |
| RBRoss Bending Dynamics LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| RCRoss Casting & Innovation, LLC | Sidney | OH | — | ◇ UNVERIFIED |
| RWRoss Wheel Service INC | Bloomington | MN | — | ◇ UNVERIFIED |
| RQRoyer Quality Castings, Incorporated | Boyertown | PA | — | ◇ UNVERIFIED |
| RERyan Engineering Design | Pellston | MI | — | ◇ UNVERIFIED |
| RRyerson | Marshalltown | IA | — | ◇ UNVERIFIED |
| SHSaar Holdings, LLC | Magna | UT | — | ◇ UNVERIFIED |
| SPS.A.E. Pipe Welding and Fabrication L.L.C. | Brigham City | UT | — | ◇ UNVERIFIED |
| SFSamson Fabricators, LLC | Clute | TX | — | ◇ UNVERIFIED |
| SCSandwich Casting and Machine | Sandwich | IL | — | ◇ UNVERIFIED |
| SCSandwich Casting & Machine/trio Foundry INC | Montgomery | IL | — | ◇ UNVERIFIED |
| SFSanta Fe Foundry | Santa Fe | NM | — | ◇ UNVERIFIED |
| SBS & B Aluminum Foundry, INC. | West Valley City | UT | — | ◇ UNVERIFIED |
| SGSbi General & Mechanical INC. | Waterbury | NE | — | ◇ UNVERIFIED |
| SMSchadegg Mechanical INC | South Saint Paul | MN | — | ◇ UNVERIFIED |
| SPSchaffran Propeller Usa, LLC | Miami | FL | — | ◇ UNVERIFIED |
| SBSelect Build INC | Escondido | CA | — | ◇ UNVERIFIED |
| SPSelling Precision INC. | West Milford | NJ | — | ◇ UNVERIFIED |
| SFSentry Fire Protection Incorporated | York | PA | — | ◇ UNVERIFIED |
| SSSewah Studios | Marietta | OH | — | ◇ UNVERIFIED |
| SCSeybert Castings, INC. | Huntingdon Valley | PA | — | ◇ UNVERIFIED |
| SESharon Escoto | Hesperia | CA | — | ◇ UNVERIFIED |
| SCShaw Connex Incorporated | Troutville | VA | — | ◇ UNVERIFIED |
| SCShaw Constructors INC - Sw Region - Sulphur Facility | Sulphur | LA | — | ◇ UNVERIFIED |
| SFShaw Fabricators | Houston | TX | — | ◇ UNVERIFIED |
| SSShaw Shreveport Shreveport Facility | Shreveport | LA | — | ◇ UNVERIFIED |
| SSShaw Sunland Fabricators, LLC | Walker | LA | — | ◇ UNVERIFIED |
| SWShaw Word Ind. Fabricators | Tulsa | OK | — | ◇ UNVERIFIED |
| SAShipston Aluminum Technologies Incorporated | Franklin | IN | — | ◇ UNVERIFIED |
| SESiemens Energy Inc.gas Services Blades&vanes Tampa | Gibsonton | FL | — | ◇ UNVERIFIED |
| SMSimmons Manufacturing Company | Mcdonough | GA | — | ◇ UNVERIFIED |
| SMSipi Metals CORP | Chicago | IL | — | ◇ UNVERIFIED |
| SISmith-cooper International | Commerce | CA | — | ◇ UNVERIFIED |
| SSSmt Sales INC Dba Tom's Mobil Welding | Santa Paula | CA | — | ◇ UNVERIFIED |
| SSodico/shrewsbury | New Freedom | PA | — | ◇ UNVERIFIED |
