| PIPrintpack Incorporated | Williamsburg | VA | — | ◇ UNVERIFIED |
| PPProcess Prototype INC | Romulus | MI | — | ◇ UNVERIFIED |
| PPProgressive Plastics, INC. | Williamstown | VT | — | ◇ UNVERIFIED |
| PLPromats Landalite | Fort Collins | CO | — | ◇ UNVERIFIED |
| PCPrototype Castings INC. | Commerce City | CO | — | ◇ UNVERIFIED |
| PCPure Castings | Austin | TX | — | ◇ UNVERIFIED |
| PIPurple Innovations, LLC | Alpine | UT | — | ◇ UNVERIFIED |
| PPPyramid Plastics, INC. | Rockford | IL | — | ◇ UNVERIFIED |
| QEQuadrant Engineering Plastic Products | Wytheville | VA | — | ◇ UNVERIFIED |
| QEQuadrant Epp Polymer Mfg Reading | Reading | PA | — | ◇ UNVERIFIED |
| QNQuality Non-ferrous Foundry | Wyoming | MI | — | ◇ UNVERIFIED |
| QCQuincy Castings, INC. | Quincy | OH | — | ◇ UNVERIFIED |
| RIRad-cam INC. | Brigham City | UT | — | ◇ UNVERIFIED |
| RTRadford Trading, LLC | Radford | VA | — | ◇ UNVERIFIED |
| RMRainbow Muffler & Brake | Sandusky | OH | — | ◇ UNVERIFIED |
| RURandstad USA | Shelbyville | TN | — | ◇ UNVERIFIED |
| RDRangers Die Casting CO | Lynwood | CA | — | ◇ UNVERIFIED |
| RIRansom Ind Lp/macungie | Macungie | PA | — | ◇ UNVERIFIED |
| RCRaychem Corporation | Menlo Park | CA | — | ◇ UNVERIFIED |
| RIRayes Inc, Dba Wheelchairs of Kansas | Hays | KS | — | ◇ UNVERIFIED |
| RPRayonier Performance Fibers LLC Marketing & Research Center | Jesup | GA | — | ◇ UNVERIFIED |
| RPRe-cy Plastics, LLC | Searcy | AR | — | ◇ UNVERIFIED |
| RDReebar Die Casting INC. | Waterville | OH | — | ◇ UNVERIFIED |
| RMReed Mfg/erie | Erie | PA | — | ◇ UNVERIFIED |
| RRReftech Real Estate Investments INC | Saint Gabriel | LA | — | ◇ UNVERIFIED |
| RIRehau INC | Sturgis | MI | — | ◇ UNVERIFIED |
| RPReinforced Plastics Industries INC | Ocoee | FL | — | ◇ UNVERIFIED |
| RMRenaissance Manufacturing Group, LLC | Waukesha | WI | — | ◇ UNVERIFIED |
| RMReplacement Metal Castings Dba Carolina Metal Castings | Hardeeville | SC | — | ◇ UNVERIFIED |
| RIReplacon, INC | Sheridan | CA | — | ◇ UNVERIFIED |
| RCResinart CORP | Costa Mesa | CA | — | ◇ UNVERIFIED |
| RTRevstone Transportation LLC | Vassar | MI | — | ◇ UNVERIFIED |
| RIRge (usa) INC. | Newport | TN | — | ◇ UNVERIFIED |
| RBRichard Brown Dba Rb Fiberglass Products | Lynwood | CA | — | ◇ UNVERIFIED |
| RCRichland Ctr Foundry CO (former) | Richland Center | WI | — | ◇ UNVERIFIED |
| RIRichwood Investment Casting, INC. | Huntington | WV | — | ◇ UNVERIFIED |
| RCRidco Casting CO. | Pawtucket | RI | — | ◇ UNVERIFIED |
| RPRiddleville Plant | Karnes City | TX | — | ◇ UNVERIFIED |
| RFRidge Foundry INC | San Leandro | CA | — | ◇ UNVERIFIED |
| RBRiver Bend Injection Molding, LLC | Victor | IA | — | ◇ UNVERIFIED |
| RTRj Tops LLC | Fort Myers | FL | — | ◇ UNVERIFIED |
| RFRmg Foundry | Mishawaka | IN | — | ◇ UNVERIFIED |
| RMR M Masonry | Richmond | VA | — | ◇ UNVERIFIED |
| RFRobinson Foundry INC | Alexander City | AL | — | ◇ UNVERIFIED |
| RMRochester Medical CORP - Site 2 | Stewartville | MN | — | ◇ UNVERIFIED |
| RCRockbridge Castings | Rockbridge | IL | — | ◇ UNVERIFIED |
| RERodgers Engineering CORP | Addison | IL | — | ◇ UNVERIFIED |
| RMRoma Marble INC | Ludlow | MA | — | ◇ UNVERIFIED |
| RARoss Aluminum Castings LLC | Sidney | OH | — | ◇ UNVERIFIED |
| RCRoss Cast Metals | Lancaster | OH | — | ◇ UNVERIFIED |
| RSRoss Sand Casting Industries, Inc., Plan | Winchester | IN | — | ◇ UNVERIFIED |
| RSRoss Sand Casting Industry, LLC | Orrville | OH | — | ◇ UNVERIFIED |
| RFRoto Form | Santa Paula | CA | — | ◇ UNVERIFIED |
| RSR S K Tool INC | Compton | CA | — | ◇ UNVERIFIED |
| RPRutgers Pressure Forming Co., INC. | New Windsor | NY | — | ◇ UNVERIFIED |
| SGSaint Gobain | Garden Grove | CA | — | ◇ UNVERIFIED |
| SSaint-gobain | Wayne | NJ | — | ◇ UNVERIFIED |
| SSaint-gobain | Clearwater | FL | — | ◇ UNVERIFIED |
| SASaint-gobain Adfors | Albion | NY | — | ◇ UNVERIFIED |
| SLSaint-gobain Life Sciences | Largo | FL | — | ◇ UNVERIFIED |
| SCSanders CO INC | Elizabeth City | NC | — | ◇ UNVERIFIED |
| SISandwich Iron Foundry | Plano | IL | — | ◇ UNVERIFIED |
| SMSather Mfg CO INC | Everett | WA | — | ◇ UNVERIFIED |
| SCScholar Craft Products, INC. Dba Melsur CORP. | Birmingham | AL | — | ◇ UNVERIFIED |
 Schuff Steel Company | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SFSchwarb Foundry | Warren | MI | — | ◇ UNVERIFIED |
| SISchwarb Industries INC | Troy | MI | — | ◇ UNVERIFIED |
| SISchweitzer-mauduit International, INC. | Richland | PA | — | ◇ UNVERIFIED |
| SDScope Display & Box Co., INC. | Cranston | RI | — | ◇ UNVERIFIED |
| SEScott Engineering and Procurement, INC. (1431004456) | Loveland | OH | — | ◇ UNVERIFIED |
| SDS Decrance Incorporated Marble Specialists Dba | Sarasota | FL | — | ◇ UNVERIFIED |
| SFSeaboard Foundry | Johnston, Town of | RI | — | ◇ UNVERIFIED |
| SBSecure Bathtub LLC | San Juan | PR | — | ◇ UNVERIFIED |
| SBSequoia Brick | Lindsay | CA | — | ◇ UNVERIFIED |
| SBService Brass & Aluminum Foundry, INC. | Wichita | KS | — | ◇ UNVERIFIED |
| SOSeven Oaks Holdings, Inc. | West Chicago | IL | — | ◇ UNVERIFIED |
| SESewer Equipment CO. of Florida, INC. | New Smyrna Beach | FL | — | ◇ UNVERIFIED |
| SGS Gager Industries INC | Jacksonville | FL | — | ◇ UNVERIFIED |
| SCShakespeare Composite Structures, LLC | Largo | FL | — | ◇ UNVERIFIED |
| SFShelco Foundries Div of Gnutti Cado USA | Jacksonville | AL | — | ◇ UNVERIFIED |
| SFSherman Foundry | Sherman | TX | — | ◇ UNVERIFIED |
| SAShipston Aluminum Technologies Incorporated | Franklin | IN | — | ◇ UNVERIFIED |
| SDSierra Design Manufacturing INC | Livermore | CA | — | ◇ UNVERIFIED |
| SMSimonz Machine Dba Hyve Technologies | San Diego | CA | — | ◇ UNVERIFIED |
| SHSlack Horner Foundry | Longmont | CO | — | ◇ UNVERIFIED |
| SMSlinger Manufacturing CO INC | Slinger | WI | — | ◇ UNVERIFIED |
| SMSlinger Mfg CO INC Plant 1 | Slinger | WI | — | ◇ UNVERIFIED |
| SLSlp Lighting | Sullivan | MO | — | ◇ UNVERIFIED |
| SASmall Assemblies INC | Chicago | IL | — | ◇ UNVERIFIED |
| SFSmith Foundry Company | Minneapolis | MN | — | ◇ UNVERIFIED |
| SCSomerset Consolidate/somerset | Somerset | PA | — | ◇ UNVERIFIED |
| SPSonoco Plastics, INC. | Chatham | NY | — | ◇ UNVERIFIED |
 Sonoco Products Company | Franklin Park | IL | — | ◇ UNVERIFIED |
| SPSonoco Protective Solutions INC | Shelbyville | KY | — | ◇ UNVERIFIED |
| SSSo Safe Equipment | Motley | MN | — | ◇ UNVERIFIED |
| SCSouthern Cast INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| SFSouthern Fiberglass INC | Tylertown | MS | — | ◇ UNVERIFIED |
| SMSouthern Mfg Fiberglass Facility | Groves | TX | — | ◇ UNVERIFIED |
| SPSouthern Plastics of Georgia, INC. | Dalton | GA | — | ◇ UNVERIFIED |
| SMSouthwest Machine & Plastic CO | Glendora | CA | — | ◇ UNVERIFIED |
