| JMJ M Manufacturing Company INC | Tacoma | WA | — | ◇ UNVERIFIED |
| JMJ-m Manufacturing Company INC | Wharton | TX | — | ◇ UNVERIFIED |
| JMJ-m Manufacturing Company INC | Umatilla | OR | — | ◇ UNVERIFIED |
| JMJ-m Manufacturing Company, INC. | Kingman | AZ | — | ◇ UNVERIFIED |
| JMJ-m Manufacturing Company, INC. | Hastings | NE | — | ◇ UNVERIFIED |
| JMJm Manufacturing Company, INC. | Cochranton | PA | — | ◇ UNVERIFIED |
| JMJm Manufacturing, INC. | Terra Bella | CA | — | ◇ UNVERIFIED |
| JMJm Manufacturing, INC. Dba Jm Eagle | Stockton | CA | — | ◇ UNVERIFIED |
| JCJms Composites (0812790457) | Springfield | OH | — | ◇ UNVERIFIED |
| JPJohn Pastor and Noemi Rodriguez, Trustees of The John Pastor and Noemi Rodriguez | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
 Johns Manville | Edison | NJ | — | ◇ UNVERIFIED |
| KAKakuichi America INC | Torrance | CA | — | ◇ UNVERIFIED |
| KCKanaflex CORP of Il | Vernon Hills | IL | — | ◇ UNVERIFIED |
| KPKn Platech | Shelbyville | IN | — | ◇ UNVERIFIED |
| KTKuri Tec Mfg. INC. | Williamsport | IN | — | ◇ UNVERIFIED |
| LSLamson & Sessions | Erie | PA | — | ◇ UNVERIFIED |
| LSLamson & Sessions | Tennille | GA | — | ◇ UNVERIFIED |
| LSLamson & Sessions | Mountain Grove | MO | — | ◇ UNVERIFIED |
 Lane Enterprises LLC | Wytheville | VA | — | ◇ UNVERIFIED |
| LTLdm Techs INC | Byesville | OH | — | ◇ UNVERIFIED |
| LPLeroy Plastics INC. | Leroy | NY | — | ◇ UNVERIFIED |
| LRLightning Rod and Pipe, LLC | Humble | TX | — | ◇ UNVERIFIED |
| MCMetaldyne CORP | Middleville | MI | — | ◇ UNVERIFIED |
| MMMilne Manufacturing | Gasport | NY | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC. | Houston | TX | — | ◇ UNVERIFIED |
| NPNatco Products CORP | West Warwick | RI | — | ◇ UNVERIFIED |
| NDNational Diversified Sales | Powder Springs | GA | — | ◇ UNVERIFIED |
| NDNational Diversified Sales | Visalia | CA | — | ◇ UNVERIFIED |
| NDNational Diversified Sales Nds | Fresno | CA | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | San Antonio | TX | — | ◇ UNVERIFIED |
| NONational Oilwell Varco, L.p. | San Antonio | TX | — | ◇ UNVERIFIED |
| NPNational Pipe and Plastics, INC. | Endicott | NY | — | ◇ UNVERIFIED |
| NPNational Pipe and Plastics Incorporated | Colfax | NC | — | ◇ UNVERIFIED |
| NPNational Pipe & Plast | Thomasville | GA | — | ◇ UNVERIFIED |
| NPNational Pipe & Plastics INC | Endicott | NY | — | ◇ UNVERIFIED |
| NNds | Fresno | CA | — | ◇ UNVERIFIED |
| NPNelson Plastics, Inc. | Paynesville | MN | — | ◇ UNVERIFIED |
| NANew Aeroclave Building | Winter Park | FL | — | ◇ UNVERIFIED |
| NINibco INC. | Greensboro | GA | — | ◇ UNVERIFIED |
| NCNida Core - 3m | Port Saint Lucie | FL | — | ◇ UNVERIFIED |
| NANortek Air Solutions LLC | Tualatin | OR | — | ◇ UNVERIFIED |
| NANorth American Pipe Company | Springfield | KY | — | ◇ UNVERIFIED |
| NANorth American Pipe CORP | Litchfield | IL | — | ◇ UNVERIFIED |
| NANorth American Pipe Corporation, Napco | Booneville | MS | — | ◇ UNVERIFIED |
| NANorth American Speciality Products | Mcpherson | KS | — | ◇ UNVERIFIED |
| NANorth American Specialty Products LLC | Lodi | CA | — | ◇ UNVERIFIED |
| NANorth Amer Pipe Corp/leola | Leola | PA | — | ◇ UNVERIFIED |
| NPNorthern Pipe Products - Fargo | Fargo | ND | — | ◇ UNVERIFIED |
| NPNorthern Pipe Products - West Fargo | West Fargo | ND | — | ◇ UNVERIFIED |
| NFNov Fgs L.p. Mineral Wells | Mineral Wells | TX | — | ◇ UNVERIFIED |
| NANupi Americas, INC. | Houston | TX | — | ◇ UNVERIFIED |
| NPNw Powerstroke Repair and Performance | Vancouver | WA | — | ◇ UNVERIFIED |
| OIOk International INC | Garden Grove | CA | — | ◇ UNVERIFIED |
| OMOldcastle Middlefield | Middlefield | OH | — | ◇ UNVERIFIED |
| OIOmnimax International, INC. | Cleveland | TN | — | ◇ UNVERIFIED |
| OFOpw - Fueling Containment Systems | Smithfield | NC | — | ◇ UNVERIFIED |
| OFOpw Fueling Containment Systems | Smithfield | NC | — | ◇ UNVERIFIED |
| OIOrozco International INC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| PPPacific Plastics INC | Brea | CA | — | ◇ UNVERIFIED |
| PWPacific Western Extruded Plast | Perris | CA | — | ◇ UNVERIFIED |
| PPPechiney Plastics Packaging Inc, Cebal D | Cypress | CA | — | ◇ UNVERIFIED |
| PNPetroflex North America | Gainesville | TX | — | ◇ UNVERIFIED |
| PRPhx Recycling INC | Fowler | CA | — | ◇ UNVERIFIED |
| PJPipelift Jet Stream, INC | Siloam Springs | AR | — | ◇ UNVERIFIED |
| PMPipewelders Marine, INC. | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| PTPiping Technology and Products, INC. | Houston | TX | — | ◇ UNVERIFIED |
| PIPlasco INC | Gurnee | IL | — | ◇ UNVERIFIED |
| PCPlastic Companies Enterprises, INC. | Lincoln | NE | — | ◇ UNVERIFIED |
| PPlasticolor | Fullerton | CA | — | ◇ UNVERIFIED |
| PTPlastic Tubing Industries of Georgia, INC. | Warrenton | GA | — | ◇ UNVERIFIED |
| PGPly Gem Pacific Windows Company | West Sacramento | CA | — | ◇ UNVERIFIED |
| PPPolyform Products Company | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| PSPoly Systems INC. | Steelville | MO | — | ◇ UNVERIFIED |
| PPPresby Plastics INC | Whitefield | NH | — | ◇ UNVERIFIED |
| PCPrime Conduit, INC. | High Springs | FL | — | ◇ UNVERIFIED |
| PCPrime Conduit Inc/upper Nazareth Twp | Nazareth | PA | — | ◇ UNVERIFIED |
| PPPrime Pvc | Marion | IN | — | ◇ UNVERIFIED |
| PIPrinsco INC | Fresno | CA | — | ◇ UNVERIFIED |
| PIPrinsco, INC | Chatsworth | IL | — | ◇ UNVERIFIED |
| PSPrinsco - Spicer | Spicer | MN | — | ◇ UNVERIFIED |
| PCProductivity California | South Gate | CA | — | ◇ UNVERIFIED |
| PPPrototype Plastics, LLC | Clearwater | FL | — | ◇ UNVERIFIED |
| PPweagle | Visalia | CA | — | ◇ UNVERIFIED |
| QFQuality Fiberglass INC | Mansfield | TX | — | ◇ UNVERIFIED |
| QTQuality Technical Molding INC. | Chino | CA | — | ◇ UNVERIFIED |
| RTRaceways Technology & Mfg. CO. | Quincy | WA | — | ◇ UNVERIFIED |
| RTRaceway Technology | Tacoma | WA | — | ◇ UNVERIFIED |
| RFRam Fiberglass INC | Chino | CA | — | ◇ UNVERIFIED |
| RCRegal Chlorinators, LLC | Hockley | TX | — | ◇ UNVERIFIED |
| RVRiver Valley Pipe LLC | Lacon | IL | — | ◇ UNVERIFIED |
| RKR K Fabrication | Anaheim | CA | — | ◇ UNVERIFIED |
| RIRobintech, Inc./national Pipe CO. | Vestal | NY | — | ◇ UNVERIFIED |
| RMRocky Mountain Colby Pipe | Denver | CO | — | ◇ UNVERIFIED |
| RWRopak West, INC. | La Mirada | CA | — | ◇ UNVERIFIED |
| RIRowe INC | Georgetown | DE | — | ◇ UNVERIFIED |
| RPRpm Plastic Molding, INC. | Anaheim | CA | — | ◇ UNVERIFIED |
| RARubber and Plastic Applicators Incorporated | Mobile | AL | — | ◇ UNVERIFIED |
| RHRyan Herco Products Corporation | Branchburg | NJ | — | ◇ UNVERIFIED |
| SFSanchez Fabrication LLC | Maricopa | AZ | — | ◇ UNVERIFIED |
| SPSanderson Pipe Corporation | Sanderson | FL | — | ◇ UNVERIFIED |
