| JEJ-m Eagle | Adel | GA | — | ◇ UNVERIFIED |
| JEJm Eagle | Wilton | IA | — | ◇ UNVERIFIED |
| JEJm Eagle | Creedmoor | NC | — | ◇ UNVERIFIED |
| JEJm Eagle | Buckhannon | WV | — | ◇ UNVERIFIED |
| JEJm Eagle Tacoma | Tacoma | WA | — | ◇ UNVERIFIED |
| JMJ-m Manufacturing Co., INC. Dba Jm Eagle | Pueblo West | CO | — | ◇ UNVERIFIED |
| JMJ-m Manufacturing Company INC | Wharton | TX | — | ◇ UNVERIFIED |
| KAKakuichi America INC | Torrance | CA | — | ◇ UNVERIFIED |
| LWLake Washington Field Homeplace Battery | Port Sulphur | LA | — | ◇ UNVERIFIED |
| LSLamson & Sessions | Erie | PA | — | ◇ UNVERIFIED |
 Lane Enterprises LLC | Wytheville | VA | — | ◇ UNVERIFIED |
| LMLf Manufacturing INC - Mai N Plant | Giddings | TX | — | ◇ UNVERIFIED |
| MIMarval Industries INC. | Mamaroneck | NY | — | ◇ UNVERIFIED |
| NPNatco Products CORP | West Warwick | RI | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP | Houston | TX | — | ◇ UNVERIFIED |
| NPNational Pipe & Plastics INC | Endicott | NY | — | ◇ UNVERIFIED |
| NCNemato Corporation | Spartanburg | SC | — | ◇ UNVERIFIED |
| NCNida Core - 3m | Port Saint Lucie | FL | — | ◇ UNVERIFIED |
| NANorth American Pipe Company | Springfield | KY | — | ◇ UNVERIFIED |
| NANorth American Pipe CORP | Litchfield | IL | — | ◇ UNVERIFIED |
| NANorth American Pipe CORP | Janesville | WI | — | ◇ UNVERIFIED |
| NANorth American Specialty Products LLC | Lodi | CA | — | ◇ UNVERIFIED |
| NANorth America Packaging CORP | Cedar City | UT | — | ◇ UNVERIFIED |
| NPNorthern Pipe Products - Fargo | Fargo | ND | — | ◇ UNVERIFIED |
| NANorwesco: a Brand of Tank Holding CORP. | Tooele | UT | — | ◇ UNVERIFIED |
| OTOmni Technologies INC | Lawrenceburg | IN | — | ◇ UNVERIFIED |
| OFOpw - Fueling Containment Systems | Smithfield | NC | — | ◇ UNVERIFIED |
| PPPacific Plastics INC | Brea | CA | — | ◇ UNVERIFIED |
| PRPhx Recycling INC | Fowler | CA | — | ◇ UNVERIFIED |
| PJPipelift Jet Stream, INC | Siloam Springs | AR | — | ◇ UNVERIFIED |
| PMPipewelders Marine, INC. | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| PIPrinsco, INC. | Jesup | IA | — | ◇ UNVERIFIED |
| RTRaceway Technology | Tacoma | WA | — | ◇ UNVERIFIED |
| RPRensselaer Plastics Company | Rensselaer | IN | — | ◇ UNVERIFIED |
| RFRiverbend Fiberglass, INC. | Dixfield | ME | — | ◇ UNVERIFIED |
| RIRobintech, Inc./national Pipe CO. | Vestal | NY | — | ◇ UNVERIFIED |
| RMRocky Mountain Colby Pipe | Denver | CO | — | ◇ UNVERIFIED |
| RARubber and Plastic Applicators Incorporated | Mobile | AL | — | ◇ UNVERIFIED |
| SPShoreline Plastics LLC | Jacksonville | FL | — | ◇ UNVERIFIED |
| SPSilver-line Plastics | Fort Pierce | FL | — | ◇ UNVERIFIED |
| SPSilver-line Plastics Corporation | Asheville | NC | — | ◇ UNVERIFIED |
| SFSoutheastern Fiberglass Products | Bamberg | SC | — | ◇ UNVERIFIED |
| TCTec Composites INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| TPThermoplastic Processes INC | Stirling | NJ | — | ◇ UNVERIFIED |
| TTThe Toro Company | Sanford | FL | — | ◇ UNVERIFIED |
| TPThompson Pipe Group - Flowtite - US Composite Pipe South LLC | Zachary | LA | — | ◇ UNVERIFIED |
| TDTiger Door LLC | Omaha | NE | — | ◇ UNVERIFIED |
| TTTitan Tube Fabricators INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| TCTpi Composites LLC - Springfield Operations | Springfield | OH | — | ◇ UNVERIFIED |
| TOTucson Outstanding Products | Tucson | AZ | — | ◇ UNVERIFIED |
