| MMMontco Manufacturing | Glenwood | AR | — | ◇ UNVERIFIED |
| MRMorse Rubber, LLC | Keokuk | IA | — | ◇ UNVERIFIED |
| MMoxness | East Troy | WI | — | ◇ UNVERIFIED |
| MPM P Industries, INC. | Tyler | TX | — | ◇ UNVERIFIED |
| MGMti Groendyk | Buchanan | VA | — | ◇ UNVERIFIED |
| MSMti Specialty Silicones | Milton | FL | — | ◇ UNVERIFIED |
| MDMueller Die Cut Solutions, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| MRMullins Rubber Products, INC. (0857770747) | Riverside | OH | — | ◇ UNVERIFIED |
| MPMy Pillow INC | Shakopee | MN | — | ◇ UNVERIFIED |
| NMNance Manufacturing, INC. | Anthony | KS | — | ◇ UNVERIFIED |
| NFNational Fiberglass | Tucson | AZ | — | ◇ UNVERIFIED |
| NONational O-ring (dba Hutchinson Seal Corp) | Downey | CA | — | ◇ UNVERIFIED |
| NNed | Essex Junction | VT | — | ◇ UNVERIFIED |
| NWNelson Williams Linings INC | Mountain Iron | MN | — | ◇ UNVERIFIED |
| NONeverleak Opco, LLC | Olive Branch | MS | — | ◇ UNVERIFIED |
| NRNewell Rubbermaid LLC | Hayfield | VA | — | ◇ UNVERIFIED |
| NCNishikawa Cooper LLC | Bremen | IN | — | ◇ UNVERIFIED |
| NCNishikawa Cooper LLC | Fort Wayne | IN | — | ◇ UNVERIFIED |
| NJNISSI & JIREH, INC. | Hollywood | FL | — | ◇ UNVERIFIED |
| NDNitto Denko Automotive Virginia | Chesapeake | VA | — | ◇ UNVERIFIED |
| NMNoffsinger Manufacturing CO INC | Menahga | MN | — | ◇ UNVERIFIED |
| NANorth American Custom Racks INC | Wixom | MI | — | ◇ UNVERIFIED |
| NANorth American Molded Products | Hartville | OH | — | ◇ UNVERIFIED |
| NANorth American Sealing Solutions, LLC | Fort Worth | TX | — | ◇ UNVERIFIED |
| NSNorth Safety Products INC | Addison | IL | — | ◇ UNVERIFIED |
| NCNott Company | Princeton | MN | — | ◇ UNVERIFIED |
| NCNott Company | Burnsville | MN | — | ◇ UNVERIFIED |
| NMNumo Manufacturing, INC. | Kaufman | TX | — | ◇ UNVERIFIED |
| OAOakcroft Associates, INC. | Monterey Park | CA | — | ◇ UNVERIFIED |
| OHObermeyer Hydro, INC | Wellington | CO | — | ◇ UNVERIFIED |
| OEOhio Elastomers Manufacturing Corporation | Perry | OH | — | ◇ UNVERIFIED |
| OGOhio Gasket & Shim Company | Akron | OH | — | ◇ UNVERIFIED |
| OPOmni Products INC | Mchenry | IL | — | ◇ UNVERIFIED |
| OSOperational Support Services LLC | Findlay | OH | — | ◇ UNVERIFIED |
| OAOregon Afscme Council 75 | Salem | OR | — | ◇ UNVERIFIED |
| OROzark Rubber Products INC. | Noel | MO | — | ◇ UNVERIFIED |
| PRPacific Rubber & Packing INC | San Carlos | CA | — | ◇ UNVERIFIED |
| PLPackRite, LLC | Columbus | OH | — | ◇ UNVERIFIED |
| PLPall Life Sciences Pr LLC | Fajardo | PR | — | ◇ UNVERIFIED |
| PMParamont Manufacturing LLC | Abingdon | VA | — | ◇ UNVERIFIED |
| PIParco INC | Ontario | CA | — | ◇ UNVERIFIED |
| PHParker Hanifin CORP | Lynchburg | VA | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Woodridge | IL | — | ◇ UNVERIFIED |
| PCParker-hannifin Corporation Dba Parker Hannifin Corporation - Seal Group, O-ring | Lebanon | TN | — | ◇ UNVERIFIED |
| PHParker Hannifin Powertrain Div | Iron Gate | VA | — | ◇ UNVERIFIED |
| PHParker Hannifin Tech Seal Div | Wilson | NC | — | ◇ UNVERIFIED |
| PSParker Seals/gnp Operations | Elgin | IL | — | ◇ UNVERIFIED |
| PTParker Tech Seal | Gothenburg | NE | — | ◇ UNVERIFIED |
| PAParma Acquisition CORP | Indianapolis | IN | — | ◇ UNVERIFIED |
| PPPar Products | Wylie | TX | — | ◇ UNVERIFIED |
| POPattons of Ca LLC | Cerritos | CA | — | ◇ UNVERIFIED |
| PIPax Industries | Costa Mesa | CA | — | ◇ UNVERIFIED |
| PEPeck Engineering | Redford | MI | — | ◇ UNVERIFIED |
| PNPeoples Natural Gas CO Llc/gibson Sta | Charleroi | PA | — | ◇ UNVERIFIED |
| PNPeoples Natural Gas CO Llc/roaring Run Sta | Apollo | PA | — | ◇ UNVERIFIED |
| PAPeru Agricultural Products, INC. /stolle | Logansport | IN | — | ◇ UNVERIFIED |
| PIPetco INC | Lake Forest | IL | — | ◇ UNVERIFIED |
| PRPhilpott Rubber, LLC | Stow | OH | — | ◇ UNVERIFIED |
 Pierce Roberts Rubber CO. | Trenton | NJ | — | ◇ UNVERIFIED |
| PRPierce-Weber Rubber Company | Trenton | NJ | — | ◇ UNVERIFIED |
| PPPipedream Products LLC | Chatsworth | CA | — | ◇ UNVERIFIED |
| PRPlumley Rubber Company | Paris | TN | — | ◇ UNVERIFIED |
| PMPmr-precision Mfg & Rubber CO INC | Ontario | CA | — | ◇ UNVERIFIED |
| PIPolyconversions, Inc. | Mahomet | IL | — | ◇ UNVERIFIED |
| PUPolyform U.S., Ltd. | Kent | WA | — | ◇ UNVERIFIED |
| PTPolymeric Technology INC Dba Poly-tek | San Leandro | CA | — | ◇ UNVERIFIED |
| PTPolymeric Technology, INC. (poly-tek) | San Leandro | CA | — | ◇ UNVERIFIED |
| PCPolyone CORP | De Forest | WI | — | ◇ UNVERIFIED |
| PRPolyonics Rubber CO INC | Poplar Grove | IL | — | ◇ UNVERIFIED |
| PRPolyonics Rubber Enterprises, Inc. | Poplar Grove | IL | — | ◇ UNVERIFIED |
| PSPoly Seal Industries | Berkeley | CA | — | ◇ UNVERIFIED |
 Polytek Development CORP | Pomona | CA | — | ◇ UNVERIFIED |
| PDPower Dynamics Gasket Company INC | South Saint Paul | MN | — | ◇ UNVERIFIED |
| PDPower Dynamics INC | Eagan | MN | — | ◇ UNVERIFIED |
| PSPower Seal Internatioanl LLC | Troy | MI | — | ◇ UNVERIFIED |
| PAPpg Aerospace Cuming Microwave | Avon | MA | — | ◇ UNVERIFIED |
 Precision Gasket Company | Saint Louis Park | MN | — | ◇ UNVERIFIED |
| PPPrecix Plant D | New Bedford | MA | — | ◇ UNVERIFIED |
| PCPreferred Compounding CORP. | Wadsworth | OH | — | ◇ UNVERIFIED |
| PSPremiere Seals | Holiday | FL | — | ◇ UNVERIFIED |
| PPPremier Products INC | Braham | MN | — | ◇ UNVERIFIED |
| PFPremium Fabricators | Conover | NC | — | ◇ UNVERIFIED |
| PCPress-seal Corporation | Fort Wayne | IN | — | ◇ UNVERIFIED |
| PSPress Seal Gasket CORP | Fort Wayne | IN | — | ◇ UNVERIFIED |
| PLPrime Laminating | North Attleboro | MA | — | ◇ UNVERIFIED |
| PIProform Industries INC | Union | IL | — | ◇ UNVERIFIED |
| PMPromed Molded Products INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| PProteor | Irvine | CA | — | ◇ UNVERIFIED |
| PLPruett, LLC | Woodland | CA | — | ◇ UNVERIFIED |
| PLPuffCuff LLC | Marietta | GA | — | ◇ UNVERIFIED |
| PAPyle Associates | Memphis | TN | — | ◇ UNVERIFIED |
| QGQsgi Green/green Energy Masters | Eatontown | NJ | — | ◇ UNVERIFIED |
| QMQuality Manufacturing INC | Winchester | KY | — | ◇ UNVERIFIED |
| QSQuality Synthetic Rubber (3i Inc) | Jasper | GA | — | ◇ UNVERIFIED |
| RIRanco Industries, Inc. | Houston | TX | — | ◇ UNVERIFIED |
| RTRapid Tech INC | Covington | GA | — | ◇ UNVERIFIED |
| RDR & D Metal Fabricators | Huntington Beach | CA | — | ◇ UNVERIFIED |
 R D Rubber Technology | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| RSReal Seal CO INC | Escondido | CA | — | ◇ UNVERIFIED |
| RVRed Valve Company | Gastonia | NC | — | ◇ UNVERIFIED |
