| PPPerformance Pipe Brownwood | Brownwood | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| PPerry | Perry | GA | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| PFPerry Fiberglass OH | Elyria | OH | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| PNPetroflex NA LLC | Gainesville | TX | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| PJPipelife Jetstream (2) | Siloam Springs | AR | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| PUPolyPipe USA | Erwin | TN | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| PPPonderosa Precision Plastics | La Porte | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| PPortage | Portage | MI | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| PCPrimary Colors, Inc | North Grafton | MA | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| PPulaski | Pulaski | TN | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| RPRidgeline Pipe Manufacturing | Eugene | OR | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| RCRPS Composites, Utah, Inc | North Salt Lake | UT | Plastics and Rubber Products Manufacturing326122 | 1-19 | ◐ LIKELY ACTIVE |
| SPSaint-Gobain PPL Mickleton | Mickleton | NJ | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| SLSalt Lake City | North Salt Lake | UT | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| SPSanderson Pipe | Houston | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| SSanford | Sanford | FL | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| SSebring | Sebring | FL | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| SSSpears Santa Paula | Santa Paula | CA | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| SRSpecialty RTP - Conoco Philips site | Stafford | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| SCSPIPP Contech Engineered Solutions LLC | Springfield | IL | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| SMStevensville, MT | Stevensville | MT | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| TPTeel Plastics-Industrial Court | Baraboo | WI | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| TMTownsend Mp LLC | Bellevue | WA | Plastics and Rubber Products Manufacturing326122 | — | ◐ LIKELY ACTIVE |
| USUnderground Supply West II LLC | Phoenix | AZ | Plastics and Rubber Products Manufacturing326122 | 1-19 | ◐ LIKELY ACTIVE |
| UAUponor - Apple Valley | Apple Valley | MN | Plastics and Rubber Products Manufacturing326122 | 500+ | ◐ LIKELY ACTIVE |
| UHUponor - Hutchinson | Hutchinson | MN | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| ULUponor - Lakeville | Lakeville | MN | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| VVicksburg | Vicksburg | MS | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| VPViking Plastics - Huntsville | Huntsville | AL | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| VPViking Plastics LLC, dba: Viking CPVC | Charlestown | IN | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| VPVTC Phoenix | Phoenix | AZ | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WMWallace Mechanical Supply INC | Cheraw | SC | Plastics and Rubber Products Manufacturing326122 | — | ◐ LIKELY ACTIVE |
| WWashougal | Washougal | WA | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WWaverly | Waverly | NY | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWestlake Pipe & Fittings | Brownsville | TN | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| WPWestlake Pipe & Fittings | Shelby Township | MI | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| WPWestlake Pipe & Fittings | Mcpherson | KS | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| WPWestlake Pipe & Fittings | Yucca | AZ | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWestlake Pipe & FIttings | Wichita Falls | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WFWichita Fiber Glass Systems | Wichita | KS | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WGWinter Garden | Winter Garden | FL | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| WPWL Plastics - Bowie | Bowie | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWL Plastics - Cedar City | Cedar City | UT | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWL Plastics - Elizabethtown | Elizabethtown | KY | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWL Plastics - Fort Worth | Fort Worth | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWL PLastics - Lubbock 1 | Lubbock | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWL PLastics - Lubbock 2 | Lubbock | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWL Plastics - Mills | Mills | WY | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWL Plastics - Rapid City | Rapid City | SD | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| WPWL Plastics - Snyder | Snyder | TX | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |