| POPeterbilt of Wyoming | Casper | WY | — | ◇ UNVERIFIED |
| PIPetersen Inc.- Steel Fabrication Plant | Ogden | UT | — | ◇ UNVERIFIED |
| PEPeterson Equipment Co., INC. | Katy | TX | — | ◇ UNVERIFIED |
| PAPhoenix / Anjon Building Materials, Inc. | O'Fallon | MO | — | ◇ UNVERIFIED |
| PFPilgrim Fireplace Equipment CO | Richmond | CA | — | ◇ UNVERIFIED |
| PFPilgrim Fireplace Equipment CO | Fairfield | CA | — | ◇ UNVERIFIED |
| PVPima Valve INC | Chandler | AZ | — | ◇ UNVERIFIED |
| PWPioneer Works, CO. | Houston | TX | — | ◇ UNVERIFIED |
| PAPiping Alloys, INC. | Lenexa | KS | — | ◇ UNVERIFIED |
| PNPittsburgh Nipple Works, INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| PPPontifes Properties, LLC | Rialto | CA | — | ◇ UNVERIFIED |
| PDPotential Design, INC. | Fresno | CA | — | ◇ UNVERIFIED |
| PLPrecise Lapping and Grinding Corp | Melrose Park | IL | — | ◇ UNVERIFIED |
 Precision Tool Die & Machine CO Dba Nth Works | Louisville | KY | — | ◇ UNVERIFIED |
| PVPremium Valve Services, LLC | Channelview | TX | — | ◇ UNVERIFIED |
| PGProrack Gas Products | Santa Ana | CA | — | ◇ UNVERIFIED |
| PIPro-seal, INC. | Navassa | NC | — | ◇ UNVERIFIED |
| PProteor | Irvine | CA | — | ◇ UNVERIFIED |
| RMRidgeline Manufacturing, LLC | Pillager | MN | — | ◇ UNVERIFIED |
| RVRoss Valve Mfg CO INC | Troy | NY | — | ◇ UNVERIFIED |
| RIRoyco Industries INC. | Houston | TX | — | ◇ UNVERIFIED |
| RGRuga Grinding & Mfg Corp. | Yaphank | NY | — | ◇ UNVERIFIED |
| SMSdg Motorsports, LLC | Sussex | WI | — | ◇ UNVERIFIED |
| SCSeachrome CORP | South El Monte | CA | — | ◇ UNVERIFIED |
| SWShaw Word Ind Fabricators INC / Cleveland Paint Facility | Cleveland | OK | — | ◇ UNVERIFIED |
| SVSloan Valve Company | Andover | MA | — | ◇ UNVERIFIED |
| SFSpecified Fittings INC | Bellingham | WA | — | ◇ UNVERIFIED |
| SSStar Systems, Inc./ Ohio Valve Company | Batavia | OH | — | ◇ UNVERIFIED |
| SPSterling Plumbing Group INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| SPStormcrow Production | El Segundo | CA | — | ◇ UNVERIFIED |
| SBSummers Brothers Inc. | Ontario | CA | — | ◇ UNVERIFIED |
| SPSummit Packaging Systems LLC | Keene | NH | — | ◇ UNVERIFIED |
| SCSwagelok Company | Strongsville | OH | — | ◇ UNVERIFIED |
| SMSwagelok Manufacturing Company LLC | Highland Heights | OH | — | ◇ UNVERIFIED |
| SSSypris Solutions, INC. | Louisville | KY | — | ◇ UNVERIFIED |
| TGTechnetics Group Daytona | San Carlos | CA | — | ◇ UNVERIFIED |
| TWThe Walworth CO | Houston | TX | — | ◇ UNVERIFIED |
| TMTH Manufacturing Group LLC | Sheboygan | WI | — | ◇ UNVERIFIED |
| TMTrifecta Manufacturing LLC | Livermore | CA | — | ◇ UNVERIFIED |
| TWTr Welding, INC. | Rupert | ID | — | ◇ UNVERIFIED |
| TDT.t.i. Dba Clearflow Valve | Berkeley | CA | — | ◇ UNVERIFIED |
| TFTube Forgings of America INC | Portland | OR | — | ◇ UNVERIFIED |
| TPTubular Products&stamping Division Linco | Jacksboro | TN | — | ◇ UNVERIFIED |
| TVTyco Valves & Controls | Prophetstown | IL | — | ◇ UNVERIFIED |
| UVUnion Valve Svc & Supply | Ripley | WV | — | ◇ UNVERIFIED |
| UFUnique Firestop Products, INC. | Robertsdale | AL | — | ◇ UNVERIFIED |
| UPUS Postal Service | San Mateo | CA | — | ◇ UNVERIFIED |
| VBValtek Beaumont | Beaumont | TX | — | ◇ UNVERIFIED |
| VIValtra INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| WMWaste Management of Texas Conore Hauling District | Conroe | TX | — | ◇ UNVERIFIED |
