| OIOssi's Iron Works | Las Vegas | NV | — | ◇ UNVERIFIED |
| OSOutland Steel, INC. | Caldwell | ID | — | ◇ UNVERIFIED |
| OIOutlaw Industries, LLC | Clinton | LA | — | ◇ UNVERIFIED |
| OSOwens & Sons, INC. | Metairie | LA | — | ◇ UNVERIFIED |
| OBOzark Barge & Dock Service Inc.* | Gravois Mills | MO | — | ◇ UNVERIFIED |
| PIPacal Industries LLC | La Crosse | WI | — | ◇ UNVERIFIED |
| PEPacific Embedment Products | Adelanto | CA | — | ◇ UNVERIFIED |
| PFPacific Fabrication INC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| PRPacific Rebar INC | Ontario | CA | — | ◇ UNVERIFIED |
| PSPacific Steel Group | Bloomington | CA | — | ◇ UNVERIFIED |
| PSPacific Steel Group | Napa | CA | — | ◇ UNVERIFIED |
| PSPacific Steel Group | Benicia | CA | — | ◇ UNVERIFIED |
| PSPacific Steel Group | Bloomington | CA | — | ◇ UNVERIFIED |
| PSPacific Steel Group | Stockton | CA | — | ◇ UNVERIFIED |
| PSPacific Steel Group | Livermore | CA | — | ◇ UNVERIFIED |
| PWPacific Welding Services | Asan | GU | — | ◇ UNVERIFIED |
| PMPanhandle Machine LLC | Priest River | ID | — | ◇ UNVERIFIED |
| PMPanhandle Metal Fabrication, INC. | Pensacola | FL | — | ◇ UNVERIFIED |
| PIPAOK Industries LLC | Houston | TX | — | ◇ UNVERIFIED |
| PMParadigm Machine INC. | El Dorado | KS | — | ◇ UNVERIFIED |
| PSParadigm Steel Fabricators, INC. | Bakersfield | CA | — | ◇ UNVERIFIED |
| PSParcell Steel CORP | Fontana | CA | — | ◇ UNVERIFIED |
| PPParedes Properties LLC | Corona | CA | — | ◇ UNVERIFIED |
| PSPark Steel Company INC | Compton | CA | — | ◇ UNVERIFIED |
| PMPar Metal Products, INC. | North Arlington | NJ | — | ◇ UNVERIFIED |
| PMPartners Metalfab, LP | La Marque | TX | — | ◇ UNVERIFIED |
| PPParton & Preble INC | Warren | MI | — | ◇ UNVERIFIED |
| PCPaslin Company | Shelby Township | MI | — | ◇ UNVERIFIED |
| PMPatten's Metal Express, LLC | Franklinton | LA | — | ◇ UNVERIFIED |
| PKPaul Krivoy | Corpus Christi | TX | — | ◇ UNVERIFIED |
| PFPaul's Fabricating and Machine Works, INC. | Corpus Christi | TX | — | ◇ UNVERIFIED |
| PFPauls Fabricating and Machine Works INC. | Corpus Christi | TX | — | ◇ UNVERIFIED |
| PMPd Mechanical INC | Rialto | CA | — | ◇ UNVERIFIED |
| PPPdm Precast | Carlisle | IA | — | ◇ UNVERIFIED |
| PSPeak Steel L.l.c. | Apex | NC | — | ◇ UNVERIFIED |
| PMPeartree Manufacturing LLC | New Baltimore | MI | — | ◇ UNVERIFIED |
 Peerless Mfg. CO. | Cisco | TX | — | ◇ UNVERIFIED |
 Pegasus Steel | Ladson | SC | — | ◇ UNVERIFIED |
| PMPelican Metal Products LLC | Harrison Township | MI | — | ◇ UNVERIFIED |
| PSPenn Steel Fabrication, INC. | Bristol | PA | — | ◇ UNVERIFIED |
| PPPenz Products, INC. | Mishawaka | IN | — | ◇ UNVERIFIED |
| PEPerformance Energy Services, L.l.c. | Saint James | LA | — | ◇ UNVERIFIED |
| PEPerformance Energy Services LLC - Amelia Yard | Morgan City | LA | — | ◇ UNVERIFIED |
| PSPerformance Solutions LLC | Smyrna | TN | — | ◇ UNVERIFIED |
| PTPerformance Top Drives LLC | Three Rivers | TX | — | ◇ UNVERIFIED |
| PSPhilbrook Steel, Inc. | Chelsea | ME | — | ◇ UNVERIFIED |
| PMPhilipp Mfg CO INC | Easthampton | MA | — | ◇ UNVERIFIED |
| PHPhillips Holdings LLC | Marion | IN | — | ◇ UNVERIFIED |
| PHP & H Mining Equipment | Milwaukee | WI | — | ◇ UNVERIFIED |
| PMPhoenix Manufacturing CO | Memphis | TN | — | ◇ UNVERIFIED |
| PMPhoenix Manufacturing, INC | Ogden | UT | — | ◇ UNVERIFIED |
| PMPhoenix Manufacturing LLC | Cole Camp | MO | — | ◇ UNVERIFIED |
| PMPhoenix Metal Desigs, Inc. | Brooklyn | NY | — | ◇ UNVERIFIED |
| PPPhoenix Precision Machining | Santa Clara | CA | — | ◇ UNVERIFIED |
| PMPiedmont Metals of Burlington | Burlington | NC | — | ◇ UNVERIFIED |
| PMPiedmont Metalworks, LLC | Durham | NC | — | ◇ UNVERIFIED |
| PTPiedmont Tower, INC. | Winston Salem | NC | — | ◇ UNVERIFIED |
| PMPierce Metals INC | Bristol | TN | — | ◇ UNVERIFIED |
| PIPinchback Industrial, INC. | Beaumont | TX | — | ◇ UNVERIFIED |
| PCPine Creek Industries, LLC | Pinehurst | ID | — | ◇ UNVERIFIED |
| PMPinnacle Manufacturing | Morgan Hill | CA | — | ◇ UNVERIFIED |
| PSPinnacle Steel, INC. | Commerce City | CO | — | ◇ UNVERIFIED |
| PVPinson Valley Fabricators INC | Birmingham, Al | AL | — | ◇ UNVERIFIED |
| PAPioneer Aerospace CORP | Milton | FL | — | ◇ UNVERIFIED |
| PCPioneer Consolidated | North Oxford | MA | — | ◇ UNVERIFIED |
| PMPioneer Machine & Tooling Company | Secane | PA | — | ◇ UNVERIFIED |
| PMPioneer Manufacturing CO. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| PIPirod INC | Plymouth | IN | — | ◇ UNVERIFIED |
| PSPisani Steel Fabrication INC. | Naugatuck | CT | — | ◇ UNVERIFIED |
| PMPitt-des Moines, INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| PLPjs Lumber INC Dba Pjs Rebar | Turlock | CA | — | ◇ UNVERIFIED |
| PFP.k. Fabricating, INC. | Ferndale | MI | — | ◇ UNVERIFIED |
| PSP&k Services, L.l.c | Corpus Christi | TX | — | ◇ UNVERIFIED |
| PBPlan B Design & Fabrication, INC. | Richmond | VA | — | ◇ UNVERIFIED |
| P6Plant 62 | Houston | TX | — | ◇ UNVERIFIED |
| PIPlastec INC. | Mexico | MO | — | ◇ UNVERIFIED |
| PFPlutchak Fabricating LLC | Menominee | MI | — | ◇ UNVERIFIED |
| PLPmdf, LLC | Sardis City | AL | — | ◇ UNVERIFIED |
| PSPneu-mech Systems Manufacturing INC | Statesville | NC | — | ◇ UNVERIFIED |
| PMPnp Manufacturing INC | Arlington | WA | — | ◇ UNVERIFIED |
| PIPolaris Industries Dba Pro Armor | Riverside | CA | — | ◇ UNVERIFIED |
| PIPolystar INC. | Twinsburg | OH | — | ◇ UNVERIFIED |
| PWPoormans Welding and Fabrication, INC. | Aaronsburg | PA | — | ◇ UNVERIFIED |
| PCPopple Creek Repair and Manufacturing LLC | Foley | MN | — | ◇ UNVERIFIED |
| PPPop's Painting, INC. | Lakeland | FL | — | ◇ UNVERIFIED |
| PIPopup Industries INC | Chanute | KS | — | ◇ UNVERIFIED |
| PSPorter Steel, INC. | Peachtree City | GA | — | ◇ UNVERIFIED |
| PSPortersville Sales & Testing/portersville | Portersville | PA | — | ◇ UNVERIFIED |
| PMPort Manatee Ship Repair & Fabrication, LLC | Palmetto | FL | — | ◇ UNVERIFIED |
| PIPowerfab, INC. | Merrimack | NH | — | ◇ UNVERIFIED |
| PTPrairie Tank & Construction CO. | Pell City | AL | — | ◇ UNVERIFIED |
| PBPrecision Build Solutions, LLC | Tampa | FL | — | ◇ UNVERIFIED |
| PDPrecision Detail & Stud LLC | Saginaw | TX | — | ◇ UNVERIFIED |
| PFPrecision Fabricating Inc | Fort wayne | IN | — | ◇ UNVERIFIED |
 Precision Fabrication | Maurice | LA | — | ◇ UNVERIFIED |
| Precision Fabrication INC. | Silex | MO | — | ◇ UNVERIFIED |
| Precision Fabrication LLC | Yakima | WA | — | ◇ UNVERIFIED |
| Precision Fabrication & Welding INC | Portland | OR | — | ◇ UNVERIFIED |
| PFPrecision Fabricators CORP | Bay Shore | NY | — | ◇ UNVERIFIED |
| PFPrecision Fabricators, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
