| MMMull Machine CO | Wheeling | WV | — | ◇ UNVERIFIED |
| MPMulti-spec Painting INC | Gardena | CA | — | ◇ UNVERIFIED |
| MGMurray Grinding-dearborn Hgts | Dearborn Heights | MI | — | ◇ UNVERIFIED |
| NANapa Auto Parts Machine Shop | Plymouth | IN | — | ◇ UNVERIFIED |
| NMNash Manufacturing & Grinding Services | Springfield | MA | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP | Lafayette | LA | — | ◇ UNVERIFIED |
| NFNatl Fabricators & Mach/north East Plt | North East | PA | — | ◇ UNVERIFIED |
| NINeo Industries (weirton) INC. | Weirton | WV | — | ◇ UNVERIFIED |
| NENew England Expert Technologies Ne Xt | Greenfield | MA | — | ◇ UNVERIFIED |
| NWNfm Welding Engineers INC | Massillon | OH | — | ◇ UNVERIFIED |
| NENorthern Engineering Company LLC | Superior | WI | — | ◇ UNVERIFIED |
| NPNorth Penn Area 6 | Lansdale | PA | — | ◇ UNVERIFIED |
| NMNrg Maintenance Services | Houston | TX | — | ◇ UNVERIFIED |
| OTOdm Tool & Manufacturing CO | Mccook | IL | — | ◇ UNVERIFIED |
| OCOmco Cast Metals, INC. | Winchester | IN | — | ◇ UNVERIFIED |
| OLOpen Loop Energy - Nichols Facility | Safford | AZ | — | ◇ UNVERIFIED |
| OOOrchid Orthopedics Solutions | Santa Ana | CA | — | ◇ UNVERIFIED |
| OUOsg USA INC | Parma | OH | — | ◇ UNVERIFIED |
| OSOtten Screw Products Co-otten Screw Products CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| ODOzark Die Casting | Saint Clair | MO | — | ◇ UNVERIFIED |
| PMPadnos Manufacturing INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| PMPalfinger Marine USA INC | Portsmouth | VA | — | ◇ UNVERIFIED |
| PAPall Aeropower CORP Fort Myers | Fort Myers | FL | — | ◇ UNVERIFIED |
| PMParagon Machine Company, INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Hpd | Marysville | OH | — | ◇ UNVERIFIED |
| PEPayne Engineering & Fabrications | Canton | MA | — | ◇ UNVERIFIED |
| PTPeacock Tool & Engineering | Spring Valley | CA | — | ◇ UNVERIFIED |
| PCPeddinghaus CORP of Sc | Andrews | SC | — | ◇ UNVERIFIED |
| PKPelletizer Knives | Houston | TX | — | ◇ UNVERIFIED |
| PIPemco INC | Pascagoula | MS | — | ◇ UNVERIFIED |
| PTPems Tool & Machine INC | Little Falls | NY | — | ◇ UNVERIFIED |
| PHPeters Heat Treating | Meadville | PA | — | ◇ UNVERIFIED |
| PNPeterson & Nash Incorporated | Hanover | MA | — | ◇ UNVERIFIED |
| PAPhillips Aerospace | City of Industry | CA | — | ◇ UNVERIFIED |
| PTPike Tool & Grinding Incorporated | Colorado Springs | CO | — | ◇ UNVERIFIED |
| PTP-k Tool & Manufacturing Company | Santa Teresa | NM | — | ◇ UNVERIFIED |
| PTP-k Tool Mfg CO | Richmond | KY | — | ◇ UNVERIFIED |
| PEPlant Engineering and Maintenance - Oxford Machine and Fabrication | Oxford | AL | — | ◇ UNVERIFIED |
| PPPlastic Power Extrusions CORP | Schiller Park | IL | — | ◇ UNVERIFIED |
| PAPlumbing and Mechanical Contractors | Milwaukie | OR | — | ◇ UNVERIFIED |
| PMPmc Mercury | White House | TN | — | ◇ UNVERIFIED |
| PPPonam Precision Gages | Glendale | CA | — | ◇ UNVERIFIED |
| PLPort Logistics | Rancho Dominguez | CA | — | ◇ UNVERIFIED |
| PPPositive Prototype Industries | Fraser | MI | — | ◇ UNVERIFIED |
| PPP P Mfg CO INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| PRPrecise Rotary Die INC | Schiller Park | IL | — | ◇ UNVERIFIED |
| PDPrecision Dormer LLC | Crystal Lake | IL | — | ◇ UNVERIFIED |
 Precision Grinding, INC. | Bessemer | AL | — | ◇ UNVERIFIED |
| PMPrecision Machine Products INC | Gastonia | NC | — | ◇ UNVERIFIED |
| PTPrecision Tool & Die CO INC | Oil City | PA | — | ◇ UNVERIFIED |
| PTPrecision Tools and Mold LLC | Ironwood | MI | — | ◇ UNVERIFIED |
| PTPrecision Twist Drill CO - Rhinelander | Rhinelander | WI | — | ◇ UNVERIFIED |
| PSPreform Specialties/derry Plt | Blairsville | PA | — | ◇ UNVERIFIED |
| PRPress Room Equipment CO LLC | Springfield | MO | — | ◇ UNVERIFIED |
| PTProduction Tooling CO | Memphis | TN | — | ◇ UNVERIFIED |
| PSPro Stamp LLC | Walker | MI | — | ◇ UNVERIFIED |
| PProtolabs | Minneapolis | MN | — | ◇ UNVERIFIED |
| PLPrototech Laser-chesterfield | Chesterfield | MI | — | ◇ UNVERIFIED |
| PPPurolator Products INC | Dexter | MO | — | ◇ UNVERIFIED |
| QFQuick Fab INC | Middletown | RI | — | ◇ UNVERIFIED |
| RIRebb Industries | Yadkinville | NC | — | ◇ UNVERIFIED |
| RHReda Hps | Owasso | OK | — | ◇ UNVERIFIED |
| RPReelex Packaging Solutions | Patterson | NY | — | ◇ UNVERIFIED |
| RCRegal Cutting Tools Div Yg-1 CO LTD | South Beloit | IL | — | ◇ UNVERIFIED |
| RIRegal Ind Donora Plt | Donora | PA | — | ◇ UNVERIFIED |
| RFReliable Forge Die & Eng | Fraser | MI | — | ◇ UNVERIFIED |
| RMRettig Machine Shop, INC. | Redlands | CA | — | ◇ UNVERIFIED |
| RIRex Iron & Machine Products INC | Denver | CO | — | ◇ UNVERIFIED |
| RJRichardson Joyce | Newbury Park | CA | — | ◇ UNVERIFIED |
| RMRiggs Machine & Fabricating INC. | Ashland | KY | — | ◇ UNVERIFIED |
| RFRippy Fred R INC | Whittier | CA | — | ◇ UNVERIFIED |
| RCRiver City Rollform INC | Norton Shores | MI | — | ◇ UNVERIFIED |
| RSRiverfalls Shop | River Falls | AL | — | ◇ UNVERIFIED |
| RKRm Kerner CO | Erie | PA | — | ◇ UNVERIFIED |
| RARoderick Arms & Tool CORP | Monett | MO | — | ◇ UNVERIFIED |
| RDRoto Die CO INC | Philadelphia | PA | — | ◇ UNVERIFIED |
| RCRoto-die Company, INC. | Alpharetta | GA | — | ◇ UNVERIFIED |
| RPRoyal Products | Hauppauge | NY | — | ◇ UNVERIFIED |
| RIRpn INC | Morristown | TN | — | ◇ UNVERIFIED |
 Rti Remmele Engineering Big Lake - Plant 40 | Big Lake | MN | — | ◇ UNVERIFIED |
| RMRushford Machine & Manufacturing CO | Rushford | NY | — | ◇ UNVERIFIED |
| RTRxc Technologies | San Jose | CA | — | ◇ UNVERIFIED |
| SESaeilo Enterprises | Worcester, City of | MA | — | ◇ UNVERIFIED |
| SGSaint Gobain Abrasives INC | Romulus | MI | — | ◇ UNVERIFIED |
| SFSanta Fe Mold CO | Whittier | CA | — | ◇ UNVERIFIED |
| SISarcol INC | Chicago | IL | — | ◇ UNVERIFIED |
| SISatterfield INC. | Alexander City | AL | — | ◇ UNVERIFIED |
| STSchwarzkopf Technologies CORP | Franklin | MA | — | ◇ UNVERIFIED |
| SCScientific Cutting Tools | Simi Valley | CA | — | ◇ UNVERIFIED |
| SJScully Jones CORP | Chicago | IL | — | ◇ UNVERIFIED |
| SSSetco Sales Company | Novi | MI | — | ◇ UNVERIFIED |
| STSgs Tool CO Drill Division | Cuyahoga Falls | OH | — | ◇ UNVERIFIED |
| SESiemens Energy, INC | Geismar | LA | — | ◇ UNVERIFIED |
| SMSignet Machine INC | Grandville | MI | — | ◇ UNVERIFIED |
| SMSii Megadiamond | Provo | UT | — | ◇ UNVERIFIED |
| SMSmiths Machine and Welding Company INC | Brookhaven | MS | — | ◇ UNVERIFIED |
| SISnyder Industries INC | Seattle | WA | — | ◇ UNVERIFIED |
| SPSoramatic Precision Machining | Warren | MI | — | ◇ UNVERIFIED |
| SBSotek Belrix | Hamburg | NY | — | ◇ UNVERIFIED |
| SISparkman Industries Plant 2 | Victoria | TX | — | ◇ UNVERIFIED |
