| PPPurolator Products INC | Dexter | MO | — | ◇ UNVERIFIED |
| PPyrotek | Tulsa | OK | — | ◇ UNVERIFIED |
| QFQuality Frames, INC. | Elkhart | IN | — | ◇ UNVERIFIED |
| QIQuality Investment Castings INC | Blandon | PA | — | ◇ UNVERIFIED |
| QPQuality Product Finishing | Houston | TX | — | ◇ UNVERIFIED |
| QCQualserv CORP - Kansas City Div | Kansas City | MO | — | ◇ UNVERIFIED |
| QMQuemetco Metals LTD INC. | Irving | TX | — | ◇ UNVERIFIED |
| QCQuincy Castings, INC. | Quincy | OH | — | ◇ UNVERIFIED |
| QPQuincy Products | Quincy | MI | — | ◇ UNVERIFIED |
| RDRacer Danville Landfill | Danville | IL | — | ◇ UNVERIFIED |
| RSRacine Steel Castings Div | Racine | WI | — | ◇ UNVERIFIED |
| RTRadford Trading, LLC | Radford | VA | — | ◇ UNVERIFIED |
| RMRainbow Muffler & Brake | Sandusky | OH | — | ◇ UNVERIFIED |
| RWRalph's Welding, INC. | Russellville | AR | — | ◇ UNVERIFIED |
| RHRealbark Hunting Systems INC | Henderson | TX | — | ◇ UNVERIFIED |
| RIRebb Industries | Yadkinville | NC | — | ◇ UNVERIFIED |
| RHReda Hps | Owasso | OK | — | ◇ UNVERIFIED |
| RPReelex Packaging Solutions | Patterson | NY | — | ◇ UNVERIFIED |
| RRRemy Reman, LLC | Taylorsville | MS | — | ◇ UNVERIFIED |
| RMRettig Machine Shop, INC. | Redlands | CA | — | ◇ UNVERIFIED |
| RCRex Cut Products Incorporated | Fall River, City of | MA | — | ◇ UNVERIFIED |
| RIRex Iron & Machine Products INC | Denver | CO | — | ◇ UNVERIFIED |
| RMRhino Metals INC | Caldwell | ID | — | ◇ UNVERIFIED |
| RFRichmond Foundry | Richmond | TX | — | ◇ UNVERIFIED |
| RMRiggs Machine & Fabricating INC. | Ashland | KY | — | ◇ UNVERIFIED |
| RSRiverfalls Shop | River Falls | AL | — | ◇ UNVERIFIED |
| RFRmg Foundry | Mishawaka | IN | — | ◇ UNVERIFIED |
| RKRm Kerner CO | Erie | PA | — | ◇ UNVERIFIED |
| RFRobinson Foundry INC | Alexander City | AL | — | ◇ UNVERIFIED |
| RARoderick Arms & Tool CORP | Monett | MO | — | ◇ UNVERIFIED |
| RERoemer Electric Steel Foundry | Longview | WA | — | ◇ UNVERIFIED |
| RCRol-lift Corporation | Little Rock | AR | — | ◇ UNVERIFIED |
| RSRoss Sand Casting Industries, Inc., Plan | Winchester | IN | — | ◇ UNVERIFIED |
| RSRoss Sand Casting Industry, LLC | Orrville | OH | — | ◇ UNVERIFIED |
| RDRoto Die CO INC | Philadelphia | PA | — | ◇ UNVERIFIED |
| RCRoto-die Company, INC. | Alpharetta | GA | — | ◇ 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 |
| SSSamuel, Son & Company (usa) INC. | Heath | OH | — | ◇ UNVERIFIED |
| SMSandvik Mining & Construction CO | Bristol | VA | — | ◇ UNVERIFIED |
| SISandwich Iron Foundry | Plano | IL | — | ◇ UNVERIFIED |
| SISatterfield INC. | Alexander City | AL | — | ◇ UNVERIFIED |
| SCSchwab Corporation | Cannelton | IN | — | ◇ UNVERIFIED |
| SEScott Engineering and Procurement, INC. (1431004456) | Loveland | OH | — | ◇ UNVERIFIED |
| SEScott Equipment CO | New Prague | MN | — | ◇ UNVERIFIED |
| SEScott Equipment Company | Arlington | MN | — | ◇ UNVERIFIED |
| SFSeabee Foundry | Hampton | IA | — | ◇ UNVERIFIED |
| SFSeaboard Foundry | Johnston, Town of | RI | — | ◇ UNVERIFIED |
| SCSelectivend CORP | Waukee | IA | — | ◇ UNVERIFIED |
| SDServ-all Die & Tool CO. | Crystal Lake | IL | — | ◇ UNVERIFIED |
| SFSherman Foundry | Sherman | TX | — | ◇ UNVERIFIED |
| SESiemens Energy, INC | Geismar | LA | — | ◇ UNVERIFIED |
| SMSignet Machine INC | Grandville | MI | — | ◇ UNVERIFIED |
| SSSivyer Steel CORP | Bettendorf | IA | — | ◇ UNVERIFIED |
| SLS L Auburn INC | Auburn | NY | — | ◇ UNVERIFIED |
| SMSmiths Machine and Welding Company INC | Brookhaven | MS | — | ◇ UNVERIFIED |
| STSmiths Tubular Systems | Laconia | NH | — | ◇ UNVERIFIED |
| SMSmtc Manufacturing CORP of Massachusetts | Franklin | MA | — | ◇ UNVERIFIED |
| SISnyder Industries INC | Seattle | WA | — | ◇ UNVERIFIED |
| SCSolomon Corporation - Flandreau | Flandreau | SD | — | ◇ UNVERIFIED |
| SCSomerset Consolidate/somerset | Somerset | PA | — | ◇ UNVERIFIED |
| SPSoramatic Precision Machining | Warren | MI | — | ◇ UNVERIFIED |
| SBSotek Belrix | Hamburg | NY | — | ◇ UNVERIFIED |
| SPSouriau Paande Sequim | Sequim | WA | — | ◇ UNVERIFIED |
| SASouthern Alloy CORP | Sylacauga | AL | — | ◇ UNVERIFIED |
| SMSouthern Metal Processing Company | Oxford | AL | — | ◇ UNVERIFIED |
| SMSouthern Miscellaneous Columbia LLC | West Columbia | SC | — | ◇ UNVERIFIED |
| SISparkman Industries Plant 2 | Victoria | TX | — | ◇ UNVERIFIED |
| SFSparta Foundry INC | Sparta | MI | — | ◇ UNVERIFIED |
| SMSpartech Marine Industries Florida | Rockledge | FL | — | ◇ UNVERIFIED |
| SFSpecial Fab & Machine, INC. | Lexington | NC | — | ◇ UNVERIFIED |
| SFSpecialty Foundry | Brockton | MA | — | ◇ UNVERIFIED |
| SGSpecialty Groups INC Shop | Lost Creek | WV | — | ◇ UNVERIFIED |
| SASpectrum Aquatics | Missoula | MT | — | ◇ UNVERIFIED |
| SMSpill-stop Mfg. LLC | Melrose Park | IL | — | ◇ UNVERIFIED |
| SFSpitz Foundry INC | Hastings | NE | — | ◇ UNVERIFIED |
| SSSpraying System CO | Wheaton | IL | — | ◇ UNVERIFIED |
| SSSpraying Systems CO | Merrimack | NH | — | ◇ UNVERIFIED |
| SCSpring City Elec/spring City | Spring City | PA | — | ◇ UNVERIFIED |
| SISpringfield Iron Works INC | Chicopee | MA | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC - Millstead Way | Rochester | NY | — | ◇ UNVERIFIED |
| SCSst Custom Fabricators | Okeechobee | FL | — | ◇ UNVERIFIED |
| SPStack-on Products | Wauconda | IL | — | ◇ UNVERIFIED |
| SGStandard Golf CO | Cedar Falls | IA | — | ◇ UNVERIFIED |
 Standard Machine Works INC | Houston | TX | — | ◇ UNVERIFIED |
| STStandard Technologies & Machine CO | Wilmington | DE | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | — | ◇ UNVERIFIED |
| SIStanley Industries INC | Warrensville Hts | OH | — | ◇ UNVERIFIED |
| SBState Brass Foundry | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SLState Line Foundries INC | Roscoe | IL | — | ◇ UNVERIFIED |
| SFStaver Foundry CO | Virginia | MN | — | ◇ UNVERIFIED |
| SDSteris Distribution Center | Mentor | OH | — | ◇ UNVERIFIED |
| SCSterling Casting | Bluffton | IN | — | ◇ UNVERIFIED |
| SSSterling Steel Foundry | Sauget | IL | — | ◇ UNVERIFIED |
| SLSt. Louis Metallizing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SIStoll Industries, INC. | Abbeville | SC | — | ◇ UNVERIFIED |
| SAStrickland Agriculture Services Incorporated | Spring Hope | NC | — | ◇ UNVERIFIED |
