| ZIZion Industries - Valley City | Valley City | OH | 20–99 | ◐ LIKELY ACTIVE |
| CSCertified Steel Treating CORP | Vernon | CA | — | ◐ LIKELY ACTIVE |
| EPEmber Parts, LLC | Oregon | IL | — | ◐ LIKELY ACTIVE |
| AMAlbany Metal Treating | Albany | IN | — | ◇ UNVERIFIED |
| MSMetallurgical Solutions, INC. | Providence | RI | — | ◇ UNVERIFIED |
| MMetlab | Glenside | PA | — | ◇ UNVERIFIED |
| SSSturm Steel Treating INC | Indianapolis | IN | — | ◇ UNVERIFIED |
| SMSuperior Metal Treating & Equipment INC | Kansas City | MO | — | ◇ UNVERIFIED |
| TMThermal Metal Treating INC | Aberdeen | NC | — | ◇ UNVERIFIED |
| WSWilkinson Steel Company INC | Jacksonville | FL | — | ◇ UNVERIFIED |
| 3D301 Dupree Street LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| 3H3100 Harvard Street Holdings LLC | Santa Ana | CA | — | ◇ UNVERIFIED |
| AHA-1 Heat Treating, Inc. | Ansonia | CT | — | ◇ UNVERIFIED |
| ANAalberts North Vernon | North Vernon | IN | — | ◇ UNVERIFIED |
| AMAbc Metals INC | Logansport | IN | — | ◇ UNVERIFIED |
| AFAbrasive Finishing CO | Gardena | CA | — | ◇ UNVERIFIED |
| ABAccurate Brazing of Ct, LLC | New Britain | CT | — | ◇ UNVERIFIED |
| ASAccurate Steel Treating INC | South Gate | CA | — | ◇ UNVERIFIED |
| AHAdvanced Heat Treating, INC. | Saint Marys | PA | — | ◇ UNVERIFIED |
| AAAerospace Aluminum Heat Treati | Paramount | CA | — | ◇ UNVERIFIED |
| ASAlberts Surface Technologies | Fort Smith | AR | — | ◇ UNVERIFIED |
| AHAlco Heat Treating CORP | Farmingdale | NY | — | ◇ UNVERIFIED |
| AHAlfred Heller Heat Treating CO. Site | Clifton | NJ | — | ◇ UNVERIFIED |
| APAlpine Products Mfg. CO. INC. (0857731991) | Dayton | OH | — | ◇ UNVERIFIED |
| ATAltair Technologies INC | Fremont | CA | — | ◇ UNVERIFIED |
| AEAmac Enterprises | Cleveland | OH | — | ◇ UNVERIFIED |
| AMAmerican Metallurgy, INC | High Point | NC | — | ◇ UNVERIFIED |
| AMAmerican Metal Processing | Warren | MI | — | ◇ UNVERIFIED |
| ASAnalytic Stress Relieving, INC. | Corpus Christi | TX | — | ◇ UNVERIFIED |
| AMArapahoe Metal Treating | Englewood | CO | — | ◇ UNVERIFIED |
| AAremac | Monrovia | CA | — | ◇ UNVERIFIED |
| AHAremac Heat Treating East LLC | Eastman | GA | — | ◇ UNVERIFIED |
 Astech Engineered Products | Santa Ana | CA | — | ◇ UNVERIFIED |
| AAAtmosphere Annealing, LLC | Lansing | MI | — | ◇ UNVERIFIED |
| AGAttention Getters Design INC | El Cajon | CA | — | ◇ UNVERIFIED |
| APAutomation Plating CORP | Tucson | AZ | — | ◇ UNVERIFIED |
| BHBeechner Heat Treating CO INC | Rockford | IL | — | ◇ UNVERIFIED |
| BTBlast Tech Enterprises | Raymond | ME | — | ◇ UNVERIFIED |
| BBBlue Blade Heat Treating CO | Kenilworth | NJ | — | ◇ UNVERIFIED |
| BTBluewater Thermal Solutions Chicago 1 | Northlake | IL | — | ◇ UNVERIFIED |
| BCB&m Carbide Cleaners | Crofton | KY | — | ◇ UNVERIFIED |
| BPBmt Products LLC | Madisonville | KY | — | ◇ UNVERIFIED |
| BBodycote | Columbus | OH | — | ◇ UNVERIFIED |
| BBodycote | Greensburg | IN | — | ◇ UNVERIFIED |
| BBodycote | Morristown | TN | — | ◇ UNVERIFIED |
| BBodycote | Fountain Inn | SC | — | ◇ UNVERIFIED |
| BIBodycote Inc/bodycote Thermal Processing | Los Angeles | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Lansing | MI | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Racine | WI | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Huntington Park | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Canton | MI | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Houston | TX | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Rancho Dominguez | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Westminster | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Melrose Park | IL | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Gardena | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Saint Louis | MO | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Fountain Inn | SC | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Worcester | MA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing - Athens | Athens | AL | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing Ftw | Fort Worth | TX | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing - Hays | Houston | TX | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing Highland Heights | Highland Heights | OH | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing INC | Rochester | NY | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing, INC. | Reidsville | NC | — | ◇ UNVERIFIED |
| BRBosch Rexroth CORP | Fountain Inn | SC | — | ◇ UNVERIFIED |
| BMBoykos Metal Finishing CO | Newark | NJ | — | ◇ UNVERIFIED |
| BBrazonics | Hampton | NH | — | ◇ UNVERIFIED |
| BSBurbank Steel Treating, INC | Burbank | CA | — | ◇ UNVERIFIED |
| BEBurlington Engineering Incorporated | Orange | CA | — | ◇ UNVERIFIED |
| BSBurning Systems, INC | Pueblo | CO | — | ◇ UNVERIFIED |
| CBCalifornia Brazing | Newark | CA | — | ◇ UNVERIFIED |
| CICaptech Industries LLC | Rome | NY | — | ◇ UNVERIFIED |
| CSCaz & Susan Szydlo Enterprises L.L.C. | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| CHCertified Heat Treating LLC | Springfield | OH | — | ◇ UNVERIFIED |
| CSCertified Steel Treating CORP | Los Angeles | CA | — | ◇ UNVERIFIED |
| CSCharleston Steel & Metal CO | Charleston | SC | — | ◇ UNVERIFIED |
| CSCharter Steel (0387000376) | Rising Sun | OH | — | ◇ UNVERIFIED |
| CRChemetron Railway Products Inc-true-temper Plant | Kansas City | MO | — | ◇ UNVERIFIED |
| CIChem-plate Industries INC | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| CHC&i Heat Treat, INC. | Park Row | TX | — | ◇ UNVERIFIED |
| CBCleveland Black Oxide, Inc. | Brooklyn | OH | — | ◇ UNVERIFIED |
| CPCNC Powder Coating | Ontario | CA | — | ◇ UNVERIFIED |
| CCColeman Commercial Heat Treating INC | Memphis | TN | — | ◇ UNVERIFIED |
| CSCommercial Steel Treating Corporation | Madison Hts | MI | — | ◇ UNVERIFIED |
| CHComplete Heat Treating LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| CCooperheat | Long Beach | CA | — | ◇ UNVERIFIED |
| CACrosslink Acquisition LLC | Denton | TX | — | ◇ UNVERIFIED |
| CRCurran Renewable Energy LLC | Massena | NY | — | ◇ UNVERIFIED |
| CTCurtis Thermal Processing | Machesney Park | IL | — | ◇ UNVERIFIED |
| CHCustom Heat Treat Incorporated | Kingsford | MI | — | ◇ UNVERIFIED |
| DMDarby Metal Treating, Inc. | Plainwell | MI | — | ◇ UNVERIFIED |
| DTDelta Tubular Processing | Channelview | TX | — | ◇ UNVERIFIED |
| DLDereeltech LLC | Nabb | IN | — | ◇ UNVERIFIED |
| DFDesert Fire Industries, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| DSDetroit Steel Treating CO | Pontiac | MI | — | ◇ UNVERIFIED |
| DIDippit, INC. Aka Prolong Tool | Saint Charles | IL | — | ◇ UNVERIFIED |
| DCDiversified Cryogenics INC | Burnsville | MN | — | ◇ UNVERIFIED |
| DUDongha USA INC | Pontiac | MI | — | ◇ UNVERIFIED |
| DHDriscol Holdings, LLC | Chino Valley | AZ | — | ◇ UNVERIFIED |
