| 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 | Greensburg | IN | — | ◇ UNVERIFIED |
| BBodycote | Fountain Inn | SC | — | ◇ UNVERIFIED |
| BBodycote | Columbus | OH | — | ◇ UNVERIFIED |
| BBodycote | Morristown | TN | — | ◇ UNVERIFIED |
| BIBodycote Inc/bodycote Thermal Processing | Los Angeles | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Canton | MI | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Gardena | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Huntington Park | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Rancho Dominguez | CA | — | ◇ UNVERIFIED |
