| ASAalberts Surface Technologies Ab, INC. | Greenville | SC | — | ● ACTIVE |
Aalberts Surface Technologies Livonia, INC. | Livonia | MI | — | ● ACTIVE |
| BTB4c Technologies INC | Palm City | FL | — | ● ACTIVE |
| BHBennett Heat Treating and Brazing Co., INC. | Newark | NJ | 20–99 | ● ACTIVE |
Bodycote Thermal Processing INC | Indianapolis | IN | — | ● ACTIVE |
Bodycote Thermal Processing INC | Columbus | OH | — | ● ACTIVE |
Bodycote Thermal Processing INC | Arlington | TX | — | ● ACTIVE |
Bodycote Thermal Processing INC | Haltom City | TX | — | ● ACTIVE |
Bodycote Thermal Processing INC | Fountain Inn | SC | — | ● ACTIVE |
Bodycote Thermal Processing, INC. | Dallas | TX | — | ● ACTIVE |
Bodycote Thermal Processing, INC. | Grand Rapids | MI | — | ● ACTIVE |
Bodycote Thermal Processsing, INC. | Fairfield | OH | — | ● ACTIVE |
Bodycote Usa, INC. | Dallas | TX | — | ● ACTIVE |
Braddock Metallurgical Aerospace Services, INC. | Boynton Beach | FL | — | ● ACTIVE |
Dip Braze, INC | Sun Valley | CA | — | ● ACTIVE |
Empowering Technologies, INC. | Trussville | AL | — | ● ACTIVE |
Exotic Metal Treating, Incorporated | Indianapolis | IN | — | ● ACTIVE |
Heat-treating Technologies, INC | Lima | OH | — | ● ACTIVE |
Heat Treatment America LLC | Santa Fe Springs | CA | — | ● ACTIVE |
Hi Tecmetal Group INC | Eastlake | OH | — | ● ACTIVE |
Hi-temp Brazing, INC | Deer Park | NY | — | ● ACTIVE |
Hts Ameritek, L.l.c. | La Porte | TX | — | ● ACTIVE |
International Metallurgical Services, LLC | Orange | CA | — | ● ACTIVE |
Lake City Heat Treating LLC | Warsaw | IN | — | ● ACTIVE |
| MIMetal Improvement Company, LLC | Indianapolis | IN | — | ● ACTIVE |
Metal Improvement Company, LLC | Blue Ash | OH | — | ● ACTIVE |
Metal Improvement Company, LLC | Charlotte | NC | — | ● ACTIVE |
Modern Industries, INC. | Erie | PA | — | ● ACTIVE |
Nevada Heat Treating, LLC | Newark | CA | — | ● ACTIVE |
Ohio Metallurgical Service, INC. | Elyria | OH | — | ● ACTIVE |
Paulo Products CO | Willoughby | OH | — | ● ACTIVE |
Peening Technologies of Georgia INC | Austell | GA | — | ● ACTIVE |
Phantom Hybrid Designs LLC | Casper | WY | — | ● ACTIVE |
| PTPressure Technology of Florida LLC | Alachua | FL | — | ● ACTIVE |
| PTPressure Technology of Ohio, INC. | Concord Township | OH | — | ● ACTIVE |
Solar Atmospheres of Connecticut, INC | Berlin | CT | — | ● ACTIVE |
Stack Hip LLC | Albany | OR | — | ● ACTIVE |
Superheat Fgh Services INC | New Lenox | IL | — | ● ACTIVE |
| TBThermal Braze, INC. | Jupiter | FL | — | ● ACTIVE |
Thermal-vac Arizona, INC. | Chino Valley | AZ | — | ● ACTIVE |
Turbocam Energy Solutions, LLC | Barrington | NH | — | ● ACTIVE |
Vacu-braze, INC | Quakertown | PA | — | ● ACTIVE |
Wpc Treatment Co., INC. | Torrance | CA | — | ● ACTIVE |
Zentech, LLC | Tulsa | OK | — | ● ACTIVE |
Brazecom Industries, LLC | Weare | NH | — | ◐ LIKELY ACTIVE |
Industrial Metal Finishing, INC. | Placentia | CA | — | ◐ LIKELY ACTIVE |
| ABAltenloh, Brinck & CO. U.s., INC | Pioneer | OH | 100–499 | ◐ LIKELY ACTIVE |
| AEAmac Enterprises INC | Parma | OH | 1–19 | ◐ LIKELY ACTIVE |
| AHAmerican Heat Treating | Monroe | CT | 20–99 | ◐ LIKELY ACTIVE |
| APApplied Process INC. | Livonia | MI | 20–99 | ◐ LIKELY ACTIVE |
| AAAstro Aluminum Treating CO. INC. | South Gate | CA | 100–499 | ◐ LIKELY ACTIVE |
| AAAtmosphere Annealing LLC Dba Aalberts Surface Technologies | Canton | OH | — | ◐ LIKELY ACTIVE |
| AHAtmosphere Heat Treating INC. | Wixom | MI | 20–99 | ◐ LIKELY ACTIVE |
| AIAustemper INC | Clinton Township | MI | 1–19 | ◐ LIKELY ACTIVE |
| BTBluewater Thermal Solutions-rockford | Rockford | IL | 20–99 | ◐ LIKELY ACTIVE |
| BABodycote Arlington | Arlington | TX | 20–99 | ◐ LIKELY ACTIVE |
| CSCincinnati Steel Treating | Cincinnati | OH | 20–99 | ◐ LIKELY ACTIVE |
| CICmc Impact Metals | Pell City | AL | 20–99 | ◐ LIKELY ACTIVE |
Cook Induction Heating Co., Incorporated | Maywood | CA | — | ◐ LIKELY ACTIVE |
| DTDowa Tht America INC | Bowling Green | OH | 20–99 | ◐ LIKELY ACTIVE |
| EHEuclid Heat Treat CO. | Euclid | OH | 20–99 | ◐ LIKELY ACTIVE |
George Industries LLC | Endicott | NY | — | ◐ LIKELY ACTIVE |
| GHGerdau Huntington | Huntington | IN | 20–99 | ◐ LIKELY ACTIVE |
| HMHudapack Metal Treating INC | Elkhorn | WI | 20–99 | ◐ LIKELY ACTIVE |
Iowa Steel Treating, INC. | Bettendorf | IA | — | ◐ LIKELY ACTIVE |
Mil-spec Heat Treating INC | Huntington Beach | CA | — | ◐ LIKELY ACTIVE |
| MOMorgan Ohare INC | Addison | IL | 20–99 | ◐ LIKELY ACTIVE |
| NANorth American Stainless | Ghent | KY | 500+ | ◐ LIKELY ACTIVE |
| PTParker Trutec | Springfield | OH | 100–499 | ◐ LIKELY ACTIVE |
| PTPro Tec Coating CO | Leipsic | OH | 100–499 | ◐ LIKELY ACTIVE |
| SHSouth Holland Metal Finishing | Monee | IL | 20–99 | ◐ LIKELY ACTIVE |
Southwest Specialty Heat Treat INC | Wytheville | VA | — | ◐ LIKELY ACTIVE |
| SSSuper Steel Treating, INC. | Warren | MI | 20–99 | ◐ LIKELY ACTIVE |
| TITc Industries | Crystal Lake | IL | 100–499 | ◐ LIKELY ACTIVE |
| TTThermal Treatment Center INC | Wickliffe | OH | 1–19 | ◐ LIKELY ACTIVE |
| VPVoestalpine Precision Strip LLC | Pleasant Prairie | WI | 20–99 | ◐ LIKELY ACTIVE |
| WDWyman-gordon Dillon Sc | Dillon | SC | 100–499 | ◐ LIKELY ACTIVE |
| AMAero Metal Finishing, LLC | Fenton | MO | — | ◐ LIKELY ACTIVE |
Applied Ultrasonics LLC | Union Grove | AL | — | ◐ LIKELY ACTIVE |
| PSPearl Street - Therm-tech of Waukesha, INC. | Waukesha | WI | 20–99 | ◐ LIKELY ACTIVE |
| SCSousa Corp., the | Newington | CT | — | ◐ LIKELY ACTIVE |
| SSSun Steel Treating INC | South Lyon | MI | 20–99 | ◐ LIKELY ACTIVE |
| TCThe Colson Group, LLC | Murfreesboro | TN | 1–19 | ◐ LIKELY ACTIVE |
| ATApplied Thermal Coatings, INC. | Chattanooga | TN | — | ◇ UNVERIFIED |
| DMDynamic Metal Treating, INC. | Canton | MI | — | ◇ UNVERIFIED |
| MPMetallurgical Processing CO | Warren | MI | — | ◇ UNVERIFIED |
| WIWoodworth INC. | Detroit | MI | — | ◇ UNVERIFIED |
| ASAalberts Surface Technologies Ab, INC. | Goffstown | NH | — | ◐ LIKELY ACTIVE |
| ASAalberts Surface Technologies Fairforest, INC. | Greenville | SC | — | ◐ LIKELY ACTIVE |
| ANAdvanced Nitriding Solutions, LLC | Batesville | IN | — | ◐ LIKELY ACTIVE |
| AAAerospace Aluminum Processing LLC | South Salt Lake | UT | — | ◐ LIKELY ACTIVE |
| ATAjax Tocco Magnethermic - Madison Heights | Madison Heights | MI | 20–99 | ◐ LIKELY ACTIVE |
| AHAl-fe Heat Treating-michigan, LLC | Saginaw | MI | — | ◐ LIKELY ACTIVE |
| ACAllegheny Coatings - Fremont | Fremont | IN | 20–99 | ◐ LIKELY ACTIVE |
| ATApplied Thermal Coatings | Chattanooga | TN | 1–19 | ◐ LIKELY ACTIVE |
| AWAp Westshore | Oshkosh | WI | 20–99 | ◐ LIKELY ACTIVE |
| ABAqua Blasting CORP | Bloomfield | CT | — | ◐ LIKELY ACTIVE |
| BIBct INC Dba Service Heat Treating INC | Milwaukee | WI | 20–99 | ◐ LIKELY ACTIVE |
| BHBenton Harbor LLC | Benton Harbor | MI | 20–99 | ◐ LIKELY ACTIVE |
| BBBlue Blade Steel | Kenilworth | NJ | 20–99 | ◐ LIKELY ACTIVE |