| BTBodycote Thermal Processing | Lansing | MI | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Fountain Inn | SC | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Saint Louis | MO | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Worcester | MA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Racine | WI | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Houston | TX | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Westminster | CA | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing | Melrose Park | IL | — | ◇ 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 |
| DHDriscol Holdings, LLC | Chino Valley | AZ | — | ◇ UNVERIFIED |