| CRCalvary Robotics - Webster, NY | Webster | NY | 100–499 | ◐ LIKELY ACTIVE |
| CVCameron Valves | Ville Platte | LA | 100–499 | ◐ LIKELY ACTIVE |
| CCCanton Controls | North Canton | OH | 100–499 | ◐ LIKELY ACTIVE |
| CPCarey Plant | Carey | OH | 100–499 | ◐ LIKELY ACTIVE |
| CCarlstar-Aiken | Aiken | SC | 100–499 | ◐ LIKELY ACTIVE |
| CCCarrier Corporation (Charlotte) | Charlotte | NC | 100–499 | ◐ LIKELY ACTIVE |
| CCCarrier Corporation (Collierville) | Collierville | TN | 500+ | ◐ LIKELY ACTIVE |
| CCCarrier Corporation (Indianapollis) | Indianapolis | IN | 500+ | ◐ LIKELY ACTIVE |
| CPCarrier Puerto Rico INC | Guaynabo | PR | — | ◐ LIKELY ACTIVE |
| CScar sound exhaust | Oceanside | CA | 100–499 | ◐ LIKELY ACTIVE |
| CICentral Illinois Manufacturing Co, Cim-Tek Filtration | Bement | IL | 20–99 | ◐ LIKELY ACTIVE |
| CICentral Illinois Manufacturing Company Cim-tek | Kennett | MO | 20–99 | ◐ LIKELY ACTIVE |
Checkers Industrial Products, LLC. dba Checkers Safety Group | Broomfield | CO | 20–99 | ◐ LIKELY ACTIVE |
| CChicago | Forest Park | IL | 20–99 | ◐ LIKELY ACTIVE |
| CUCIPA USA Inc. | Port Huron | MI | 20–99 | ◐ LIKELY ACTIVE |
| CCCMS Cooling LLC | El Mirage | AZ | 20–99 | ◐ LIKELY ACTIVE |
| CWCMS Waynesboro LLC | Waynesboro | GA | 1–19 | ◐ LIKELY ACTIVE |
| CHCM&W Hannibal North | Hannibal | MO | 20–99 | ◐ LIKELY ACTIVE |
| CHCM&W Hannibal South | Hannibal | MO | 20–99 | ◐ LIKELY ACTIVE |
| CICodab International LLC | Katy | TX | — | ◐ LIKELY ACTIVE |
| CCColmac Coil Manufacturing, Inc. | Colville | WA | 100–499 | ◐ LIKELY ACTIVE |
| CHColorado Heating & Cooling LLC | Yuma | AZ | — | ◐ LIKELY ACTIVE |
| CRCombined Refrigeration Resources Inc. | Houston | TX | 100–499 | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Charlotte, NC-USA | Charlotte | NC | 100–499 | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Clarksville, TN-USA | Clarksville | TN | 500+ | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Columbia, SC-USA | Columbia | SC | 500+ | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-FairLawn NJ-USA | Fair Lawn | NJ | 20–99 | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Ft. Smith1, AR-USA | Fort Smith | AR | 100–499 | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Grand Rapids Chillers MI-USA | Grand Rapids | MI | 100–499 | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Grand Rapids Final Finisher MI-USA | Grand Rapids | MI | 100–499 | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-La Crosse, WI-USA | La Crosse | WI | 500+ | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Lynn Haven, FL-USA | Panama City | FL | 500+ | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Newberry, SC-USA | Newberry | SC | 100–499 | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Pueblo, CO-USA | Pueblo | CO | 500+ | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Rushville, IN-USA | Rushville | IN | 100–499 | ◐ LIKELY ACTIVE |
| CHCommercial HVAC - Americas : MFG-Waco, TX-USA | Mc Gregor | TX | 100–499 | ◐ LIKELY ACTIVE |
| CVCommercial Vehicle Group-Michigan City | Michigan City | IN | 100–499 | ◐ LIKELY ACTIVE |
| CAComplete Air Conditioning & Refrigeration INC | Panama City | FL | — | ◐ LIKELY ACTIVE |
| CConstellium | Van Buren | MI | 100–499 | ◐ LIKELY ACTIVE |
| CAConstellium Automotive | White | GA | 100–499 | ◐ LIKELY ACTIVE |
| CLControlworx, L.l.c | Baton Rouge | LA | — | ◐ LIKELY ACTIVE |
| CSCooling Systems-caribe, INC. | Aibonito | PR | — | ◐ LIKELY ACTIVE |
| CSCooper Standard - Spartanburg | Boiling Springs | SC | 100–499 | ◐ LIKELY ACTIVE |
| CCCopeland Corporation LLC Plant #14 | Rushville | IN | 100–499 | ◐ LIKELY ACTIVE |
| CICoplas Inc. | Sterling Heights | MI | 20–99 | ◐ LIKELY ACTIVE |
| COCorporate Offices | Auburn Hills | MI | 100–499 | ◐ LIKELY ACTIVE |
| CCCorpus Christi | Corpuc Christi | TX | 20–99 | ◐ LIKELY ACTIVE |
| CTCorrective Temp Solutions LLC | Central Islip | NY | — | ◐ LIKELY ACTIVE |
| CPCortec Power Chokes | Houma | TX | 20–99 | ◐ LIKELY ACTIVE |
| CBCrane Bolingbrook | Bolingbrook | IL | 20–99 | ◐ LIKELY ACTIVE |