| COC O Minot & Son | Pasadena | CA | — | ◐ LIKELY ACTIVE |
| CCommerce | Commerce | CA | 1–19 | ◐ LIKELY ACTIVE |
| CPCommerce Plant 1 | New Berlin | WI | 20–99 | ◐ LIKELY ACTIVE |
| CDCommercial Division | Denver | CO | 20–99 | ◐ LIKELY ACTIVE |
| CFCommercial Fluid Power LLC | University Park | IL | — | ◐ 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 |
| CMCommercial Machine, INC | Richmond | VA | — | ◐ LIKELY ACTIVE |
| CMCommercial Machine Services, INC | Kalispell | MT | — | ◐ LIKELY ACTIVE |
| CMCommercial & Marine Products CORP | Rock Hill | SC | — | ◐ LIKELY ACTIVE |
| CMCommonwealth Machining LLC | Richmond | VA | — | ◐ LIKELY ACTIVE |
| CTCommonwealth Turbocharger Solutions LLC | Toano | VA | — | ◐ LIKELY ACTIVE |
| C1Company 1 | Anamosa | IA | 100–499 | ◐ LIKELY ACTIVE |
Compco Columbiana #1292474 | Columbiana | OH | 100–499 | ◐ LIKELY ACTIVE |
| CMCompetitive Machining INC | Standish | MI | — | ◐ LIKELY ACTIVE |
| CAComplete Air Conditioning & Refrigeration INC | Panama City | FL | — | ◐ LIKELY ACTIVE |
| CCComplete Cnc INC | Mendon | MI | — | ◐ LIKELY ACTIVE |
| CMComplexus Medical Plymouth | Plymouth | IN | 20–99 | ◐ LIKELY ACTIVE |
| CBComponent Bar Products LLC | O Fallon | MO | — | ◐ LIKELY ACTIVE |
| CCComposite Cutter Technology INC | Wauconda | IL | — | ◐ LIKELY ACTIVE |
| CSCompression Systems, INC. | Kansas City | MO | — | ◐ LIKELY ACTIVE |
| CMCompton Metals INC | Clarksburg | WV | — | ◐ LIKELY ACTIVE |
Computer Metal Products Corporation | Simi Valley | CA | 20–99 | ◐ LIKELY ACTIVE |
| CCComtel CORP | Livonia | MI | — | ◐ LIKELY ACTIVE |
Concept Elevator Group, LLC | Miami-Dade | FL | 20–99 | ◐ LIKELY ACTIVE |
| CMConcept Molds, LLC | Schoolcraft | MI | 20–99 | ◐ LIKELY ACTIVE |
| CIConcise Industries | Elk Grove Vilage | IL | 20–99 | ◐ LIKELY ACTIVE |
| CNConcord NC RPC | Concord | NC | 100–499 | ◐ LIKELY ACTIVE |
| CRConcord Road Equipment Manufacturing | Mentor | OH | 20–99 | ◐ LIKELY ACTIVE |
| CPCondor Precision, INC. | Stanton | CA | — | ◐ LIKELY ACTIVE |
| CMConfluent Medical Technologies, Austin | Austin | TX | 20–99 | ◐ LIKELY ACTIVE |
| CMConfluent Medical Technologies, Fremont | Fremont | CA | 100–499 | ◐ LIKELY ACTIVE |
| CMConfluent Medical Technologies, Laguna Niguel | Laguna Niguel | CA | 20–99 | ◐ LIKELY ACTIVE |
| CMConfluent Medical Technologies, Windham | Windham | ME | 20–99 | ◐ LIKELY ACTIVE |
| CCConMed Corp. - Greenwood Village, CO | Greenwood Village | CO | 100–499 | ◐ LIKELY ACTIVE |
| CWConMed - Westborough | Westborough | MA | 20–99 | ◐ LIKELY ACTIVE |
| CConnecticut | Colchester | CT | 100–499 | ◐ LIKELY ACTIVE |
| CCConnecticut Coining, INC. | Bethel | CT | — | ▲ REPORTED CLOSED |
| CCCONQ Canada | West Chester | OH | 1–19 | ◐ LIKELY ACTIVE |