| company | role | hq | verified |
| C.E. Gobeil gobeilco.com | MFG DIST | St Paul, MN (US) | 1 mfrs |
| Central Chain & Trans centralchainonline.com | DIST | Yakima, WA (US) | 1 mfrs |
| Central Texas Bearing | DIST | Austin, TX (US) | 1 mfrs |
| Centre Bearing | DIST | Philipsburg, PA (US) | 1 mfrs |
| Chandler & Farquh cf.dreamscape.com | DIST | — (US) | 1 mfrs |
| Cherokee Bearing & Power cherokeebearing.com | DIST | Gaffney, GA (US) | 1 mfrs |
| Cincinnati Transmission cincinnatitransmission.com | DIST | Cincinnati, OH (US) | 1 mfrs |
| Columbia Industrial Sup. | DIST | Wheeling, IL (US) | 1 mfrs |
| Constant Motion Tech Inc | DIST | — (CA) | 1 mfrs |
| Control Resources Inc | DIST | Salisbury, NC (US) | 1 mfrs |
| Conway Bearing And Supply | DIST | Conway, CO (US) | 1 mfrs |
| Cornhusker Bearing Co. | DIST | Columbus, CO (US) | 1 mfrs |
| CPC Bearing cpcbearings.com | DIST | Wichita, WI (US) | 1 mfrs |
| Cross Bros crossbros.com | DIST | Rochester, NY (US) | 1 mfrs |
| C-S Bearing csbearing.com | DIST | Duncan, OK (US) | 1 mfrs |
| Dash Mechanical | DIST | Discovery Bay, CA (US) | 1 mfrs |
| Decatur Bearing & Drive Supply | DIST | Decatur, DE (US) | 1 mfrs |
| Dee Fluid Power | DIST | Charlotte, NC (US) | 1 mfrs |
| Din Hsu Co | DIST | — (US) | 1 mfrs |
| Dodge Newark Supply dodge-newark.com | DIST | — (US) | 1 mfrs |