| company | role | hq | verified |
| Reichel-korfmann Co., Inc. r-krubber.com | DIST | Butler, WI (US) | 1 mfrs |
| Reliable Automation & Conveyor SYS. reliableautomation.com | DIST | Birmingham, AL (US) | 1 mfrs |
| Reliable Belting & Transmission Co. | DIST | Toledo, OH (US) | 1 mfrs |
| Reliable Laundry Textiles Services reliablelaundrytextiles.com | DIST | Forest, MS (US) | 1 mfrs |
| Reliable Rubber, Inc. reliablerubberinc.com | DIST | Romeoville, IL (US) | 1 mfrs |
| Rema TIP TOP NA Inc | DIST | — (US) | 1 mfrs |
| Richmond Engineering Works richmondengineering.com | DIST | Pittsburgh, PA (US) | 1 mfrs |
| Rite WAY Conveyors ritewayconveyors.com | DIST | Lester Prairie, MN (US) | 1 mfrs |
| R M Wilson Co., Inc. | DIST | — (US) | 1 mfrs |
| RM Wilson Co., Inc. | DIST | Lebanon, VA (US) | 1 mfrs |
| Ronco Engineering Sales | DIST | Winona, MN (US) | 1 mfrs |
| R.P.M. Incorporated | DIST | Kentwood, MI (US) | 1 mfrs |
| Rubber & Accessories, Inc. rubberandaccessories.com | DIST | Lakeland, FL (US) | 1 mfrs |
| Rubber House of Baton Rouge, Inc | DIST | Baton Rouge, LA (US) | 1 mfrs |
| Sampla Belting/allied Components | DIST | Portland, OR (US) | 1 mfrs |
| Sampla Belting NA LLC sampla.us | DIST | Caponago (US) | 1 mfrs |
| Samuel L Dallas Inc | DIST | Brookfield, CT (US) | 1 mfrs |
| Scandia USA Midwest LLC | DIST | — (US) | 1 mfrs |
| Shaffer's Fabricating Inc. shaffersfab.com | DIST | Uniontown, PA (US) | 1 mfrs |
| Shenandoah Industrial Rubber Co. sircorubber.com | DIST | Salem, VA (US) | 1 mfrs |