| company | role | hq | verified |
| RELIABLE HYDRAULICS, INC. reliablehydraulics.com | DIST | Smyrna, GA (US) | 1 mfrs |
| RELIABLE PETROLEUM & LUBRICATION EQ | DIST | Las Vegas, NV (US) | 1 mfrs |
| RIVER BEND INDUSTRIES riverbendind.com | DIST | Moorhead, MN (US) | 1 mfrs |
| ROCHESTER PETRO EQUIPMENT rochpetro.com | DIST | Stewartville, MN (US) | 1 mfrs |
| ROD JOHNSON & ASSOCIATES INC rjalubeequipmentsales.com | DIST | Cincinnati, OH (US) | 1 mfrs |
| R & R PETROLEUM EQUIPMENT | DIST | Fargo, ND (US) | 1 mfrs |
| R W MERCER CO rwmercer.com | DIST | Jackson, MI (US) | 1 mfrs |
| SAFE T TANK CORP safe-t-tank.com | DIST | Meriden, CT (US) | 1 mfrs |
| Seneca Companies senecaco.com | DIST | Denver, CO (US) | 1 mfrs |
| SOLTECH sol-tech.net | MFG DIST | Miami, FL (US) | 1 mfrs |
| Spatco Energy Solutions spatco.com | DIST | Elkridge, MD (US) | 1 mfrs |
| SPATCO ENERGY SOLUTIONS - AL | DIST | Mobile, AL (US) | 1 mfrs |
| S & P EQUIPMENT & SUPPLIES | DIST | Hyattsville, MD (US) | 1 mfrs |
| SPIGLER PETROLEUM EQUIPMENT LLC spiglerpetroleum.com | DIST | Westminster, MD (US) | 1 mfrs |
| STANLEY PETROLEUM MAINTENANCE stanleypetroleum.com | DIST | Norfolk, NE (US) | 1 mfrs |
| Stanwade Metal Products Inc stanwade.com | DIST | Luckey, OH (US) | 1 mfrs |
| STRICK EQUIPMENT SALES INC strickequipment.com | DIST | Jenison, MI (US) | 1 mfrs |
| Sunshine State Sales | DIST | Apopka, FL (US) | 1 mfrs |
| SUPERIOR PETROLEUM EQUIPMENT LLC superiorpetroleumequipment.com | DIST | Grove City, OH (US) | 1 mfrs |
| S & W SERVICES INC swsvcs.com | DIST | Rochester, NY (US) | 1 mfrs |