| Rahr Corporation MN | Manufacturing | 0 | — | B |
| Rahr Corporation RI | Wholesale Trade | 0 | — | A |
| RAHTRI MANAGEMENT, LLC TX | Accommodation & Food Services | 0 | — | A |
| Rai Corporation NY | — | 0 | — | — |
| Rai Rai Ken Corporation dba Rai Rai Ken NY | — | 0 | — | — |
| Raices TX | — | 0 | — | — |
| Raices (April 2025) TX | — | 0 | — | — |
| RAIDEN ELECTRIC, LLC. NY | Construction | 0 | — | A |
| Raider Manufacturing, LTD TX | Manufacturing | 0 | — | A |
| RAIDER PUMP AND MACHINE, INC. KY | Manufacturing | 0 | — | A |
| Raiders Football Club, LLC CA | — | 0 | — | — |
| Rail Connection AL | Transportation & Warehousing | 0 | — | A |
| Rail Crew Xpress KY | — | 0 | — | — |
| Rail Exchange, Inc IL | Manufacturing | 0 | — | F |
| Rail Link, Inc. FL | Transportation & Warehousing | 0 | — | A |
| Rail Logistics, Inc. OH | Transportation & Warehousing | 0 | — | F |
| Rail Modal Group LLC NE | Transportation & Warehousing | 0 | — | F |
| RAIL ONE USA IA | Manufacturing | 0 | — | F |
| Rail Pod Incorporated MA | Information & Media | 2 | $115,500 | — |
| Rail Services, Inc KY | Transportation & Warehousing | 0 | — | B |
| RAIL TERMINAL SERVICES CA | Transportation & Warehousing | 0 | — | B |
| RAIL TERMINAL SERVICES TX | Transportation & Warehousing | 0 | — | F |
| RAIL TERMINAL SERVICES UT | Transportation & Warehousing | 0 | — | D |
| RAIL TERMINAL SERVICES WA | Transportation & Warehousing | 0 | — | B |
| Rail to Road SD | Transportation & Warehousing | 0 | — | C |
| Rail Transportation Solutions FL | Transportation & Warehousing | 0 | — | A |
| RailAmerica FL | — | 0 | — | — |
| Railcar Manufacturing Operations OR | — | 0 | — | — |
| Railcrew Express-RCX Logistics TX | — | 0 | — | — |
| Railcrew Xpress AL | — | 0 | — | — |
| Railcrew Xpress FL | — | 0 | — | — |
| Railcrew Xpress IN | — | 0 | — | — |
| Railcrew Xpress OH | — | 0 | — | — |
| Railcrew Xpress SC | — | 0 | — | — |
| Railcrew Xpress (RCX) GA | — | 0 | — | — |
| Railcrew Xpress (RCX) NC | — | 0 | — | — |
| Railcrew Xpress (RCX) VA | — | 0 | — | — |
| Railcrew Xpress, LLC GA | — | 0 | — | — |
| Railcrew Xpress-RCX Logistics-Austin TX | — | 0 | — | — |
| Railex WA | — | 0 | — | — |
| Railex Wine Services, LLC WA | Transportation & Warehousing | 0 | — | B |
| Railex, LLC CA | — | 0 | — | — |
| Railex, LLC NY | — | 0 | — | — |
| Railinc Corp NC | Information & Media | 4 | $132,878 | — |
| RailPros Field Services TX | Transportation & Warehousing | 0 | — | A |
| RailPros Inc. CA | Transportation & Warehousing | 0 | — | A |
| Railroad /Michels JV NJ | Construction | 0 | — | A |
| Railroad Avenue Disposal MS | Administrative & Waste Services | 0 | — | A |
| Railroad Construction Co., Inc. NJ | Construction | 0 | — | F |
| Railroad Construction Co., Inc. -Amtrak, NY NJ | Construction | 0 | — | A |
