| Rominger Brothers Farms CA | Agriculture & Forestry | 0 | — | F |
| Rommel Capital Management PA | Construction | 0 | — | F |
| Rommel Construction, LLC MD | Professional & Technical Services | 0 | — | F |
| Rommel Electric Company MD | Construction | 0 | — | A |
| Rommel Infrastructure Inc MD | Construction | 0 | — | F |
| Romo Inc WI | Manufacturing | 0 | — | A |
| ROMO MANAGEMENT OF GA INC GA | Real Estate | 1 | $97,500 | — |
| Romtec Inc OR | Construction | 0 | — | F |
| Romtec Utilites Inc. OR | Manufacturing | 0 | — | F |
| Romulus Restaurant Group AZ | Accommodation & Food Services | 0 | — | A |
| Romulus Restaurants LLC AZ | Accommodation & Food Services | 0 | — | A |
| Ron & Sons Trucking Inc. CA | Transportation & Warehousing | 0 | — | A |
| Ron Bouchard Chrysler Dodge Ram LLC MA | Retail Trade | 0 | — | B |
| Ron Bowers, Inc. OR | Transportation & Warehousing | 0 | — | F |
| Ron Clark Construction MN | Construction | 0 | — | F |
| RON DUPRATT FORD CA | Retail Trade | 0 | — | B |
| Ron English Trucking Inc DE | Transportation & Warehousing | 0 | — | A |
| Ron Group, LLC dba Blue Sky Specialty Pharmacy SC | — | 0 | — | — |
| Ron Jewelers LLC LA | Retail Trade | 1 | $50,400 | — |
| Ron Jon Surf Shop AL | Retail Trade | 0 | — | A |
| Ron Jon Surf Shop FL | Retail Trade | 0 | — | F |
| Ron Jon Surf Shop SC | Retail Trade | 0 | — | A |
| Ron Jones Electric, Inc. IL | Construction | 0 | — | A |
| Ron Jordan concrete Pumping, Inc. CA | Construction | 0 | — | A |
| Ron Kendall Masonry, Inc. FL | Construction | 0 | — | A |
| RON MARHOFER AUTOMALL GROUP OH | Wholesale Trade | 0 | — | C |
| Ron Meidema Concrete Contractors, Inc. MI | Manufacturing | 0 | — | A |
| RON WEERS CONSTRUCTION INC KS | Construction | 0 | — | D |
| Ron Wicker Management CA | Agriculture & Forestry | 0 | — | A |
| Ron Wilson Center OR | Healthcare & Social Assistance | 0 | — | F |
| Ron Wright & Associates/Architects, P.S. WA | Professional & Technical Services | 1 | $85,000 | — |
| Ron's Garage NE | — | 0 | — | — |
| Ron's Home Style Foods Inc TX | Manufacturing | 0 | — | D |
| Ron's Repair Inc. MN | Other Services | 0 | — | A |
| Ron's Tire & Wheel CA | Retail Trade | 0 | — | A |
| Ronald Cohn Inc DBA Sprouts Farmers Market CA | Retail Trade | 0 | — | D |
| Ronald E Blanco-Quant, M.D. TX | Healthcare & Social Assistance | 1 | $200,000 | — |
| Ronald Franks Construction Company, LLC TN | Construction | 0 | — | F |
| RONALD GROSS INC. PA | Transportation & Warehousing | 0 | — | F |
| Ronald L. Wolfe & Associates, Incorporated CA | Real Estate | 0 | — | F |
| Ronald Lee Fulbright Lumber, Inc. NC | Manufacturing | 0 | — | F |
| Ronald M. Goldin, M.D., P.A. FL | Healthcare & Social Assistance | 0 | — | A |
| Ronald McDonald House New York NY | Healthcare & Social Assistance | 0 | — | A |
| Ronald R. Wolfe & Associates, P.L. FL | — | 0 | — | — |
| Ronan Eng KY | Manufacturing | 0 | — | A |
| Ronan Engineering KY | Manufacturing | 0 | — | A |
| Roncelli Plastics CA | Manufacturing | 0 | — | F |
| Roncelli, Inc. MI | Construction | 0 | — | A |
| Ronco Construction NE | Construction | 0 | — | A |
| Ronda Foods UT | Accommodation & Food Services | 0 | — | A |
