| Four Seasosn Hotel- Houston TX | Accommodation & Food Services | 0 | — | D |
| Four Sisters Inns CA | Accommodation & Food Services | 0 | — | F |
| Four Square Healthcare TX | Healthcare & Social Assistance | 0 | — | A |
| Four Square Ventures Inc. MA | Transportation & Warehousing | 0 | — | D |
| Four Star Auto Service 2019 MN | — | 0 | — | — |
| Four Star Drug NE | — | 0 | — | — |
| Four Star Drywall CO | Construction | 0 | — | A |
| FOUR STAR EXPRESS DELIVERY IL | Transportation & Warehousing | 0 | — | D |
| Four Star Fabricators, Inc. IN | Manufacturing | 0 | — | F |
| Four Star Freightliner, Inc. AL | Wholesale Trade | 0 | — | C |
| Four Star Freightliner, Inc. FL | Wholesale Trade | 0 | — | A |
| Four Star Freightliner, Inc. GA | Wholesale Trade | 0 | — | A |
| Four Star Fruit CA | Agriculture & Forestry | 0 | — | F |
| Four Star Greenhouse, Inc. MI | Agriculture & Forestry | 0 | — | C |
| Four Star Mechanical, Inc. OH | Construction | 0 | — | F |
| FOUR STAR MEDICAL INVESTORS, LLC TX | Healthcare & Social Assistance | 0 | — | A |
| Four Star Paving LLC TN | Construction | 0 | — | F |
| Four Star Rebar, Inc. CA | Construction | 0 | — | F |
| Four Star Supply, Inc. WA | Other Services | 0 | — | A |
| Four State Trucks MO | Wholesale Trade | 0 | — | A |
| Four Stone Holdings LLC KY | Manufacturing | 0 | — | F |
| Four Threads Holding LLC DBA Poisel Construction IN | Construction | 0 | — | F |
| Four Tribes Development Holdings LLC MD | Construction | 0 | — | D |
| Four Wheel Campers,LLC CA | Manufacturing | 0 | — | F |
| Four Winds Inc. NY | Healthcare & Social Assistance | 0 | — | F |
| Four Winds Investments, Inc. TX | Manufacturing | 0 | — | C |
| FOUR WINDS MECHANICAL HTC/AC INC. NM | Construction | 0 | — | F |
| Four WInds Saratoga NY | Healthcare & Social Assistance | 0 | — | D |
| Four-Aces Logistics, LLC LA | Transportation & Warehousing | 0 | — | B |
| FOUR-C-AIRE, INC. NY | Construction | 0 | — | A |
| Four-D Metal Finishing, Inc. CA | Manufacturing | 0 | — | F |
| Fouraker Hills Rehab & Nursing Center FL | Healthcare & Social Assistance | 0 | — | A |
| FourGen Holdings IL | Construction | 0 | — | C |
| FourGen Holdings WI | Construction | 0 | — | A |
| Fourhub Technologies Inc NH | Professional & Technical Services | 1 | $79,602 | — |
| Fourinox, Inc. WI | Manufacturing | 0 | — | F |
| Fournie Contracting Company, Inc.618 IL | Construction | 0 | — | A |
| FourPoints by sheraton Downtown New york NY | Accommodation & Food Services | 0 | — | A |
| FourQuest Energy TX | Mining & Extraction | 0 | — | A |
| FourSeasons, Incorporated TN | Construction | 0 | — | F |
| FourShare LLC NC | Manufacturing | 0 | — | F |
| Fourslide Spring and Stamping, Inc. CT | Manufacturing | 0 | — | A |
| Foursquare Healthcare TX | Healthcare & Social Assistance | 0 | — | A |
| Foursquare Healthcare Services TX | Healthcare & Social Assistance | 0 | — | A |
| Foursquare Labs, Inc. CA | Information & Media | 1 | $181,280 | — |
| Foursquare Labs, Inc. NY | Information & Media | 11 | $219,680 | — |
| Foursquare TX16, LLC TX | Healthcare & Social Assistance | 0 | — | B |
| Fourteen Foods, LLC MN | Accommodation & Food Services | 0 | — | B |
| Fourth Age, LLC. PA | Professional & Technical Services | 1 | $200,000 | — |
| Fourth Avenue Homes MN | Healthcare & Social Assistance | 0 | — | F |
