| FRONTIER SCIENCE AND TECHNOLOGY RESEARCH FOUNDATION INC. NY | Professional & Technical Services | 2 | $68,329 | — |
| Frontier Specialty Chemicals Inc. UT | Manufacturing | 0 | — | A |
| FRONTIER SPINNING MILLS AL | — | 0 | — | — |
| Frontier Spinning Mills, Inc NC | Manufacturing | 0 | — | A |
| Frontier Supply Company OH | Retail Trade | 0 | — | A |
| Frontier Supply, Inc. GU | Wholesale Trade | 1 | $47,445 | — |
| Frontier Technologies, LLC IL | Professional & Technical Services | 7 | $108,857 | — |
| Frontier Technology, LLC AZ | Professional & Technical Services | 1 | $110,000 | — |
| Frontier Transport WA | Transportation & Warehousing | 0 | — | A |
| Frontier Tubular Solutions OK | Manufacturing | 0 | — | A |
| Frontier Tubular Solutions TX | Manufacturing | 0 | — | F |
| Frontier Waste MIDCO, LLC, Corporate TX | Administrative & Waste Services | 0 | — | A |
| Frontier Waste Solutions Co TX | Administrative & Waste Services | 0 | — | A |
| Frontier West, LLC MT | Construction | 0 | — | A |
| Frontier-Kemper Constructors CA | Construction | 0 | — | D |
| Frontier-Kemper Constructors IN | Mining & Extraction | 0 | — | D |
| Frontier-Kemper Constructors, Inc EVV SITE IN | Construction | 0 | — | A |
| Frontiere Natural Meats CO | Manufacturing | 0 | — | A |
| Frontline Communications FL | Manufacturing | 0 | — | C |
| Frontline Community Services, Inc. MD | Healthcare & Social Assistance | 1 | $73,000 | — |
| Frontline Express Solutions LLC CA | Transportation & Warehousing | 0 | — | F |
| Frontline Health, Inc CA | Administrative & Waste Services | 0 | — | A |
| Frontline Insurance Manager's Inc FL | Finance & Insurance | 2 | $150,000 | — |
| Frontline Insurance Managers Inc FL | Finance & Insurance | 1 | $131,043 | — |
| FRONTLINE LOGISTICS LLC MO | Transportation & Warehousing | 0 | — | F |
| Frontline Management CO | Healthcare & Social Assistance | 0 | — | F |
| Frontline Management KS | Healthcare & Social Assistance | 0 | — | F |
| Frontline Management OH | Healthcare & Social Assistance | 0 | — | F |
| Frontline Management SD | Healthcare & Social Assistance | 0 | — | A |
| Frontline Parcel Express LLC NC | Transportation & Warehousing | 0 | — | B |
| Frontline Richmond Medical Center LLC TX | Healthcare & Social Assistance | 0 | — | F |
| Frontline White Rock Medical TX | Healthcare & Social Assistance | 0 | — | A |
| Frontpoint LLC. (Primary Home Health Care) TX | — | 0 | — | — |
| FrontRunnerHC MA | Information & Media | 1 | $95,000 | — |
| Frontview Provider Services Inc. dba Frontview Home Healthcare TX | Healthcare & Social Assistance | 1 | $120,640 | — |
| Frore Systems, Inc. CA | Manufacturing | 1 | $181,397 | — |
| Frost & Sullivan TX | Professional & Technical Services | 1 | $88,400 | — |
| Frost Arnett TN | — | 0 | — | — |
| Frost Bank TX | Finance & Insurance | 2 | $163,500 | — |
| Frost Brown Todd LLP KY | Professional & Technical Services | 1 | $150,000 | — |
| Frost Building Maintenance, Inc OH | Construction | 0 | — | F |
| Frost Inc. MI | Manufacturing | 0 | — | A |
| Frost Oil AR | Wholesale Trade | 0 | — | D |
| Frost Roofing, Inc. OH | Construction | 0 | — | A |
| Frost Valley YMCA NY | Accommodation & Food Services | 0 | — | F |
| Frostburg State University MD | Educational Services | 5 | $76,987 | — |
| Frosted Lakes Ltd OH | Manufacturing | 0 | — | A |
| Frosty Valley Resort, LLC PA | Arts & Entertainment | 0 | — | F |
| Froy, LLC dba Suncoast Transportation FL | Transportation & Warehousing | 0 | — | C |
| Frozen Food Express Industries, Inc./ Frozen Food Express Industries, Inc. / FFE Transportation IL | Transportation & Warehousing | 0 | — | A |
