| Buffalo Plains Genetics, LLC. NE | Agriculture & Forestry | 0 | — | F |
| Buffalo Prairie Nursing and Rehab LLC MO | Healthcare & Social Assistance | 0 | — | F |
| Buffalo Pumps NY | Manufacturing | 0 | — | F |
| Buffalo Restoration, Inc. MT | Construction | 0 | — | F |
| Buffalo ReUse Inc. NY | Other Services | 1 | $48,950 | — |
| Buffalo Ridge Concrete Inc. SD | Manufacturing | 0 | — | A |
| Buffalo Rock AL | Manufacturing | 0 | — | F |
| Buffalo Rock FL | Manufacturing | 0 | — | F |
| Buffalo Rock GA | Manufacturing | 0 | — | F |
| Buffalo Rock Pepsi AL | Manufacturing | 0 | — | F |
| Buffalo Rock Pepsi FL | Manufacturing | 0 | — | F |
| Buffalo Society of Natural Services NY | Arts & Entertainment | 0 | — | F |
| Buffalo Trace Distillery KY | Manufacturing | 0 | — | A |
| Buffalo Tungsten Inc NY | Manufacturing | 0 | — | F |
| Buffalo Weaver, Inc. IA | — | 0 | — | — |
| Buffalo Welding, Inc. OR | Construction | 0 | — | A |
| Buffalo Wild Wings CA | — | 0 | — | — |
| Buffalo Wild Wings MN | — | 0 | — | — |
| Buffalo Wings & Rings NE | — | 0 | — | — |
| Buffalo Wings and Rings 2021 MN | — | 0 | — | — |
| Buffalo Wire Works NY | Manufacturing | 0 | — | F |
| Buffalo Wire Works Co., Inc. NV | Manufacturing | 0 | — | F |
| Buffalo Wire Works Co., Inc. TX | Manufacturing | 0 | — | A |
| Buffington Homes of Arkansas, LLC AR | Construction | 0 | — | A |
| Buffini & Company CA | Professional & Technical Services | 1 | $125,000 | — |
| Bufkin Enterprises, Ltd. NY | — | 0 | — | — |
| Buflovak LLC NY | — | 0 | — | — |
| Buford Thompson Company LLC TX | Construction | 0 | — | F |
| Bug Busters Inc GA | Administrative & Waste Services | 0 | — | A |
| Bug Busters Inc TN | Administrative & Waste Services | 0 | — | A |
| Bug Busters Pest Control Services, Inc. VA | Administrative & Waste Services | 0 | — | B |
| Bug Master Exterminating Service, LTD TX | Administrative & Waste Services | 0 | — | F |
| Bug Tussel Wireless WI | Information & Media | 0 | — | A |
| Buhler NC | Manufacturing | 0 | — | A |
| Buhler SD | — | 0 | — | — |
| Buhler & Bitter Inc NJ | Retail Trade | 0 | — | A |
| Buhler Inc. MN | Manufacturing | 0 | — | B |
| Buhler Industries 2020 MN | — | 0 | — | — |
| Buhler Quality Yarns GA | Manufacturing | 0 | — | C |
| BUHLER SUNSHINE HOME KS | Healthcare & Social Assistance | 0 | — | D |
| BuhlerPrince, Inc. MI | Manufacturing | 0 | — | F |
| Buhlmann North America, LP NC | Wholesale Trade | 0 | — | A |
| Buhrman Design Group IL | Administrative & Waste Services | 0 | — | A |
| Buhrt Engineering, Inc. IN | Manufacturing | 0 | — | A |
| BUICK GMC OF BEAVERTON OR | Other Services | 0 | — | A |
| Buick GMC of Rochester MN | Retail Trade | 0 | — | B |
| Build A Sign LLC TX | Manufacturing | 0 | — | F |
| Build Block, Inc. CA | Real Estate | 1 | $120,000 | — |
| Build Group Construction Company CA | Construction | 0 | — | A |
| Build Group, Inc. CA | Construction | 0 | — | A |
