| Black Hills Energy SD | Utilities | 0 | - | D |
| Black Hills Orthopedic & Spine Center SD | Healthcare & Social Assistance | 0 | - | A |
| Black Hills State University SD | Educational Services | 1 | $70,392 | - |
| Black Hills Surgical Hospital SD | Healthcare & Social Assistance | 0 | - | F |
| Black Hills Truss and Components LLC SD | Manufacturing | 0 | - | F |
| Black Hills Works SD | Healthcare & Social Assistance | 0 | - | - |
| Black Horse Carriers Inc. WI | - | 0 | - | - |
| Black Horse Carriers Inc. - Revision 1 WI | - | 0 | - | - |
| Black Leg Ranch Meats, LLC ND | Agriculture & Forestry | 1 | $39,187 | - |
| Black Lexington Group, LLC (44th St) NY | - | 0 | - | - |
| Black Lexington Group, LLC (Broadway) NY | - | 0 | - | - |
| Black Lexington Group, LLC (Corporate) NY | - | 0 | - | - |
| Black Lexington Group, LLC (Reade) NY | - | 0 | - | - |
| Black Micro Corporation GU | Construction | 4 | $57,250 | - |
| Black Mountain Land Company LP TX | Utilities | 1 | $123,739 | - |
| Black Mountain Management, LLC TX | - | 0 | - | - |
| Black Mountain Sand OK | - | 0 | - | - |
| Black Oak Casino Resort CA | Arts & Entertainment | 0 | - | B |
| Black Oak Mining, LLC WV | - | 0 | - | - |
| Black Panther Mining IN | - | 0 | - | - |
| Black Ridge Canyon Healthcare INC TX | Healthcare & Social Assistance | 0 | - | F |
| Black Rifle Coffee Company LLC UT | Retail Trade | 1 | $191,000 | - |
| Black River Generating Facility NY | - | 0 | - | - |
| Black River Memorial Hospital WI | Healthcare & Social Assistance | 0 | - | F |
| Black Rock Store Operations LLC CA | Accommodation & Food Services | 0 | - | F |
| Black Rock Store Operations LLC OR | Accommodation & Food Services | 0 | - | D |
| Black Rock Store Operations LLC WA | Accommodation & Food Services | 0 | - | F |
| Black Sesame Technologies Inc CA | Information & Media | 3 | $212,627 | - |
| Black Sheep Pizza MN | - | 0 | - | - |
| Black Shoe Hospitality WI | - | 0 | - | - |
| Black Star Ranch, LLC WA | Agriculture & Forestry | 0 | - | F |
| Black Swan EmployerCo, LLC OK | Mining & Extraction | 1 | $161,512 | - |
| Black Swan Global Group INC DE | Professional & Technical Services | 1 | $166,400 | - |
| Black Tap Las Vegas, LLC NV | - | 0 | - | - |
| Black Tap Midtown, LLC aka Black Tap Craft Burgers & Beer NY | - | 0 | - | - |
| Black Turtle Services UT | - | 0 | - | - |
| Black Water Lounge MN | - | 0 | - | - |
| Black-Haak Heating, Inc. WI | Construction | 0 | - | D |
| Blackbaud, Inc CA | - | 0 | - | - |
| Blackbaud, Inc. SC | Professional & Technical Services | 3 | - | - |
| Blackbeard Operating, LLC TX | Mining & Extraction | 0 | - | F |
| Blackberry CORPORATION CA | Information & Media | 2 | $132,077 | - |
| BlackBerry Corporation FL | - | 0 | - | - |
| Blackberry CORPORATION TX | Information & Media | 6 | $213,893 | - |
| Blackboard Services, LLC (Blackboard Insurance) NY | - | 0 | - | - |
| Blackbuck Insights LLC IL | Professional & Technical Services | 10 | $111,813 | - |
| Blackburn Architects, PC DC | Professional & Technical Services | 1 | $90,000 | - |
| Blackhawk Country CA | - | 0 | - | - |
| Blackhawk Country Club CA | Arts & Entertainment | 0 | - | B |
| Blackhawk Country Club-Dnvll CA | - | 0 | - | - |
