| BLACKBURN'S FABRICATION, INC OH | Manufacturing | 0 | — | A |
| Blackburn's Physicians Pharmacy Inc. PA | Real Estate | 0 | — | F |
| Blackburns Chimney Services OH | Administrative & Waste Services | 0 | — | F |
| Blackduck Public School MN | Educational Services | 0 | — | A |
| Blackeagle Energy Services CO | Construction | 0 | — | A |
| Blackeagle Fabrication CO | Manufacturing | 0 | — | D |
| BLACKER GREEN INC. FL | Construction | 0 | — | F |
| Blackfin Real Estate Investors LLC VA | Real Estate | 0 | — | A |
| BlackFish Enterprises LLC FL | Transportation & Warehousing | 0 | — | F |
| Blackfoot Operations, LLC ID | Healthcare & Social Assistance | 0 | — | A |
| Blackfoot Telephone Cooperative, Inc. MT | Information & Media | 0 | — | A |
| Blackhawk Automatic Sprinklers, Inc. IA | Construction | 0 | — | F |
| Blackhawk Corrugated IL | Manufacturing | 0 | — | F |
| Blackhawk Country CA | — | 0 | — | — |
| Blackhawk Country Club CA | Arts & Entertainment | 0 | — | B |
| Blackhawk Country Club-Dnvll CA | — | 0 | — | — |
| Blackhawk Energy, LLC PA | Mining & Extraction | 0 | — | F |
| Blackhawk Equipment Company CO | Other Services | 0 | — | B |
| Blackhawk Mining, LLC WV | — | 0 | — | — |
| Blackhawk Mining, LLC Hamppden Coal, LLC Hampden #2 Mine Hampden Prep Plant WV | — | 0 | — | — |
| Blackhawk Mining, LLC Panther Creek Mining, LLC WV | — | 0 | — | — |
| Blackhawk Molding AR | Manufacturing | 0 | — | F |
| Blackhawk Molding IL | Manufacturing | 0 | — | A |
| Blackhawk Moving & Storage IL | Transportation & Warehousing | 0 | — | D |
| Blackhawk Neff Inc. PA | Construction | 0 | — | B |
| Blackhawk Network, Inc. CA | Finance & Insurance | 5 | $134,258 | — |
| Blackhawk Professional Construction Services, Inc. MN | Construction | 0 | — | C |
| Blackhawk Services Corp IA | — | 0 | — | — |
| Blackhawk Tower Communications WI | Construction | 0 | — | F |
| BLACKHAWK TRANSPORT FL | Transportation & Warehousing | 0 | — | D |
| BLACKHAWK TRANSPORT IL | Transportation & Warehousing | 0 | — | C |
| BLACKHAWK TRANSPORT KY | Transportation & Warehousing | 0 | — | F |
| BLACKHAWK TRANSPORT TX | Transportation & Warehousing | 0 | — | D |
| BLACKHAWK TRANSPORT VA | Transportation & Warehousing | 0 | — | C |
| BLACKHAWK TRANSPORT WI | Transportation & Warehousing | 0 | — | C |
| BLACKHAWK TRANSPORT INC OH | Transportation & Warehousing | 0 | — | A |
| Blackhorse Industrial Solutions SC | Other Services | 0 | — | A |
| Blackjack Enterprise, Inc. MS | — | 0 | — | — |
| BLACKJACK FARMS DE LA COSTA CENTRAL,INC CA | Agriculture & Forestry | 0 | — | C |
| BLACKJACK PAVING, SEALCOATING AND STRIPING, LLC GA | Manufacturing | 0 | — | D |
| Blackjewel VA | — | 0 | — | — |
| Blackland Building Supply, Inc TX | Retail Trade | 0 | — | C |
| BLACKLAND SERVICES, LLC TX | Mining & Extraction | 0 | — | A |
| Blacklick Energy & Pipeline Services Inc. PA | Construction | 0 | — | A |
| Blackline Cold Storage TX | Transportation & Warehousing | 0 | — | A |
| Blackline Safety USA Corp TX | Manufacturing | 0 | — | F |
| Blackline Systems, Inc. CA | Professional & Technical Services | 25 | $162,783 | — |
| Blackman Inc/New Tech Metals WI | Manufacturing | 0 | — | A |
| BLACKMON MOORING COMPANY, LLC TX | Administrative & Waste Services | 0 | — | F |
| Blackmon Mooring of Austin, LLC TX | Administrative & Waste Services | 0 | — | F |
