| Atlas Tag & Label WI | Manufacturing | 0 | — | A |
| Atlas Technical Consultants, LLC TX | Professional & Technical Services | 4 | $139,754 | — |
| Atlas Tool and Die Works Inc IL | Manufacturing | 0 | — | F |
| Atlas Tool Works IL | Manufacturing | 0 | — | F |
| Atlas Towing Services, Inc. CA | Transportation & Warehousing | 0 | — | D |
| Atlas Transfer & Storage Company CA | Transportation & Warehousing | 0 | — | A |
| Atlas Tube IL | Manufacturing | 0 | — | B |
| Atlas United Corp AL | Construction | 1 | $70,000 | — |
| Atlas Van Lines, Inc. IN | Transportation & Warehousing | 0 | — | A |
| Atlas Vineyard Management, LLC OR | Agriculture & Forestry | 0 | — | A |
| Atlas Vineyard Managment, LLC CA | Agriculture & Forestry | 0 | — | D |
| Atlas Waste Management Inc. CA | Administrative & Waste Services | 0 | — | A |
| ATLAS WELDING & BOILER REPAIR, INC. NY | Other Services | 0 | — | D |
| Atlas Welding and Fabrication, DE | Construction | 0 | — | F |
| Atlas-SSI, Inc. LA | Manufacturing | 0 | — | B |
| Atlas-SSI, Inc. MS | Manufacturing | 0 | — | A |
| Atlassian CA | Professional & Technical Services | 0 | — | A |
| Atlassian TX | Professional & Technical Services | 0 | — | A |
| Atlassian US, Inc. CA | Professional & Technical Services | 149 | $192,387 | — |
| Atlassian US, Inc. WA | — | 0 | — | — |
| Atlasta Solar Center LLC CO | Construction | 0 | — | F |
| Atlee Gleaton Eye Care ME | Healthcare & Social Assistance | 1 | $100,000 | — |
| Atlink Communications Inc TX | Professional & Technical Services | 1 | $80,330 | — |
| AtLink Services LLC OK | Information & Media | 0 | — | F |
| ATLM LLC NY | Arts & Entertainment | 1 | $70,000 | — |
| ATM Solutions inc OH | Administrative & Waste Services | 0 | — | A |
| ATM-175 FL | Construction | 0 | — | A |
| ATM-241 FL | Construction | 0 | — | A |
| ATMANICA Technologies LLC TX | Professional & Technical Services | 1 | $99,000 | — |
| ATMAX Equipment Co. FL | Manufacturing | 0 | — | F |
| ATMECS GLOBAL INC. CA | Professional & Technical Services | 3 | $91,456 | — |
| Atmel Corporation CA | — | 0 | — | — |
| ATMI Indy, LLC IN | Manufacturing | 0 | — | C |
| Atmo Biosciences Inc CA | Manufacturing | 1 | $124,446 | — |
| Atmore Industries AL | Manufacturing | 0 | — | F |
| ATMOS ENERGY CO | Utilities | 0 | — | F |
| ATMOS ENERGY KS | Utilities | 0 | — | F |
| ATMOS ENERGY KY | Utilities | 0 | — | F |
| ATMOS ENERGY LA | Utilities | 0 | — | F |
| ATMOS ENERGY MS | Utilities | 0 | — | C |
| ATMOS ENERGY TN | Utilities | 0 | — | F |
| ATMOS ENERGY TX | Utilities | 0 | — | F |
| ATMOS ENERGY VA | Utilities | 0 | — | F |
| Atmosic Technologies, Inc. CA | Manufacturing | 1 | $157,680 | — |
| Atmosphere Design Group, LLC NY | Professional & Technical Services | 1 | $80,000 | — |
| Atmosphere Heat Treat MI | Manufacturing | 0 | — | F |
| AtmosZero, Inc. CO | Professional & Technical Services | 1 | $123,600 | — |
| ATN Hoelzel LP TN | Professional & Technical Services | 1 | $85,000 | — |
| ATN International Telecom Group LLC MA | Information & Media | 1 | $125,091 | — |
| Atoco, Inc. CA | Professional & Technical Services | 1 | $76,586 | — |
