| Athlos Academy MN | - | 0 | - | - |
| Athna Facility Services, Inc. - AFSI TX | - | 0 | - | - |
| AtHoc (Division of BlackBerry) CA | Professional & Technical Services | 1 | $123,000 | - |
| Athreya, INC. NJ | Professional & Technical Services | 10 | $127,000 | - |
| ATI CA | Manufacturing | 0 | - | F |
| ATI OR | Manufacturing | 0 | - | D |
| ATI WI | Manufacturing | 0 | - | C |
| ATI Air Transport Intl Inc. OH | Transportation & Warehousing | 0 | - | A |
| ATI Albany Operations OR | - | 0 | - | - |
| ATI Career Training Center #130 FL | - | 0 | - | - |
| ATI Career Training Center #135 FL | - | 0 | - | - |
| ATI Career Training Center #140 FL | - | 0 | - | - |
| ATI Career Training Center - N. Richland Hills TX | - | 0 | - | - |
| ATI Career Training Center#275 TX | - | 0 | - | - |
| ATI Flat Rolled Products PA | - | 0 | - | - |
| Ati Holdings, LLC IL | Healthcare & Social Assistance | 32 | $96,000 | - |
| ATI Industrial Automation NC | Manufacturing | 0 | - | F |
| ATI Restoration, LLC. AZ | Construction | 0 | - | F |
| ATI Restoration, LLC. CA | Construction | 0 | - | F |
| ATI Specialty Materials, LLC NC | Manufacturing | 0 | - | A |
| Atico Investments, LLC FL | - | 4 | $54,412 | - |
| Atira Hospitality, LLC IL | Accommodation & Food Services | 1 | $120,000 | - |
| Atithi Group Connecticut LLC CT | - | 1 | $99,000 | - |
| ATK ID | - | 0 | - | - |
| ATK (Eagle Industries Unlimited) MO | - | 0 | - | - |
| ATK AudioTek CA | - | 0 | - | - |
| ATK Energetic Systems VA | - | 0 | - | - |
| ATK Mission Systems Group Space Division NASA Langley Facility VA | - | 0 | - | - |
| ATK Space Systems CA | Manufacturing | 0 | - | F |
| Atkins Building Services & Products Inc MO | Administrative & Waste Services | 0 | - | A |
| Atkins Care Center, Inc. AR | Healthcare & Social Assistance | 0 | - | - |
| Atkins Kroll, INC. GU | Retail Trade | 2 | $67,153 | - |
| Atkins North America, Inc. FL | Professional & Technical Services | 6 | $93,433 | - |
| Atkins Sheep Ranch CA | Construction | 0 | - | - |
| Atkinsons' Market ID | Retail Trade | 0 | - | C |
| AtkinsRealis USA Inc. FL | Professional & Technical Services | 26 | $122,974 | - |
| AtkinsRéalis USA Inc. FL | Professional & Technical Services | 2 | $131,875 | - |
| Atkore CA | Manufacturing | 0 | - | F |
| Atkore IN | Manufacturing | 0 | - | F |
| Atkore MA | Manufacturing | 0 | - | F |
| Atkore MO | Manufacturing | 0 | - | F |
| Atkore OR | Manufacturing | 0 | - | F |
| Atkore WI | Manufacturing | 0 | - | F |
| Atkore International FL | - | 0 | - | - |
| Atkore International AZ | - | 0 | - | - |
| Atkore International PA | - | 0 | - | - |
| Atkore Management LLC IL | Manufacturing | 6 | $147,985 | - |
| Atkore Plastics Southeast SC | - | 0 | - | - |
| Atlan Inc DE | Professional & Technical Services | 2 | $130,250 | - |
| Atlanta Attachment Company GA | - | 0 | - | - |
