| 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 | 14 | $115,653 | - |
| 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 | 5 | $159,780 | - |
| Atkore Plastics Southeast SC | - | 0 | - | - |
| Atlan Inc DE | Professional & Technical Services | 1 | $170,000 | - |
| Atlanta Attachment Company GA | - | 0 | - | - |
| Atlanta Beverage Company GA | Wholesale Trade | 0 | - | F |
| Atlanta Bonded Warehouse Corporation GA | Transportation & Warehousing | 0 | - | A |
| Atlanta Falcons Football Club, LLC GA | Arts & Entertainment | 1 | $41,097 | - |
| Atlanta Flooring Design Centers, Inc. GA | Wholesale Trade | 0 | - | C |
| Atlanta Gas Light Company GA | Utilities | 0 | - | F |
| Atlanta International School GA | Educational Services | 1 | $75,117 | - |
| Atlanta Journal Constitution LLC GA | Information & Media | 1 | $135,000 | - |
| Atlanta Kitchen Equipment, Inc. GA | Manufacturing | 0 | - | D |
| Atlanta Lanehart Electric Co., Inc. GA | Construction | 0 | - | F |
| Atlanta Network Technologies, Inc. GA | Professional & Technical Services | 2 | $87,500 | - |
| Atlanta Paving & Concrete Construction GA | Construction | 0 | - | D |
| Atlanta Phoenix Basketball, LLC GA | Information & Media | 1 | $49,546 | - |
| Atlanta Trading & Eng. Consulting, LLC NJ | Professional & Technical Services | 5 | $86,540 | - |
| Atlanta Trading & Engineering Consulting LLC NJ | Professional & Technical Services | 2 | $91,062 | - |
| Atlantic & Pacific Grill Associates, L.L.C. c/o Fourth Wall Restaurants, LLC (Park Avenue Café) NY | - | 0 | - | - |
| Atlantic & Pacific Tea Company (c/o Superfresh Food Markets, Inc.) MD | - | 0 | - | - |
| Atlantic Bottling Company IA | Manufacturing | 0 | - | F |
| Atlantic Bulk Carrier Corp. VA | Transportation & Warehousing | 0 | - | A |
| Atlantic Casting & Engineering NJ | Manufacturing | 0 | - | F |
| Atlantic City Electric NJ | Utilities | 0 | - | C |
| Atlantic City Electric, An Exelon Company PA | Utilities | 1 | $78,166 | - |
| Atlantic City Linen Supply LLC* CT | - | 0 | - | - |
| Atlantic Coast Automotive VA | Retail Trade | 0 | - | C |
| Atlantic Coast Enterprises, LLC FL | Other Services | 0 | - | B |
| Atlantic Coast Media Group NJ | - | 0 | - | - |
| Atlantic Coast Recycling Ocean LLC NJ | - | 0 | - | - |
