| Advanced Silicon Carbide Materials HI | Manufacturing | 0 | — | A |
| Advanced Sleep Medicine Services, Inc. CA | — | 0 | — | — |
| ADVANCED SOLAR PRODUCTS NJ | Construction | 0 | — | A |
| ADVANCED SOLUTIONS & CONTROLS LLC OH | Manufacturing | 0 | — | F |
| Advanced Sports Enterprises NC | — | 0 | — | — |
| Advanced Sports Enterprises, Inc. (ASE) PA | — | 0 | — | — |
| Advanced Steel Technology GA | Manufacturing | 0 | — | F |
| Advanced Sterilization Products, Inc. CA | Manufacturing | 3 | $149,884,254 | — |
| Advanced Stimulation Technologies TX | Mining & Extraction | 0 | — | A |
| Advanced Stucco Design Inc CO | Construction | 0 | — | A |
| Advanced Student Transportation, Inc. DE | Transportation & Warehousing | 0 | — | A |
| Advanced Student Transportation, Inc. PA | Transportation & Warehousing | 0 | — | A |
| Advanced Subacute Rehab Center NJ | Healthcare & Social Assistance | 0 | — | F |
| Advanced Sunflower, LLC SD | Agriculture & Forestry | 0 | — | A |
| Advanced Supply Chain International, LLC AK | Transportation & Warehousing | 0 | — | A |
| Advanced Surgery & Wellness IL | Healthcare & Social Assistance | 1 | $300,000 | — |
| Advanced System Development, Inc. (ASD) VA | — | 0 | — | — |
| Advanced Systems Group, LLC CA | Professional & Technical Services | 0 | — | A |
| ADVANCED SYSTEMS INC FL | Construction | 0 | — | A |
| Advanced Systems Portable Restrooms, Inc. OR | Administrative & Waste Services | 0 | — | F |
| Advanced Teaching Concepts, Inc. MI | Healthcare & Social Assistance | 0 | — | A |
| Advanced Technologies & Laboratories International Inc. TN | Administrative & Waste Services | 0 | — | A |
| Advanced Technologies in Electrical and Communications, Inc. IN | Construction | 0 | — | F |
| ADVANCED TECHNOLOGY CONSULTING SERVICE, INC. NJ | Professional & Technical Services | 4 | $95,640 | — |
| ADVANCED TECHNOLOGY GROUP USA, INC. NJ | Professional & Technical Services | 8 | $105,877 | — |
| Advanced Technology Group, Inc. OR | Construction | 0 | — | B |
| ADVANCED TECHNOLOGY INNOVATION CORPORATION MA | Professional & Technical Services | 1 | $126,214 | — |
| Advanced Technology Laboratories CA | Professional & Technical Services | 0 | — | A |
| Advanced Technology Laboratories Inc. NV | Professional & Technical Services | 3 | $55,273 | — |
| Advanced Technology Products, Inc. OH | Manufacturing | 0 | — | D |
| Advanced Technology Services WI | Other Services | 0 | — | D |
| Advanced Technology Services, Inc AR | Other Services | 0 | — | F |
| Advanced Technology Services, Inc GA | Other Services | 0 | — | A |
| Advanced Technology Services, Inc IL | Other Services | 0 | — | A |
| Advanced Technology Services, Inc MS | Other Services | 0 | — | B |
| Advanced Technology Services, Inc OK | Other Services | 0 | — | A |
| Advanced Technology Services, Inc TX | Other Services | 0 | — | A |
| Advanced Telecom Services Co. TX | Professional & Technical Services | 1 | $91,000 | — |
| Advanced Telemetry Systems, Inc. MN | Manufacturing | 0 | — | A |
| ADVANCED TEST MANAGEMENT AND CERTIFICATION LABS, INC CA | Professional & Technical Services | 1 | $78,479 | — |
| Advanced Textile Composites Inc PA | Manufacturing | 0 | — | A |
| Advanced Textile Corporation PA | Manufacturing | 0 | — | A |
| Advanced Therapies LLC PA | Professional & Technical Services | 3 | $102,919 | — |
| Advanced Thermal Systems, Inc. NY | Manufacturing | 0 | — | F |
| Advanced Thermoplastic Composites, LLC ID | Manufacturing | 0 | — | F |
| ADVANCED TIRE SERVICE LLC FL | Retail Trade | 0 | — | D |
| ADVANCED TOOLING INC WI | Manufacturing | 0 | — | A |
| Advanced Tooling Specialists, Inc WI | Manufacturing | 0 | — | D |
| Advanced Tooling Systems Inc. MI | Manufacturing | 0 | — | F |
| Advanced Traffic Control, Inc. IA | Construction | 0 | — | F |
