| Ace Machine Memphis TN | Wholesale Trade | 0 | — | F |
| Ace Machine Shop, Inc. CA | Manufacturing | 0 | — | A |
| ACE Maintenance and Service INC TX | Administrative & Waste Services | 0 | — | D |
| Ace Management Services, Inc IN | Management of Companies | 0 | — | A |
| Ace Manufacturing Industries, Inc. WI | Manufacturing | 0 | — | F |
| Ace Mart Restaurant Supply Co., Inc. TX | Wholesale Trade | 0 | — | A |
| Ace Mechanical Contractors, Inc. UT | Construction | 0 | — | A |
| Ace Midwest IL | Manufacturing | 0 | — | F |
| Ace Ortho Solutions, LLC NE | Manufacturing | 1 | $55,000 | — |
| Ace Parking CA | — | 0 | — | — |
| ACE Partnership LLC NJ | Manufacturing | 0 | — | F |
| Ace Personnel KS | Administrative & Waste Services | 0 | — | F |
| Ace Piano Moving Company, Inc. DBA Beltway Movers MD | Transportation & Warehousing | 0 | — | D |
| Ace Pipe Cleaning MO | Administrative & Waste Services | 0 | — | B |
| Ace Pipe Cleaning TX | Administrative & Waste Services | 0 | — | C |
| ACE Precision America, INC GA | Construction | 0 | — | A |
| Ace Precision Industries Inc OH | Manufacturing | 0 | — | F |
| Ace Precision Machining, LLC WI | Manufacturing | 0 | — | D |
| ACE Premier Logistics, LLC GA | Transportation & Warehousing | 0 | — | A |
| Ace Ready Mix-Harrisburg SD | Manufacturing | 0 | — | F |
| Ace Roofing LLC MT | Construction | 0 | — | F |
| Ace Saginaw Paving MI | Construction | 0 | — | D |
| Ace Sanitary OH | Manufacturing | 0 | — | A |
| ACE Septic Tank Service of Tampa Inc FL | Administrative & Waste Services | 0 | — | F |
| ACE SERVICE CENTER, INC. NY | Other Services | 0 | — | A |
| ACE SOFTWARE, LLC AZ | Professional & Technical Services | 1 | $99,424 | — |
| ACE Solid Waste, Inc. MN | Administrative & Waste Services | 0 | — | F |
| ACE STEEL ERECTION, INC MI | Construction | 0 | — | A |
| ACE Steel Supply LLC TX | Wholesale Trade | 0 | — | F |
| Ace Technologies GA | Construction | 0 | — | C |
| Ace Telephone Association DBA AcenTek MI | Information & Media | 0 | — | A |
| Ace Telephone Association DBA AcenTek MN | Information & Media | 0 | — | A |
| Ace Transfer & Storage OK | Transportation & Warehousing | 0 | — | F |
| Ace Tree Enterprise Inc. CA | Administrative & Waste Services | 0 | — | D |
| Ace Truck Equipment Co. OH | Manufacturing | 0 | — | A |
| Ace Truck of West Virginia Inc. DBA Baker Truck Equipment Co. WV | Manufacturing | 0 | — | A |
| Ace Welding and Trailer Co. TX | Other Services | 0 | — | F |
| Ace Wire & Cable Co. Inc. NY | Wholesale Trade | 0 | — | F |
| ACE WIRE SPRING & FORM CO., INC. PA | Manufacturing | 0 | — | A |
| ACE World Companies, Ltd TN | Manufacturing | 0 | — | A |
| ACE World Companies, Ltd TX | Manufacturing | 0 | — | F |
| ACE World Companies, Ltd WI | Manufacturing | 0 | — | A |
| Ace World Wide Moving, Inc CA | Transportation & Warehousing | 0 | — | A |
| Ace World Wide of Nevada WI | Transportation & Warehousing | 0 | — | A |
| Ace World-Wide Moving & Storage Company PA | Transportation & Warehousing | 0 | — | A |
| ACE- Pahrump NV | Retail Trade | 0 | — | C |
| Ace/Avant Concrete Const. Co. NC | Construction | 0 | — | F |
| Ace/Avant Concrete Construction Co. Inc. NC | Construction | 0 | — | D |
| ACEABLE IT LLC TX | Professional & Technical Services | 4 | $83,934 | — |
| ACECO LLC MD | Construction | 0 | — | A |