| | ABM Tool & Die Inc (Livonia, MI) | |
| | Accu-Craft Inc (Muskegon, MI) | |
| | Accutron Tool Co (Willoughby, OH) | |
| | Acme Tool Co (Erie, MI) | |
| | Acro Tool & Die Co (Lockland, OH) | |
| | Action Die & Tool Inc (Grand Rapids, MI) | |
| | Allan Tool Co (Redford, MI) | |
| | Allegheny Tool & Manufacturing (Meadville, PA) | |
| | Allied Die & Tool Works (Rockford, IL) | |
| | American Tool Craft Inc (Marion, IN) | |
| | Aqua Machine & Tool Inc (Dayton, OH) | |
| | Archer Manufacturing Corp (Chicago, IL) | |
| | Arnold Tool & Die Co (Chesterfield, MI) | |
| | Artisan Tool & Die Corp (Brecksville, OH) | |
| | Associated TAD Inc (East Palestine, OH) | |
