| CompanyID | Company | Description | State |
| 988 | Acutek Automation | Controls and automation integration | OH |
| 527 | All Trades Inc. | All Trades is a full service industrial contractor. All Trades is a premier source for turnkey plant relocations. General Contractor, Electrical Contractor, Rigging & Millwright Service, Process Piping, Laser Alignments, Power Quality, Power Factor | IN |
| 289 | Allied 1 Resources Corp | Industrial contractors for manufactures in the fields of: mechanical, electrical, machinery movers, design build, all type piping, carpentry, rigging work of all kinds. | MO |
| 3056 | Al-Seedawi Sweets Factories Co | Automated Sweets Production | States |
| 3199 | AMS Alltronics | Industrial Electronic and Electric Products | Ontario |
| 1768 | ATCO BALERS | MANUFACTURER OF VERTICAL CARDBOARD BALING MACHINES FOR RECYCLING CARDBOARD | AL |
| 3475 | Atlanta Technical & Engineering Services | ATES is a service company focused on providing and managing technical consulting / engineering design services related to hardware (Process Instrumentation Reconditioners )and the software development of Digital Process Control Systems (I&C), Burner | GA |
| 30 | Automated Systems Engineering (ASE) | ASE provides detailed electrical, instrumentation & controls engineering services as well as systems integration services for industrial and municipal companies. | OH |
