| Abbreviation | Definition |
|---|---|
| APECS | Advanced Process Engineering Co Simulator |
| APEG | Associate Parliamentary Engineering Group |
| APEG | Australasian Pacific Engineering Group |
| APEM | Advances in Production Engineering & Management |
| APETS | Advanced Prototype Engineering Technology Symposium |
| APHMEL | Andhra Pradesh Heavy Machinery and engineering Limited |
| APHMEL | Andhra Pradesh Heavy Machinery Engineering Limited |
| APHMEL | Andhra Pradesh Heavy Machinery Engineering Ltd |
| APME | Applied Probability Methods in Engineering |
| APPIE | Association of Powder Process Industry and Engineering |
| APPIE | Association of Powder Processing Industry Engineering |
| APPRAISER | Approach for Perceiving and Promoting Reuse by Awareness In Software Engineering and Reengineering |
| APSEC | Asia Pacific Software Engineering Conference |
| APSL | Approved Product Supplier List |
| APTES | Advanced Protective Technology for Engineering Structures |
| AQE | Advanced Quality Engineering |
| AQE | Air Quality Engineering |
| ARA | ARA terminal used in Railway signalling |
| AREC | Applied River Engineering Center |
| ART | Acoustic resonance technology |