| Abbreviation | Definition |
|---|---|
| ATR | Albemarles Technology Resource |
| ATRC | Academic Technology Resource Center |
| ATRC | Adaptive Technology Resource Centre |
| ATRC | Advanced Technology Research Center |
| ATRC | Assistive Technology Resource Centers |
| ATRE | Asian Technology Roundtable Exhibition |
| ATRP | Agricultural Technology Research Program |
| ATRU | Application Technology Research Unit |
| ATS | Advanced Technology Services |
| ATS | American Technology Services |
| ATS | Applied Technology Solutions |
| ATS | Association Technology Solutions |
| ATSA | Accountants Technology Showcase Australia |
| ATSB | Astronautic Technology Sdn Bhd |
| ATSC | Academic Technology Support Center |
| ATSC | Administrative Technology Service Center |
| ATSC | Advanced Technology Studies Centre |
| ATSC | Advanced Technology Systems Company |
| ATSI | Advanced Technology Services International |
| ATSI | Applied Technology Systems Inc |