| 0and1 Information Technology | Tehran |
| 1Pezeshk | Tehran |
| A.C.A. Company | Tehran |
| Abadan University of Medical Sciences | |
| Abramad | |
| Academic Center for Education, Culture and Research | |
| Afranet | Tehran |
| Aftab | Tehran |
| Agricultural Biotechnology Research Institute of Iran | |
| Agricultural Research, Education and Extension Organization | |
| Agricultural Sciences and Natural Resources University of Khuzestan | |
| Ahlul Bayt International University | Tehran |
| Ahrar Institute of Technology and Higher Education | |
| Airayvarz | Tehran |
| Al-Mustafa International University | |
| Al-Yar | Tehran |
| Alaodoleh Semnani Education Institute Of Semnan | |
| Alborznic.com, Inc. | Tehran |
| Ale-Taha Institute of Higher Education | |
| Allame Jafari Institute | |
| Allameh Amini High Education Institute | |
| Allameh Dehkhoda Institute of Higher Education | |
| Allameh Feyz Kashani Institute of Higher Education | |
| AlphaAfzaar, Inc. | Tehran |
| Amirkabir College of Management and Technology | |
| Amirkabir University of Technology | |
| Amirkabir University of Technology - Department of Computer Engineering | Tehran |
| Aparat.com | Tehran |
| APIECO | Tehran |
| Apornak Technology | Tehran |
| ARAK Science and Technology Park | Markazi |
| Arak University | |
| Arak University of Medical Science | |
| Aramin Information Technology Co. | Tehran |
| Arana Network | Tehran |
| Arefrayaneh.com | Tehran |
| Arjang Institute of Higher Education | |
| Art University of Isfahan | |
| ArvanCloud | Tehran |
| AryaVista.com | Tehran |
| AryoGen Pharmed | Tehran |
| Asisatech | Tehran |
| AsreTelecom | Tehran |
| Attar Institute of Higher Education | |
| Avajang | Tehran |
| Avanak | Razavi Khorasan |
| Ayandegan Institute of Higher Education | |
| Ayatollah Boroujerdi University | |
| Ayco | Tehran |
| Backtory | Tehran |