| Organization Name | Site Name | Site URL | Type of Organization | Country | Technology | Version |
|---|---|---|---|---|---|---|
| a degli Studi del Molise | unimol.it | academic | Italy | DSpace | 1.x | |
| A Estrada. Miscelanea Historica e Cultural | aestrada.com | academic | Spain | DSpace | 1.x | |
| A.O. Kovalevskiy Institute of Biology of the Southern Seas, Sevastopol | ibss.org.ua | research center | Ukraine | DSpace | 1.x | |
| A.O. Kovalevsky Institute of Marine Biological Research (IMBR) | A.O. Kovalevsky Institute of Marine Biological Research Open access repository | academic | Russia | DSpace | 6.x | |
| AAB College | AAB College | academic | Albania | DSpace | 6.x | |
| AADEM | aadem.ro | medical center | Romania | DSpace | 1.x | |
| Aalto University | Aaltodoc | academic | Finland | DSpace | 3.x | |
| Abdullah Gül University | Abdullah Gül University Institutional Repository | agu.edu.tr | academic | United States | DSpace | 6.x |
| Aberystwyth University | aber.ac.uk | academic | United Kingdom | DSpace | 4.x | |
| Academia Colombiana De Ciencias Exactas Fisicas Y Naturales | Repositorio ACCEFYN | academic | Colombia | DSpace | 6.x | |
| Academia de Studii Economice a Moldovei | Institutional Repository of Economic Knowledge (IREK - AESM) | academic | Moldova | DSpace | 5.x | |
| Academia Diplomática del Perú Javier Pérez de Cuéllar | Repositorio Institucional de la Academia Diplomática del Perú Javier Pérez de Cuéllar | adp.edu.pe | academic | Peru | DSpace | 6.x |
| Academia Sinica | sinica.edu.tw | academic | Taiwan | DSpace | 1.x | |
| Academic Library Association of Niigata | niigata-u.ac.jp | public/national library | Japan | DSpace | ||
| Academician Y.A. Buketov Karaganda State University | KSU Repozitory | academic | Kazakhstan | DSpace | 3.x | |
| Academy of Public Administration under the aegis of the President of the Republic of Belarus | rep.pac.by | other | Belarus | DSpace | ||
| Academy of Science of South Africa (ASSAf) | Academy of Science of South Africa Research Repository | assaf.org.za | government | South Africa | DSpace | 5.x |
| Academy of the Ministry of Internal Affairs of the Republic of Belarus | Scientific repository of the Academy of the Ministry of Internal Affairs of the Republic of Belarus | academic | Belarus | DSpace | 6.x | |
| Acao Educativa | bdae.org.br | non-profit | Brazil | DSpace | 1.x | |
| ACE Publisheep | publisheep.com | other | United States | DSpace | 1.x | |
| Acesso Livre a Informacao Cientafica da Embrapa (Alice) | Alice: Scientific Information of Embrapa | government | Brazil | DSpace | 5.x | |
| ACET | research | academic | India | DSpace | 4.x | |
| Acıbadem Mehmet Ali Aydınlar University | DSpace@Acibadem | acibadem.edu.tr | academic | Turkey | DSpace | 4.x |
| ADA University | ADA Library Digital Repository | ada.edu.az | academic | Azerbaijan | DSpace | 5.x |
| Adam Mickiewicz University, AMUR | amu.edu.pl | academic | Poland | DSpace | 1.x | |
| Organization Name | Site Name | Site URL | Type of Organization | Country | Technology | Version |