Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
Mayan EDMS - Document management without the headaches.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Nuxeo - Nuxeo provides a hyperscale digital asset platform, enabling organizations to unlock the full value of all enterprise digital assets.
EndNote - Accelerate Your Research. Save time, stay organized, collaborate with colleagues and get published with EndNote 20.
SeedDMS - SeedDMS is an open source document management system based on PHP and MySQL.