The OW2 Consortium (formed in January 2007 from the merger of the ObjectWeb Consortium and Orientware) is a not-for-profit, international consortium mainly devoted to producing open source middleware, EAI, e-business, clustering, grid computing. It was founded by INRIA, Groupe Bull, and France Télécom. OW2 aims at developing high-quality open-source components for distributed applications (Web applications, grid computing, clusters, business integration, nomadic systems, etc.).
At the end of 2009, OW2 merged with the Open Solutions Alliance (OSA), a primarily U.S.-based consortium of open source software companies with the mission of fostering the adoption of open source software in enterprise level companies.
Read more about OW2 Consortium: Mission, Open Source Cloudware Initiative