DFG - Deutsche Forschungsgemeinschaft - Open Access (German Research Foundation - Open Access)

From Google's English:

"In promoting Open Access, the German Research Foundation works closely with partners from Germany, Europe and the world. In the context of the Alliance initiative "Digital Information", the DFG has intervened, among other things, to introduce an indispensable secondary publication right. Through organizations and networks such as Knowledge Exchange, Science Europe and the Global Research Council, the DFG is also involved in the European and international context in shaping the transformation of scientific publishing from the subscription to the open access model. In spring 2016, the DFG signed the Expression of Interest of the OA2020 initiative."