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Chris Barnes from the University of Florida has been investigating funding organizations, and has talked about discussed this on an Apps & Tools call and demonstrated work to date at the VIVO Hackathon in October, 2014. His work involves supplementing FundRef organizations with additional information that will provide more specific geography and potentially support generating maps of funding sources from VIVO data.
There are further longstanding and new efforts to identify stable identifiers for organizations:
Please add any new information to the above list.