Barclays: We’re Experimenting with Both Permissioned and Permissionless BlockchainsWith that said, large financial institutions have become extremely interested in Bitcoin (or at least blockchain technology) over the past year. While many in the Bitcoin community believe that these banking institutions are not interested in using a decentralized, permissionless blockchain, that does not appear to be the case 100 percent of the time. At Consensus 2015, Barclays’s Simon Taylor explained that the bank is simply interested in finding practical use cases for any sort of new financial technology.
http://insidebitcoins.com/news/barclays-were-experimenting-with-both-permissioned-and-permissionless-blockchains/36008