The FCA has approved B2C2 to offer trading in contracts for difference (CFDs) for institutional clients so in effect allowing a regulated company to offer exposure to unregulated Cryptos. 

By using CFDs it will be possible to get leveraged exposure to cryptos without the need to have to store or actually deal in physical Cryptos so removing the need for a third-party custodian. With offices in London and Tokyo B2C2 was set up in 2015 by and is very active in the OTC market.
https://www.financemagnates.com/cryptocurrency/...n=31.01.19