Having gone from staunch Crypto sceptic recently to Coinbase explorer, I recently discovered Uphold. They seem to be much newer and based in Old Street. They offer integrations including “hedged bitcoin” that claims backtesting has received 90% of Bitcoin gains with only a third of the losses as well as a lending feature that lets you earn interest on your cryptos while the capital value appreciates.
My due diligence is looking good so far. https://uphold.com