Online reports that Castle, an automated Bitcoin financial solution, announced that it has completed a US$1 million Pre-Seed round of financing, led by Boost VC, with Winklevoss Capital, co-founder of cryptocurrency exchange Gemini, as well as Park Rangers Capital, Epoch VC and some angel investors participating. Castle is currently mainly targeted at small and medium-sized businesses, and its automated purchase and sale solutions allow these companies to use Bitcoin to fight inflation and protect and increase wealth.