Yes, the bigX exchange is regulated.
bigX® is the trading name of Digtal Street OÜ, a company incorporated and registered in Estonia under the number 14625844 and with its registered address at Tornimae 5, Tallinn 10145, Estonia.
DigitalStreet OÜ is a regulated virtual currency exchange and virtual currency wallet service provider licensed by the Estonian Financial Intelligence Unit. The Virtual Currency Exchange Service License number is FVR001372 and covers services of exchanging a virtual currency against a fiat currency. The license number for a Virtual Currency Wallet Service is: FRK001253.