US investors permitted
Stronghold is an American cryptocurrency exchange. There are many American cryptocurrency exchanges and USA is really one of the most important countries when it comes to cryptocurrencies. Other American cryptocurrency exchanges include Coinbase, Paxful, Gate.io, Bitquick, but there are also many others.
Stronghold does not charge any maker fees which is of course very beneficial for all the makers out there.
A detailed review of Stronghold will be available here in the near future.