Some CFD & forex brokers are categorized as being located in unknown locations simply because they do not state where their head office is. It is difficult for us to say what the reason for this is, but it may be because the broker is not properly regulated in the country it is operating in, or that it has been moving between countries.
A CFD broker that does not state which jurisdiction it is based in may be seen as somewhat questionable. The jurisdiction will be an important issue in case of any disputes between the broker and the trader. We therefore recommend asking the broker for documentation about where it is located before signing up with such a broker.