The American regulator CTFC (he Commodity Futures Trading Commission) issued a warning about a number of fake Forex, CFD and crypto companies that are operating on US soil. Here is a list:
Bitfx24option dot com, Fidelityfxtrade dot com, Granttradefx dot com, iMarketsserviceFX dot com, Toptradecapitalfx dot com, Westtechtrade dot om, Westintrade dot com, Yobcryptotrade24 dot com, Zenithoptionstrade dot net, and Zenithtradermarkets dot com.
What is more, many of these “companies” claim to be regulated by the US National Futures Association, which is not true.
The CTFC also banned Goldman Global Investment Funds Ltd., Merryl Morgan, Sumtrades dot com, Swiss FX Trade, and Ultracapitals for fraud.
Source
Always double check the information your broker provides about their registration with the information available at the respective regulator, those lists of regulated companies are public!