The Financial Conduct Authority (FCA) is a quasi-governmental agency of UK which was created as a successor to the Financial Services Authority (FSA). This body is responsible for regulating firms that provide financial services for consumers of all types (including investors and individual traders) and to maintain the integrity of the financial markets in the UK. Basically the FCA focuses on the regulation of the conduct and integrity of the companies that provide financial services in the country (including those that are subject to supervision by the PRA). Like its predecessor the FSA, FCA is structured as a company limited by guarantee.
This entity is also responsible for the prudential regulation of small firms of the financial sector that do not fall under the jurisdiction of the Prudential Regulation Authority (PRA), such as Forex brokers.