R. J. O'Brien (UK) Limited is the UK-based affiliate of R.J. O'Brien & Associates, the oldest and largest independent futures brokerage and clearing firm in the United States, founded in 1914. The UK entity provides institutional clients throughout Europe, the Middle East, and Africa (EMEA) with a comprehensive suite of services, including trade execution, clearing for exchange-traded derivatives, risk management, and access to global futures and options markets. It caters to a professional client base that includes other financial institutions, corporations, and professional traders.

Founded in

United Kingdom