The world’s best FX bank for client service 2026: Marex

Marex has reshaped what corporate clients can expect from an FX provider, moving the relationship beyond execution and into the wider territory of treasury advice, payments and liquidity. The result is a client service model built less around transaction efficiency and more around the depth and durability of the relationships themselves.

The starting point for Marex has been a deliberate rejection of the industry’s traditional approach to measuring client service. Rather than defining quality through operational metrics such as response times, platform uptime or execution efficiency, the firm argued that service should be judged by the longevity of client relationships and by a demonstrable record of helping treasury teams navigate increasingly complicated cash management, liquidity and risk challenges.

This philosophy has shaped how the business is organised.

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