MRX

Marex Group Ltd

A London-based financial services firm that helps commodity producers, banks, and hedge funds trade derivatives and commodities through clearing, market-making, and its own technology portal, Neon. It was founded in 2005 as Marex Financial by Marathon Asset Management after the collapse of its parent firm, then merged with the energy broker Spectron in 2011. Fun fact: the name Marex is a modern invention—though some read the Latin "mare" (sea) into it, it's a constructed brand.