Mr. Arah is a Co-founder and Portfolio Manager at Marathon-London. He co-founded Marathon-London in 1986 and is responsible for investments in Japan.

Previous to Marathon-London, Mr. Arah was recruited by Goldman Sachs to become senior Japan analyst with emphasis on market strategy.

Prior to this, he worked at Warburg, Rowe & Pitman (then Rowe & Pitman). He originally joined the London office in 1982 and worked on the UK market. In 1983, Mr. Arah moved to their Japan desk and was transferred to Tokyo to cover Japan as an analyst. He was appointed senior analyst in mid-1984.

Mr. Arah received an MA from Oxford University.