MO
About
Former CEO of Visa UK and Ireland, the company’s second most important market. During Mr. O'Brien's time as CEO, Visa’s business doubled from $250 to $600 million with market share of debit card payments increasing to 97% Marc has been a key advisor on some of the most exciting startups in the UK, including Revolut, Britain’s first digital bank unicorn Marc also advised the UK's Royal Mint on the possible creation of a Gold backed Crypto Token
Position in the VCSift Database
- • 1,913 investors hold the Founder & CEO role in VCSift. Marc O'Brien is one of them.
- • 8,972 investors are based in London, England, United Kingdom.
Data sourced from 410,343 investor profiles. Updated July 2026.
Investment Focus
- Location
- London, UK
Contact Information
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