Founded in 2011 as a gallery based on Mount St, Mayfair, in London, Geist established itself as the first official representative of Arturo Di Modica (New York Charging Bull Artist). Over the years Geist has built a reputation as a leading dealer of blue chip works, specialising in David Hockney, Andy Warhol, Salvador Dali and Francis Bacon. Since 2021, the company has committed to being a pure online dealership, aimed at delivering more value to both buyer and seller through reduced fees.