Marc started his career in the aviation industry first with KLM then Lufthansa in charge of marketing as well as customer services based in Lebanon.
In 2002, he moved to Riyadh with Swiss Port to lead strategy and implementation for marketing, research, business development and structures. In 2003, he joined FP7/McCanns in Riyadh as Group Account Director managing a portfolio including Arab National Bank, Jadwa, Emirates Bank, Al Safi Danone, Carrier, Kingdom Center, Bravo Telecom, Mobily and Ford. He moved to Drive/Dentsu Riyadh in 2009 as Deputy Managing Director handling Mobily, Nada Juice, Riyadh Bank and Microsoft Arabia alongside business development responsibilities across the Kingdom.
Marc was appointed KSA CEO of Arab For Advertising, GREY Worldwide in February 2012 that later became WHY? in March 2021.