A French native, Holdsworth will be based at the agency's London office and will responsible for supporting and growing inVNT’s international client relationships.
She speaks fluent English and German, and has experience executing multi-million dollar brand experiences for Fortune 100 and 500 companies.
Scott Cullather, global managing partner for inVNT, said: "We are delighted to have Muriel join inVNT as our strategic accounts manager in our London office. Her experience with global brands in the automotive, telecom, aerospace and healthcare industries will be invaluable to our strategic growth plan.
"Muriel embodies our challenger mindset and belief system, and we are confident that her talents, our service offerings, and the way we deliver value to our clients are the perfect combination."