The independent marketing group reached a total revenue growth of $104 million.
The win follows a six-month competitive pitch.
The design agency will merge with MSQ's existing brand design agency, Holmes & Marchant, creating a new entity under the Elmwood name.
The marketing organisation reported US$7.7 million of earnings before tax deductions over a six-month period.
The account will be run out of MSQ’s London office, with support from MSQ global hubs in Asia and North America.
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