The agency beat Profero and Golley Slater in a three-way shoot-out after a review, conducted by Brother's marketing department through the AAR, that began in September.
TMW will be responsible for implementing Brother's first pan-European digital advertising strategy.
Brother has used agencies on a market-by-market basis to create its digital work, with the Manchester-based Code Computerlove handling the UK account. This relationship is unaffected.
Last year, Brother appointed Grey London to oversee its pan-European advertising business, as well as its branding, trade support and internal and external PR.
The agency created the recent "labels" campaign in which people who live along Route 66 described themselves. It ran on TV and online.
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