Nomix Group Appoints Ben Tatton-Brown as SVP Agency Partnerships and Promotes Mark Grimshaw to EVP Partnerships

Nomix Group has announced two senior appointments as the performance commerce holding company increases its focus on European market expansion and agency revenue growth.

Ben Tatton-Brown joins the company as senior vice president, agency partnerships, while Mark Grimshaw has been promoted from SVP partnerships at Shopnomix to executive vice president, partnerships, at Nomix Group.

Tatton-Brown brings more than two decades of senior commercial experience across European digital advertising markets. He co-founded Amobee, the mobile advertising company acquired by SingTel in 2012 for $321 million, and has held executive leadership positions at WPP, Criteo, Ogury, Blis and Adlook.

His appointment to lead agency partnerships at Nomix Group reflects the company’s aim to build deeper relationships with holding company agency groups and trading desks across Europe.

Tatton-Brown said:

I’ve watched performance marketing mature through search, mobile, programmatic and social. What Nomix Group is building sits at the next inflection point: commerce that operates across surfaces, measured on actual transactions rather than proxies. That’s a conversation agencies are ready to have, and I’m here to have it with them.

Grimshaw has worked alongside Nomix Group CEO Colin Jeavons for several years. He served as SVP partnerships at NTENT and Mocha Global before joining Shopnomix in 2023.

His promotion to EVP partnerships expands his remit from a single operating division to the full Nomix Group portfolio, which includes Shopnomix, Fanomix, Appnomix, Pronomix and Creatornomix.

Colin Jeavons, CEO of Nomix Group, said:

Europe is where the agency conversation about agentic commerce is moving fastest. Ben understands how agencies actually operate and how to build partnerships that align with the way agencies plan, buy and scale media. That matters as agencies rethink how they drive performance and commerce outcomes in a rapidly evolving market. Mark has been central to our commercial growth since before Nomix Group existed. This is the right team for this moment.

The appointments come as Nomix Group expands its European agency development activity. The company said its portfolio of performance commerce brands collectively facilitated more than $4 billion in verified product transactions in 2025.

About Nomix Group

Nomix Group is a performance commerce holding company focused on helping brands and publishers capture purchase intent across digital channels.

Its divisions include Shopnomix for intent-driven conversion, Appnomix for mobile publisher monetization, Pronomix for programmatic demand capture, Fanomix for AI-powered video and UGC, and Creatornomix for creator-led commerce.

The group says its divisions collectively drove more than $4 billion in gross merchandise value in 2025.For more information, visit Nomix Group.

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