Cummins & Partners appoints Callum Walker general manager

By AdNews | 12 November 2025
 

Independent creative agency Cummins & Partners has appointed Callum Walker general manager. 

Walker joins the leadership team with more than 20 years of experience across Australia and New Zealand, having worked with brands including Optus, Entain, Lexus, Contact Energy, Partners Life, adidas and McDonald’s. 

He was the head of business management at Special New Zealand, previously working as the client service director at M+C Saatchi, group account director at Iris Sydney and senior account director at Clemenger BBDO.

“Callum’s appointment strengthens our ability to deliver integrated, high-impact work for ambitious brands,” said Cummins & Partners founder Sean Cummins. 

Cummins & Partners has brands including McCain, Snackbrands, and Stellantis. 

“He shares our belief that creativity and strategy must work hand in hand — especially in an era where AI and automation are transforming how brands engage audiences.” said CEO Ben McCallum. 

“Technology will take every brand to a similar place. 

“The difference lies in how we interpret data and make it distinctive — how we apply human creativity and strategic experience to create work that earns attention and drives outcomes.” 

“Cummins & Partners has an incredible 30-year legacy.  

“It’s the original innovative independent, bringing creative and media back together to create iconic work for clients.   

“I’m excited about how we apply data and technology to build on that legacy.” 

The agency also announced the departure of Sarah Raine, who worked in the role in the last two years. 

“Sarah has made a fantastic contribution to Cummins & Partners and to our clients,” McCallum said.  

“She leaves knowing the agency is in great shape and we wish her every success in the future.” 

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