Thompson Spencer builds out media team across Australia and New Zealand 

Independent full-funnel agency Thompson Spencer has expanded its media team, with a trio from OMD, MBM and EssenceMediacom joining forces to shape the agency’s trans-Tasman media capability. 

A trio of expertise

Based in Auckland, Jake Calder, formerly of OMD and MBM, joins as media director / media futurist.

With more than a decade of experience leading performance and digital transformation across brands such as Air New Zealand, Spark, The Warehouse Group and the New Zealand Government, Calder will lead the agency’s media innovation and data-driven approach. 

Joining him is Madison Trevella, previously with OMD and most recently Reason’s strategy and client lead, appointed as head of media.

Based in Melbourne, Trevella is focused on building a clear, integrated media offer that connects brand strategy with performance outcomes. 

Also based in Auckland is media planner Libby Frost. Most recently at EssenceMediacom, she brings experience across media strategy, digital planning and integrated campaign delivery in both agency and client environments. 

Building out the team

Thompson Spencer co-CEO Melanie Spencer says the appointments reflect the agency’s continued momentum and commitment to building out a best-in-class media function. 

“We’ve seen phenomenal growth across the business over the past 12 months – from major new business wins to our merger with Reason and continued expansion into the Australian market,” says Spencer.

“Building out our media team is the next step in that journey. Jake, Madison and Libby each bring fresh thinking and proven expertise to help us deliver even greater impact for our clients.” 

An exciting journey

Jake Calder – also chair of the IAB Programmatic Council in 2023 and Emerging Tech Council in 2024 – is a recognised thought leader across automation, AI and digital media innovation.

He’s regularly featured at industry events including Google’s Publisher Academy, Scope3 and the IAB. 

“This is the kind of opportunity you say yes to straight away,” Calder says. “Thompson Spencer has long understood the value of media, and there’s a clear ambition to take it even further. Clients are asking for smart, connected media that actually moves the needle – and that’s exactly what we’re continuing to build. I’m excited to help shape what modern media should look like.” 

The announcement follows Thompson Spencer’s 2025 merger with Reason and its expansion into the Australian market. The growing 12-person media team now spans both countries.

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