Momentum Group is entering 2025 with a leadership expansion, welcoming Zac Stephenson as Managing Director and Kate McDowell as Group Business Director.
Stephenson brings over 25 years of experience leading top agencies such as OMD, Ikon, and MediaCom/EssenceMediacom. Known for his ability to unlock growth, build high-performing teams, and redefine what’s possible for independent agencies, his appointment signals a new era for Momentum Group.
“I’ve long admired the rise (and rise) of NZ’s independent agencies, and the time has never been better to join this vibrant and flourishing community,” says Stephenson. “To do so with someone as smart, dynamic, and fundamentally human as Natalia is a true privilege. I greatly look forward to helping Momentum deliver to its incredible growth potential.”
McDowell has a track record spanning YoungShand, Publicis Groupe, and GroupM. She is a results-driven strategist renowned for turning insights into growth. She will lead Momentum’s client service team, ensuring brands receive the highest level of strategic guidance, execution, and measurable success.
“In an industry where true leadership is rare, Kate stands out,” says Natalia Taylor, Founder & CEO of Momentum Group. “She doesn’t just lead teams—she transforms and nurtures them. Her strategic mindset and ability to drive business impact make her a perfect fit for our ambitions in 2025 and beyond.”
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