Redefining leadership for an evolving agency

By big group
07 Aug 2025

Martin Kelly and Justin BulleyFrom left to right: Martin Kelly, Group CEO and Justin Bulley, Managing Director, London

We’re turning the page on an exciting new chapter at Big Group. As we continue to grow as an employee-owned collective of independent creative agencies, we’re thrilled to announce the appointment of Martin Kelly as Group CEO and Justin Bulley as Managing Director of our London office.

These appointments reflect more than a leadership transition. They signal our commitment to shaping a bold, intelligent, and imaginative future for our people, partners and clients.

Charting the next chapter at Big Group
From our origins in 1991 as an ambitious start-up to today’s 170-strong team working across London, Amsterdam, Bath and Dubai, we’ve built our reputation by blending strategic insight with breakthrough creativity. As we evolve, we’re honing our vision and leadership to drive momentum across all our markets while staying true to our independent spirit.

Martin Kelly, who has helped steer Big Group’s international growth since joining in 2016, now steps into the Group CEO role. He’ll focus on driving collaboration and operational excellence across our global footprint. “Over the past 10+ years, I’ve seen this agency grow in scale, purpose and spirit,” says Martin. “I’m honoured to continue building on that foundation. We are independent by nature and unstoppable together.”

Justin Bulley, a long-standing member of the Group Board, steps into the role of Managing Director for the London office. He’ll lead our largest team through the next stage of its evolution. “Working alongside Martin and our senior leadership team, we will continue to grow and innovate with our clients and partners,” says Justin. “It’s a huge privilege to take on this role in a company I’ve helped shape.”

Powered by people, creativity and culture
Founder and Executive Chairman Nick Scott sums it up best: “Their clarity, energy and deep understanding of Big Group clients and culture make them the perfect choice.”

Our people-first culture remains the heart of who we are. As one of the UK’s Top 10 ‘Best Marketing & Media Agencies to Work For’, we believe brands grow when imagination, intelligence and innovation work together. The same is true for the people behind them.

Here’s to the next chapter!

Leadership

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