Big Group, the employee-owned collective of independent creative marketing agencies with offices in London, Amsterdam, Bath, and Dubai, has appointed Martin Kelly as Group CEO and Justin Bulley as Managing Director of its London office, effective 1 July 2025.
The appointments come as the agency sharpens its leadership to meet bold new goals, while staying true to its founding values. A shared belief unites Big Group: brands grow when imagination, intelligence and innovation work together.
Justin Bulley will lead London’s day-to-day operations as Managing Director, implementing a bold new vision for the organisation. Martin Kelly, as Group CEO, will be responsible for driving efficiencies and collaboration across the group’s three-country footprint.
“Their clarity, energy and deep understanding of Big Group clients and culture make them the perfect choice,” says Founder and Executive Chairman Nick Scott.
“I’m thrilled to be taking on the role of Managing Director at Big Group, a company I’ve been fortunate to help shape,” said new MD Justin Bulley. “Working alongside our Group CEO Martin Kelly and with the support of our senior leadership team, we will continue to grow and innovate with our clients and partners.”
“I’m excited to step into the role of Group CEO at Big Group,” said Martin Kelly. “Over the past 10+ years, I’ve seen this agency grow in scale, purpose and spirit and I’m honoured to continue building on that foundation. We are independent by nature and unstoppable together.”
From its origins in 1991 as an ambitious start-up to today’s 170-strong team across four offices, Big Group has grown over more than 30 years while staying true to its independent spirit, collaborative culture and focus on delivering excellence. In 2024, the agency was named one of the UK’s Top 10 ‘Best Marketing & Media Agencies to Work For’.