Mackey joins Contollo following nearly three decades in senior commercial leadership roles across the UK and Australia, bringing deep expertise in cost planning, procurement reform, benchmarking, Modern Methods of Construction (MMC) strategy, digital transformation and commercial leadership.

His advisory work spans major programmes and developments across healthcare, aviation, commercial offices, sport, education, retail banking and infrastructure in both the UK and Australia.

Most recently, Mackey spent nine years with Arcadis in Australia, where he established and led the Australian Cost Management business, growing it from a single consultant to a national team of more than 25 specialists.

A Chartered Quantity Surveyor and Fellow of the Royal Institution of Chartered Surveyors (FRICS), and author of the widely followed Unengineered newsletter, he is recognised for industry leadership, contributing to market research publications, media commentary and professional network development initiatives that have shaped commercial thinking across the sector.

Matthew joins Contollo as a director, helping clients navigate an increasingly complex construction market through commercial leadership, market intelligence, procurement strategy and cost advisory services.

He will play a key role in strengthening Contollo’s market presence, developing client relationships, growing strategic partnerships and supporting the continued expansion of the business. This aligns with his long standing focus on building high‑performing teams, trusted client relationships and commercially successful businesses.

Mackey said: “Moving from a global corporate giant to a company such as Contollo is a great opportunity. The market is calling for agility, commercial realism, accountability and direct access to experienced leadership. That’s exactly why I joined Contollo.

“We have the capability to go toe to toe with the major global players, combined with the speed, flexibility and entrepreneurial drive that large corporates struggle to maintain. My focus is clear: unite our specialist teams into one high‑performing platform, accelerate national growth, and make Contollo a household name in construction consultancy.”

Mackey is known for his direct, commercially grounded approach to cost and value management. His work centres on dismantling inefficiencies, reforming procurement, scaling MMC and embedding genuine digital transformation to deliver absolute cost certainty across complex, high‑value assets.

Contollo Group CEO Ruth Percival said: “Matthew is one of the most progressive commercial leaders in the industry. His appointment reflects our ambition to build a consultancy platform that combines specialist expertise with modern, value‑driven delivery. He brings the strategic clarity, industry influence and commercial leadership needed to accelerate our growth and challenge the status quo.”