Mace Construct announces leadership and board changes as business enters next phase of growth
Mace Construct has today announced a series of planned leadership and board changes that form part of the company’s long-term strategy to build a more resilient, focused and future-ready construction business.
The latest updates follow the successful carve‑out of Mace Consult earlier this year, establishing Mace Construct as a standalone company with a clear ambition to grow sustainably.
Changes to the Group Board
Following the completion of the Mace Group demerger and divestment of Mace Consult, two non-executive directors, Nina Bjornstad and John Holland Kaye, have made the decision to step down from the Mace Group Board to focus on other non-executive commitments. John was appointed as Chair of Sizewell C in February 2025 and Chair of Cadent Gas in February 2026. Nina was appointed to the Etraveli Group Board in January 2026 and has a number of other active board roles.
Nina was one of the original members of Mace’s Advisory Board, which was established in 2023 and transitioned into the Group Board in January 2025. She also served as Chair of Mace’s People & Renumeration Committee. John joined Mace’s Group Board when it was established and sat on the Safety & Responsible Business and People & Renumeration Committees. Sylvia Metayer will replace Nina as Chair of the Group’s People and Renumeration Committee.
The Group’s intent is to continue to align with the UK Corporate Governance Code, and it will be carrying out a review in the coming months of the governance needs of the business.
Mark Reynolds CBE, Executive Chairman of Mace Group, said:
“Nina and John have made a hugely valuable contribution during a pivotal period for Mace Group. Their leadership, insight and expertise have strengthened our Board and helped guide the organisation through one of the most significant transitions in our history.
“On behalf of the Group Board, I would like to thank them both for their service and support and I wish them every success in the future.”
Changes to the leadership of Mace Construct
At the end of last year, Mace Construct confirmed a simplification of its operating model from five business units to three - Commercial; Public Sector, Science and Technology; and Infrastructure. A cross-cutting building services offer supports all three business units to strengthen delivery capability and sharpen market focus. The business also signalled that further phased changes would follow in 2026 to support long-term resilience and performance.
As part of this planned evolution, Paul Connolly, currently Head of Construction Technical Services, will take up the role of Director of Technology. Reporting to Rob Lemming, who leads the Public, Science and Technology business unit, Paul will oversee Mace Construct’s data centres division. His appointment reflects the company’s commitment to a technology-driven, engineering-led approach to project delivery in one of the sector’s fastest growing markets.
Paul’s leadership and data centre expertise will strengthen the business’ offer in this dynamic sector, ensuring it is positioned to meet increasing client demand for high performing, resilient and sustainable digital infrastructure.
Alister Grey, Managing Director of Technology, has recently taken the decision to pursue opportunities outside the business and will be standing down in the summer. He has worked for Mace since 2016 and was integral to the delivery of Battersea Power Station and multiple hyper-scale data centres across Europe.
To further align specialist capability with client need, Mace Construct’s Interiors business will be overseen by Gavin Seager, Managing Director of Specialist Services, and will deliver pure Category A and B work. The Interiors team will focus on delivering an agile, high-quality commercial fitout offer in London - strengthening integration across business units and enhancing the company’s ability to respond to market conditions with speed and precision.
Jason Millett, CEO of Mace Group, said:
“These changes reflect the next step in our long‑term plan to build a more resilient, focused and future‑ready Mace Construct. As a standalone company, we have taken the time to reset and refocus parts of our business and are sharpening our strategic direction, strengthening our leadership through internal promotions, and ensuring we continue to deliver exceptional outcomes for our clients.
“Alister has played a pivotal role in shaping and operating Mace Construct’s data centres offer, I and the wider leadership team would like to thank him for his significant contribution and commitment. We wish him every success in his future endeavours.”
Since establishing its three‑business‑unit operating model, Mace Construct has secured a strong pipeline of work and is progressing a refined route‑to‑market strategy across its target sectors. More than 75% of current work is with repeat clients, demonstrating the strength of long‑term relationships and the trust placed in the business’s delivery capability.