Alistair Borthwick is joining Scotland-based quarrying business Hillhouse Group as its new chief executive officer.
In further news from the family-run group Robert McNaughton will be stepping down as managing director of Hillhouse Quarry Group in April 2026, after 18 years in the role. Hillhouse says that, for almost two decades, McNaughton has guided the business through significant growth, transformation, and milestones, leaving a lasting legacy for colleagues and its long-standing customers.
Under McNaughton’s leadership, Hillhouse has grown from an Ayrshire-based business into one of the largest privately-owned companies in Scotland. He has overseen major strategic and operational change and, in his final year, the business achieved a place in the top 100 private companies in Scotland.
As part of Hillhouse’s planned leadership changes it has announced that Mark Munro will take over as managing director of Hillhouse Quarry Group. He has over 25 years of experience within the organisation and a deep understanding of its people, operations, and values.
Hillhouse Group said in a statement: “We wish Robert a well-deserved, relaxing retirement and thank him for his leadership and contribution to Hillhouse Quarry Group over his 18-year tenure.”
