Former Graham exec joins Sisk to oversee new infrastructure division

John Sisk & Son has appointed Leo Martin as chief operating officer of its newly formed infrastructure division, starting in January 2026.

Martin, who has more than 35 years’ experience in civil engineering, will report to group chief executive Paul Brown.

He will oversee two business units: the existing Sisk Infrastructure arm, led by Alan Rodger, and the recently acquired Farrans business, led by Dominic Lavery.

The new division has been created to provide executive-level oversight of Sisk’s expanding civil engineering operations across the UK and Ireland.

Martin spent more than 26 years at Graham, most recently serving as managing director of the contractor’s civil engineering division until July 2025.

He joined the company in 1999 and held several senior positions, including executive director and contracts director. Projects under his leadership included the £140m DBFO1 Westlink scheme in Belfast and earlier, the Dunleer–Dundalk motorway in Ireland.

He began his career at Cementation (later part of Skanska), working on major schemes such as the A12/M11 junction in east London, wastewater works in Penzance, four bridge projects in Ghana, and the £300m Channel Tunnel Rail Link contract.

Brown said Martin’s appointment came at a time of growing investment in infrastructure across energy, transport, water and flood resilience. He added that the addition of Farrans had significantly strengthened Sisk’s delivery capabilities in the sector.

Source: Sisk announcement