IN Brief:
- Sisk’s pre-tax profit increased 27.7% to €74.2m despite lower group turnover.
- Gross margin rose from 6.0% to 7.6%, with the UK identified as a significant growth market.
- The contractor enters 2026 debt-free with €392.3m in cash and investments and a €7.2bn advance order book.
Sisk has reported a 27.7% increase in pre-tax profit for 2025, with stronger margins and growth in its UK construction activities offsetting a fall in group turnover. Sicon Limited, the parent company of John Sisk & Son’s construction and related businesses in Ireland, the UK, and continental Europe, recorded profit before tax of €74.2m compared with €58.1m a year earlier.
Operating profit increased by 37.9% to €67.0m from €48.6m, while gross margin improved from 6.0% to 7.6%. Turnover moved in the opposite direction, falling from €2.752bn to €2.624bn, giving the results a rather more useful construction-sector story than another exercise in celebrating revenue growth for its own sake.
The group finished the year with €338.1m in cash and a further €54.2m held in short-term investments, taking combined cash and investments to €392.3m. Sisk also remained free of bank debt at year end, providing considerable balance-sheet headroom as it moves into a period of higher UK workload and broader infrastructure exposure.
The UK was identified as a significant growth market during 2025, with activity across residential, commercial, infrastructure, and specialist rail work. Current reporting puts UK revenue at more than €1bn, up by about €150m year on year, while turnover declined in Ireland and continental Europe.
Major UK work during the year included the Etihad Stadium expansion in Manchester, Silvertown in London, continuing development at Wembley Park, Moderna’s facility in Oxfordshire, and infrastructure work at York Central. Sisk Rail and Fuse Rail also continued to contribute to the group’s UK activity, extending the contractor’s exposure beyond mainstream building work.
The results arrive after Sisk completed its acquisition of Farrans Limited in October 2025. Farrans continues to operate as a standalone business within the group and adds civil engineering capability across water, energy, transport, aviation, and marine infrastructure in Ireland, Northern Ireland, and Great Britain.
That acquisition broadens Sisk’s workload at a point when regulated infrastructure and major public projects are creating relatively long pipelines compared with some commercial building markets. The work is hardly low risk — water, transport, and energy projects bring substantial technical, assurance, and programme demands — but they can provide a different workload profile from projects dependent on shorter property-development cycles.
The margin movement is consequently more important than the small reduction in turnover. Construction businesses can increase revenue quickly by taking more work, but converting that work into acceptable returns depends on tender discipline, procurement, programme management, and control of change throughout contracts that can run for several years.
A move from 6.0% to 7.6% gross margin suggests the group extracted more value from a slightly smaller revenue base in 2025. Whether that improvement can be maintained as UK activity expands will be one of the more useful measures of performance in the next reporting period.
Contractors carrying major building and infrastructure schemes also need liquidity because expenditure does not follow the same timetable as income. Labour, materials, subcontractors, design, temporary works, and plant can all require funding ahead of corresponding client receipts, while disputes or programme slippage can enlarge the gap considerably.
Sisk’s cash position and lack of bank debt therefore matter operationally rather than merely improving the appearance of the year-end balance sheet. A contractor with greater financial headroom has more capacity to absorb timing differences, invest in new capability, and remain selective when tender markets become more aggressive.
The acquisition of Farrans increases that need for selectivity. Expanding into additional infrastructure sectors can enlarge the opportunity pipeline, but integration, management capacity, specialist labour, and supply-chain oversight still have to keep pace with the order book. Growth that outruns those resources has produced enough expensive lessons elsewhere in construction.
Sisk enters 2026 with an advance order book of €7.2bn and says a significant proportion of planned activity is already secured and under way, with visibility extending into 2027. Target sectors include infrastructure, healthcare, energy, data centres, life sciences, advanced manufacturing, high-rise residential, and other technically complex construction.
That mix gives the group plenty of work to convert into revenue. The more interesting question is how much of it converts into profit. After a year in which turnover fell while operating profit and margin increased, Sisk has set itself a useful benchmark: another few billion euros of workload is valuable only if the discipline behind the 2025 numbers survives the growth that follows.



