The group’s Adjusted EBITDA from continuing operations jumped 49% to £102.2m, compared with £68.5m in the prior year, while cash profit before tax from continuing operations rose to £49.6m from £38.4m. Gross cash held at year end stood at £81.1m, up from £70.2m.

Had the full-year impact of acquisitions completed during the year been included, the company said revenues and Adjusted EBITDA would have reached approximately £877m and £113m respectively.

The group’s pipeline of prospective work now stands at £24 billion across 754 opportunities, with £1.7bn in new contracts secured during the year and a total order book of £4.6bn as of 31 March 2026.

United Infrastructure, which serves owners and operators of UK critical utility and social infrastructure assets, notched up several significant contract wins during the period.

The company was appointed as a key delivery partner by Liverpool Bay CCS Limited, part of global energy group Eni, for the onshore pipeline element of the UK’s first large-scale carbon capture and storage scheme, a contract worth £250m.

Its largest project to date is a partnership with SSEN in the Highlands, supporting grid capability upgrades worth more than £236m, underpinning what the company described as a particularly strong order book in Scotland.

Elsewhere, the group’s water division expanded its client base to include Yorkshire Water, Northumbrian Water Group, Affinity Water, Thames Water, Southern Water and United Utilities, with combined contract values exceeding £171m. Its telecoms arm, Connected, secured a nationwide maintenance deal with Cornerstone spanning 16,000 sites, including Northern Ireland and the Scottish Highlands and Islands, alongside work for Telefonica, Cellnex and Virgin Media worth a combined £391m-plus.

The Social Infrastructure division landed a multi-year contract worth £364m with The Guinness Partnership to renew and maintain 20,000 homes across the Northwest, contributing to a division order book of more than £800m, alongside further wins with Haringey and Havering councils. The group also continues large-scale public sector work in London, the Midlands and the North, including a major regeneration programme in Wolverhampton.

United Infrastructure made four strategic acquisitions during the year as it moved to broaden its capabilities:

• Peter Duffy (May 2025) — a civil engineering specialist in water infrastructure
• Glenelly (June 2025) — a majority stake in a low-voltage power distribution business
• Wood’s Transmission & Distribution business (December 2025) — giving the group a foothold in the high-voltage market
• Simkiss Group (February 2026) — an engineering solutions provider spanning gas, water, power and data centres

In March 2026, the group completed a management buy-out of its New Homes business, following an earlier decision to wind the division down and stop taking on new work in that space. The move reflects a broader strategic pivot toward decarbonisation, energy transition, digitalisation and the wider UK utility and social infrastructure sectors.

Neil Armstrong, CEO of United Infrastructure, said the results marked “a record year of performance,” pointing to a strong cash position and growing order book as evidence of client confidence.

“The long-term drivers across our markets, decarbonisation, resilience, digital connectivity and modernisation of essential infrastructure, continue to accelerate, creating sustained demand for the services we are built to deliver,” Armstrong said, adding that the year’s acquisitions had strengthened the group’s capabilities across power, water, engineering and emerging sectors such as data centres.