Revenue jumped 38% to £1.22bn in the year to April 2026 while adjusted operating profit also climbed 38% to £136m as margin hit 12.6%.

Growth was not just acquisition driven. Excluding businesses bought during the last two years, organic revenue increased 25% as OCU benefited from rising investment across power, utilities and digital infrastructure.

The group ended the year with around £140m cash, up from £77m, while its order book of contracted work and framework opportunities passed £4bn.

Chief executive officer Michael Hughes said: “Surpassing £1bn in annual revenue for the first time is a significant achievement for OCU Group.

“It reflects the strength of our people, the trust of our clients, and the effectiveness of a strategy built on operational excellence, disciplined growth, and long-term infrastructure investment.”

OCU said demand remained strong as electricity networks are upgraded to support renewable generation, new connections and rising power demand from data centres.

The group also strengthened its power engineering capability with a new in-house design operation in the UK and India.

Four acquisitions were completed during the year as OCU expanded both its technical capabilities and international reach.

All Energy Contracting was acquired in July 2025, followed by UK heat networks specialist Valmech in November and Australian businesses Pilecom and Bam Bam in December.

The deals have given OCU a platform for further expansion in Australia and New Zealand across renewable energy, power infrastructure, foundations and piling.

Since the year-end, it has also bought Athena Professional Technical Services in the UK and Australia-based Volta Energy Group, adding further engineering, advisory, project delivery and high-voltage commissioning capability.

The group ended the year with net debt up 10% at £636m following acquisition activity.

After £80m of finance costs, the private equity-owned group reported pre-tax losses of £20m improved from £64m in the prior year.