While Diales is probably best known for its impressive work on some of the world’s largest and most complex construction and engineering disputes, the company does far more than just dispute resolution.
Having begun a 4-year ‘Transformation Strategy’ in 2023, Diales has already achieved a truly impressive turnaround. At its Half Year Results in June 2026, Diales announced its revenue had increased 10% to £23.7 million, gross profit was up 19% to £6.8 million, and underlying operating profit had increased 49% to £1.0 million. And all of this has been achieved against a challenging geopolitical backdrop.
This performance has come as the business’ strategic expansion remains focused on scaling through organic growth, recruiting key talent and geographical and sectoral expansion. This includes the launch of Diales’ Building Safety and Fire Engineering expertise in October 2025. At the same time, the business is investing in technology, including AI applications, to streamline its client servicing and maximise its operational efficiency. Diales’ wide ranging expertise comes from nearly 50 years of advising across disciplines including quantity surveying, planning and programming, commercial and contract management, project management, structural design, dispute resolution and expert witness services.
Through this broad expertise, Diales’ specialists can be found advising on everything from risk management during large infrastructure projects to the assessment of prolongation claims and the causes of project failure. The specialist Diales Technical team can also be seen at the heart of many flagship projects.
For many years, Diales has provided the structural engineering expertise behind the iconic Goodwood Festival of Speed central sculpture, reflecting the unique partnership between Diales and one of the UK’s most celebrated events in the automotive calendar.
After a strong performance in the first half of its current financial year, the Company expects to deliver its Full Year Results at a minimum in line with market expectations with an appealing client-facing offering, a strong financial position, a scalable model and continued investment across people, technology and services delivering sustained and consistent organic growth.
Diales delivers exceptional professional services support to clients across the construction and engineering sectors. To learn more about the Diales’ work and how it can help your business, visit www.diales.com.
