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Advisory and expert witness support services to the global construction and engineering industry.

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Established in 1978, we have supported our clients for over 45 years'. We offer complete solutions throughout the project lifecycle, providing services in dispute avoidance and resolution, and supporting the legal profession in Arbitration, Litigation, and Alternative Dispute Resolution.

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Expert services

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Advisory Services

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Diales experts have a minimum of 15 years' practical industry experience, which ensures their integrity as subject experts. Our team deliver robust and thorough reports, and offer proven cross-examination experience.

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Worldwide expertise, delivered locally

Our people are based across five continents, and we work together as an international business to form the teams most suited to our clients' needs. We harness the worldwide expertise of our people, to deliver local solutions. You can browse our interactive map and click on your region, to find your nearest point of contact. We will be happy to discuss your project requirements.

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