Construction Expert

Witness Services

DAC offers the highest level of construction expert witnesses in the World. A team of individuals that can tackle any Technical, Delay, and Quantum matter for medium-sized or large/complex construction disputes worldwide, including the Oil & Gas, Energy, Renewables, and Infrastructure industries.

Construction Expert Witness Services

DAC offers the highest level of construction expert witnesses in the World. A team of individuals that can tackle any Technical, Delay, and Quantum matter for medium-sized or large/complex construction disputes worldwide, including the Oil & Gas, Energy, Renewables, and Infrastructure industries.

DAC continues to train our multiple experts in providing our clients with the best analysis and advice when they most need it, and support Courts and Tribunals with the most reliable independent opinion when complexity drives the case.


Project management is within our core skills, and our range of expertise allows us to provide the best possible advice from critical investments through the different stages of a project, including the support needed to avoid major disputes, and when involved in disputes, in providing the best expertise required that many of the largest constructions companies in the World have and continue to use.


  • Technical: DAC counts with dozens of technical/discipline experts situated in key locations in every continent.
  • Delay: DAC is increasingly involved in some of the largest and most interesting forensic delay and disruption analyses for construction disputes around the World.
  • Quantum: DAC continues to grow its quantum expertise and alliances worldwide to better support our clients in this very important construction litigation expert requirement.


Being part and contributing to organisations such as Who’s Who Legal, the Expert Witness Institute, and the Academy of Experts, and sponsoring events for organisations such as the ICC  help us to keep our Experts up to date with best practices.

Our key competitive advantage is that we were built on technical expertise, so our Delay and Quantum experts get full in-house technical support in construction projects to help drive their very important analysis into reasonable paths that our Clients (and Courts/Tribunals) can understand. For this reason, many clients instruct us to do all three: TechnicalDelay, and Quantum, which not many (or any) other company can do. 

Our management have been CEOs of the largest construction companies in the world, have been project managers and discipline leaders for the largest EPC contractors, and have managed the most important consulting companies in the world.

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