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Expert Profile

David Coyne

David Coyne

Delay Expert

Chartered Engineer (CEng)
Chartered European Engineer, (EUR ENG)
Chartered Marine Engineer (CMarEng)
MSc Construction Law and Dispute Resolution
MSc Geotechnical Engineering
MEng Civil Engineering
President of AFDCI International Chapter
UK Engineering Council
SCL Astra UK
Oil & Gas
Process & Industrial
Asia Pacific
Middle East


  • Forensic Delay Analyst
  • Chartered Engineer
  • Chartered European Engineer
  • Chartered Marine Engineer
  • A specialist in mechanical and electrical quantum matters
  • Extensive experience across the geotechnical and offshore renewables sector


David Coyne is an experienced Chartered Engineer, Project Manager and respected independent Delay Expert with over 10 years’ experience. Mr Coyne specialises in utilising critical path method scheduling as the principal tool in managing complex construction projects/programmes.

He applies his project experience and technical knowledge to support clients as an independent delay expert witness in all dispute resolution forums. He also provides strategic advice to clients from an independent perspective.

David worked as an engineer and project manager on a wide range of projects. As a result, he acquired experience and responsibilities in all stages of the project lifecycle, through design, construction, commissioning, and certification. In addition, he was responsible for driving the efforts of multidisciplinary teams and subcontractors for clients across many regions, including France, the UK, Europe, the Americas, the Middle East, Asia, and Africa.

David also established himself as a leading technical advisor in geotechnical and offshore renewable engineering through his research work with Oxford, Cambridge, and Imperial universities in the UK.

David was recently requested to be part of the international committee drafting the third revision of the French Delay & Disruption Protocol. Furthermore, he became the president of the French Society of Construction Law (AFDCI).

WWL says: 

“David Coyne comes highly regarded by peers and clients alike for his top-tier delay analysis in offshore renewable energy construction projects.”

Peers and clients say: 

“David shows a great understanding of the construction industry and produces excellent written reports”
“He has a quick mind and proposes practical solutions”
“He is definitely one to watch in the field of delay analysis”

David is recognised by Who’s Who Legal as a Global Leader in Arbitration Expert Witnesses 2023, and in Consulting Experts – Construction – Quantum Delay & Technical 2023. He is also recognised as a National Leader in France – Arbitration Expert Witnesses 2023.