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Thought Leaders

Thought Leaders

Thought Leader

Thought Leaders - Construction Experts 2020
WWL Ranking: Thought Leader

Global Leader

WWL Ranking: Global Elite Thought Leader
WWL Ranking: Recommended

WWL says

John Mullen earns plaudits as “a standout quantum expert with international experience” in large-scale construction disputes.


John Mullen is a chartered quantity surveyor and civil engineering surveyor with over 40 years' experience across buildings, infrastructure, civil engineering, energy, oil and gas and process projects. 

He was one of the founders of Driver Group and is now a main board member.

As one of the world’s leading quantum experts, he has had over 70 expert witness appointments in many different jurisdictions across the world, including, Africa, the Americas, Europe, the Middle East and the United Kingdom. Matters appointed on have ranged in value up to US$2.75 billion in dispute.

John has been cross-examined on many occasions, several times in the hot tub. He has been cross-examined by specialist construction senior counsel, including some of the UK’s top specialist Queen’s Counsel.  Evidence has been given to tribunals including some of construction’s most eminent judges and arbitrators.

John is co-author of the books Evaluating Contract Claims and The Expert Witness in Construction.

He is recommended in WWL Thought Leaders (2018 and 2019) and WWL Global Elite Thought Leaders (2019 and 2020).

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