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Thought Leaders

Thought Leaders

Thought Leader

WWL Ranking: Global Elite Thought Leader
Thought Leaders - Construction Experts 2020
WWL Ranking: Thought Leader

Global Leader

WWL Ranking: Recommended

Peers and clients say

"David is an authority on delay"
"A leading name without a doubt"
"He is an excellent delay expert with huge experience"
"He has a keen mind, extensive  experience, and is a thoughtful expert who provides high-quality and thorough reports"
"He is calm, engaging and thoughtful under cross-examination"


David Barry, Chairman and founder of Blackrock Expert Services Group, is one of the world’s pre-eminent construction experts, and he was named Who’s Who Legal’s Construction Expert of the year in both 2020 and 2018. He is very highly regarded as both a construction management and delay expert, and is renowned for his independence and integrity.

David has over 30 years of programme, project and construction management experience, spanning a wide range of industries that include major civil, commercial, environmental, industrial, institutional, process and energy works. As a project manager David specialises in using critical path method scheduling as the principal tool in   managing complex construction projects and programmes. As an expert he has  considered and reported upon issues such as project and construction management performance, as well as acceleration, concurrency, delay, disruption, float ownership, mitigation responsibility, resource usage and other planning issues. David has extensive testifying experience.

His experience is wide ranging and includes airports, stadia, highways, bridges, tunnels, light and heavy rail transportation systems, hospitals, commercial buildings, power generating facilities, manufacturing and process plants, oil and gas facilities, and shipbuilding.

David also acts as a dispute advisory board member, arbitrator and mediator. He has had a number of appointments as court/tribunal-appointed expert.

David founded the company in 2009, originally as Blackrock Programme Management, now Blackrock Expert Services Group.

WWL Ranking: Global Elite Thought Leader
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