Who's Who Legal
Who's Who Legal
New to Who's Who Legal?
New to Who's Who Legal?
User Menu
New to Who's Who Legal?

Global Leader

WWL Ranking: Recommended

WWL says

Ian Osbaldeston is “very thorough in his work on quantum issues”, delivering "clear and comprehensive work”. He has “deep experience and is good under cross-examination”.


Ian is a chartered quantity surveyor with over 23 years’ experience in main contracting, consultancy, and acting as an independent quantum expert witness. Ian has delivered contentious, non-contentious and commercial management services across the world, most recently in Europe, MENA, Asia and the Commonwealth of Independent States. 

A member of the Academy of Experts who is regularly appointed as an independent expert witness in quantum, Ian has given oral evidence in arbitration on 10 separate occasions under UNCITRAL, ICC, DIAC, LCIA, LMAA and ICSID rules.  

Ian provides opinion on the valuation of disputed variations, defective work, extension of time and terminated works as well as the financial impact of late payment. He has also previously valued the loss of potential profits as well as the financial impact of non-project related overheads.

Ian has working knowledge of most major forms of contract including FIDIC EPC, NEC, IChemE, ICE and JCT. His sector experience includes infrastructure, power, process, rail, oil and gas, nuclear, water, marine, aviation, luxury commercial and residential properties, and IT special airport systems.

Law Business Research
Law Business Research Ltd
Meridian House, 34-35 Farringdon Street
London EC4A 4HL, UK
© Law Business Research Ltd 1998-2020. All rights reserved.
Company No.: 03281866