Lexology Index: Arbitration 2026

Lexology Index has ranked BRG among the world’s top expert witness firms for international arbitration and included thirty BRG professionals in its Arbitration 2026 guide, which profiles experts widely acclaimed for their expertise in resolving complex international disputes. 

Global Elite Thought Leaders 

Daniela Bambaci has “technical expertise and great presentation skills”, “explains complex topics in a way that everyone can understand” and is “very good at testifying”. 

Richard Boulton is very knowledgeable and hugely experienced”, has “a unique perspective being a barrister and a forensic accountant” and is an “excellent testifier”. 

Mustafa Hadi comes “highly recommended for complex cases”, and “his arguments are based on simple examples which can be understood very easily”. 

Laura Hardin is “creative, hardworking and a pleasure to work with”. She is “excellent on the stand and pushes to make sure she’s comfortable with the position she takes”. She has an “amazing ability to make difficult topics easy to understand”. 

Michael Kenyon has “solid technical expertise and a practical approach”. He “demonstrates a strong grasp of the issues and holds his own effectively under cross-examination”. 

Pablo Spiller “brings decades of expertise and experience with an ability to make complex points clean for the lay-arbitrator”. He “stands firm on cross-examination” and “always knows the key details of the case”. 

Thought Leaders 

Manuel A. Abdala earns “widespread praise for his vast experience” providing expert testimony in major arbitration proceedings. 

Aidan Coyne “prepares excellent reports and performs well in the witness box”. He is described as “the best delay expert in the Middle East”. 

Anastasia “Nastya” Malyugina “has it all: knowledge, credibility, preparation and integrity”. She is “well-known for her expertise and professionalism” and is “phenomenal on the stand”. 

Sharon McGahey “hits important points and convinces the tribunal in a very streamlined way”. Her “testimony and presentation skills at hearings are very impressive”, and she’s “quick on her feet and always on point”. 

Daniel Ryan is an “extremely strong expert witness” who is “everything you could wish for in an independent expert” and a “go-to in cases where there’s a conflict”. 

Michael Seelhof is “great with clients”, “very analytical and methodical” and “quick to understand the relevant issues and come up with creative solutions”. 

Nikola Stambolić is “incredibly diligent, hardworking, and attuned to legal cases”. He is a “strong strategic thinker able to argue his views well”; and “not only does he have specialised knowledge, but also excellent communication skills”. 

Highly Recommended

Andres Alva is “highly analytical” and can “prepare and submit a complete and trustworthy delay report in a very short period of time despite limited information available”. He is “great for construction arbitration”. 

Jas Cheema is “a great person to work with” and a “very sensible and assured expert”. He “ensures a smooth experience for his clients” and is “a very good quantum expert”. 

John W. Dillon “combines excellent analytical skills with a great deal of practice experience” and is “always professional with creative ideas”. He “has the ability to analyse in-depth complex delay and disruption issues and break them down in simple terms for the benefit of tribunals and counsel”.  

Sean Fishlock and his team are “tenacious yet commercial”. He “possesses a great sense for relevant details without compromising their integrity” and is a “good expert witness and a pleasure to work with”. 

Christopher Goncalves is “very well prepared, and his team worked hand in hand with ours to ensure they got the details right”. He is “compelling under cross-examination” and an “excellent testifier”. 

Greg Harman “produces excellent expert reports” and is “great for competition damages work”.  

Pascale Leymin combines “technical precision with clear communication” and is a “trusted figure in high-value arbitration and litigation matters”. She “possesses incredible attention to detail and uses a practical problem-solving approach”. 

Calvin Qiu is “user-friendly and has a practical approach”. He is “responsive and provides clear communication” and is “innovative in his analysis”. 

David Rogers is a “very good and technical expert” who is “very responsive, friendly and easy to deal with” and “structures his arguments in a clear and incisive way”. 

Brad Wolf is a “fantastic expert witness” who has a “quick grasp of the contractual and commercial framework” and “deep industry experience”. 

Recommended

Stephen Dickie is “very level-headed and practical” and “a diligent and hardworking expert” who “pays close attention to the detail of the case and brings valuable expertise”.

John Fletcher “enjoys a great reputation in the region for his longevity” and possesses “industry knowledge coupled with a very sharp intellect”. He is “dedicated and hardworking” and a “leading delay expert in the Middle East”. 

Crosby MacDonald has the ability to “explain in simple layman’s terms the quantum methodology and issues”. He “gives very clear and concise presentations and is very well prepared” and provides “thorough and well-written expert reports”.  

David Teece is “a leader in his field”. He is “impressive, professional and effective” and “well-reputed in the market”. 

Future Leaders

Athanasia Arapogianni Konisti is “a true expert on the renewable energy sector” who is “great to collaborate with”. She is a “very thorough and very kind expert”. 

Andrés Barrera “combines technical precision with a strong understanding of the arbitral process, tailoring his analysis to resonate with the tribunal”. He is “thorough, practical and great at navigating complex issues” and a “strategic thinker” who “presents with great clarity”.

Nancy Cherashore is “thoughtful, measured, insightful and a real asset to any team”. “Her focus on establishing a sound and persuasive foundation for the assessment of damages sets her apart”, and “she consistently takes a strategic view and is always attentive to the broader context”.