Compass Lexecon Ranks #1 on Investor-State Arbitration Cases in GAR 100 Expert Witness Firms’ Power Index 2025

We are proud to announce that Compass Lexecon has been recognized as one of the top five expert witness firms by Global Arbitration Review (GAR) in the GAR 100 Expert Witness Firms’ Power Index for the eighth consecutive year. The results of the GAR Power Index were revealed at the GAR Awards Ceremony in Paris on April 10, 2025.

Compass Lexecon takes first position in the Power Index when ranked by number of investor-state arbitration hearings (46 hearings), as it continues to work on some of the biggest ground-breaking cases. GAR considers the number of Compass Lexecon experts recognized as Lexology Index’ Arbitration Expert Witnesses as ‘mighty impressive’.

GAR also highlights that Compass Lexecon shines when it comes to the average value of claims, which increased from US$337.5 million in last year’s index to US$450.8 million this year. In addition, the 76% increase in total claims value of Compass Lexecon’s arbitration cases (from US$13.8 billion to US$24.3 billion) is one of the highest this year.

GAR’s Power Index examines information gathered from international arbitration hearings to quantify the activity of expert firms over two years. Using data reported by GAR 100 law firms, the model assesses the average and median size of claims handled by expert firms, and weighs the number of appearances at hearings, the number of experts featured in the Lexology Index Expert Witness list, and those voted as Global Elite Thought Leaders in industry surveys.

Compass Lexecon’s experts recognized as Lexology Index Global Elite Thought Leaders for 2025 include Carla Chavich, Pablo Lopez Zadicoff, Ariel N. Medvedeff, and Miguel Nakhle, in North America, Dr. Boaz Moselle in Europe, and Sebastian Zuccon in Latin America.

Compass Lexecon’s International Arbitration practice leverages extensive experience in all areas of international arbitration, utilizing economists and financial experts to deliver independent economic analysis, valuation opinions, damages assessments, regulatory opinions, expert reports, and arbitration testimony.