Osborne Partners Rises to 14th in Global Arbitration Review 100 Expert Witness Power Index 2025

Firm records highest average claim value across the index

Osborne Partners is proud to announce that it has climbed seven places in the Global Arbitration Review (GAR) 100 Expert Witness Power Index, securing 14th position worldwide in the 2025 rankings.

The firm also holds the highest average value of claims of any firm featured in the index, underscoring the confidence clients place in Osborne Partners to advise on the most complex and high-value arbitration matters globally.

The significant rise in the rankings reflects Osborne Partners’ continued strength in delivering rigorous, independent expert testimony across major international disputes, as well as the depth of experience and technical excellence of its expert team.

“This achievement is a testament to the trust our clients place in us and to the exceptional work of our experts across jurisdictions,”

said Chris Osborne, Managing Director at Osborne Partners.

“We are proud to be recognised among the world’s leading expert witness firms.”

Osborne Partners congratulates its entire team on this outstanding recognition and thanks its clients for their continued partnership.

https://globalarbitrationreview.com/survey/gar-100/2025/article/expert-witnesses-2025

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