Ariel N. Medvedeff

Executive Vice President


Ariel N. Medvedeff, CFA is an Executive Vice President at Compass Lexecon, based in Miami. With over 15 years of expertise, he specializes in financial, economic, regulatory and public policy analyses, with a focus on international treaty and commercial arbitrations. Mr. Medvedeff is also the Co-Head of the Construction Arbitration Practice. 

Throughout his career, Mr. Medvedeff has participated in over 60 litigations and arbitration disputes, offering expert testimony and contributing to expert reports across multiple institutions, including ICSID, UNCITRAL, ICC, LCIA, and PCA. He has been recognized amongst the Global Elite Thought Leaders Expert Witnesses in Arbitration by Global Arbitration Review’s publication Who’s Who Legal in 2023 and 2024, who describes him as “an ‘incredibly sharp and convincing’ expert” and “whom ‘arbitrators really like’”.

Mr. Medvedeff's experience spans various industries, including energy, hospitality, real estate, construction, agriculture, mining, transport, telecommunications, and airlines. These engagements involved projects located in Latin America (Argentina, Bolivia, Chile, Colombia, Dominican Republic, Ecuador, Guatemala, Peru, Uruguay and Venezuela), North America (Canada and Mexico) and EMEA (Bahrain, Egypt, Hungary, Kenya, Senegal and Spain).

Mr. Medvedeff’s academic activities include teaching classes on regulatory and financial analysis and on damages assessment in litigation and arbitration disputes in various universities.

Mr. Medvedeff holds a B.A. in economics from Universidad Torcuato Di Tella (Argentina) and holds the internationally recognized Chartered Financial Analyst® designation, granted by the CFA Institute.

  1. Education icon


    • BA in Economics, Universidad Torcuato Di Tella
    • CFA® Charterholder

A new version of Compass Lexecon is available.