Astigarraga is widely recognized as one of the foremost authorities in international arbitration and business disputes. He is one of only six lawyers worldwide ranked by Chambers in the top band of international arbitration practitioners for Latin America, and one of only 10 lawyers ranked in the top band in the United States. Astigarraga has held prominent roles, including serving on the ICC’s Arbitration Commission, co-chairing its Task Force on the Accuracy of Witness Memory, and serving as vice president of the LCIA during his decade-long tenure on the Court. He also led the IBA’s Task Force on Guidelines for Arbitrator Conflicts of Interest and has advised the NAFTA Commission on international arbitration and dispute resolution.

Rivero leads Reed Smith’s Latin America Business Team and is a former co-leader of the firm’s International Arbitration Group. Based in Houston and New York, Rivero advises clients on complex commercial, commodities, construction and energy matters, including battery storage, biomass, solar, storage and wind projects. Fluent in both English and Spanish, he represents clients in a wide range of international and regional arbitration proceedings and provides counsel on investment treaty arbitration and cross-border matters. Rivero is also a frequent lecturer and writer, and co-author of the Guide to Arbitration in Latin America’s chapter on International Commercial Arbitration in Mexico. He serves as an adjunct professor at the University of Houston Law Center.

Now in its 13th year, the Latinvex Top 100 Lawyers list highlights the leading attorneys from international law firms involved in Latin America’s legal business.