LAWYER PROFILE
Marcio Vasconcellos

Marcio Vasconcellos

Global 2026

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Ranked in 1 practice area

Contributions and articles

1 Global Practice Guides

About

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Practice Areas

Marcio Vasconcellos is a senior associate in the firm’s New York office and a member of the International Arbitration Practice Group. Marcio focuses on commercial and investor-state arbitration.

Marcio represents clients in commercial and investor-state arbitration. He has a particular focus on disputes following mergers and acquisitions, mining, energy, and financial sectors, as well as broad experience in matters involving Latin America and Brazil. Marcio has represented clients under most institutional rules and across a broad spectrum of industries, including oil and gas, electric power, mining, transportation, real estate development, manufacturing, and pharmaceuticals.

Mr. Vasconcellos was formerly an Adjunct Professor of Law at Pepperdine University School of Law, where he taught International Commercial Arbitration – Theory & Doctrine. He was also a Lecturer in Law at USC-Gould – University of Southern California School of Law, where he taught advanced oral advocacy. Marcio was also the Chair for the Los Angeles Chapter of the Chartered Institute of Arbitrators – North America Branch.

Chambers Review

Provided by Chambers

Chambers Global Guide

International Arbitration - Brazil

Associate to watch
Associates to watch

Individual Editorial

Marcio Vasconcellos is an active associate-to-watch acting in Brazil and New York. Vasconcellos is experienced in assisting clients with big-ticket M&A arbitration disputes and commercial claims.

Strengths

Provided by Chambers

  • Marcio Vasconcellos is a very competent young lawyer. He is highly spoken of in the international arbitration market.

    International ArbitrationChambers Global Guide
  • For me, Marcio is a star associate. He is fantastic, confident and communicates his ideas logically.

    International ArbitrationChambers Global Guide
  • Marcio is a great associate who is a hard worker. He is really smart, business-oriented and has been doing Brazil work non-stop.

    International ArbitrationChambers Global Guide

Ranked Individuals at King & Spalding LLP (125)

Algeria

Australia

Brazil

Canada

China

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    Michael E Arruda

    Energy & Natural Resources (International Firms)

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Egypt

Europe-wide

France

Germany

Global Market Leaders

All Contributions (1)

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