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Brian Vaca


Washington, D.C.

Image of Brian Vaca
Brian Vaca


Washington, D.C.

Brian's practice focuses on advising foreign sovereigns and corporate clients in investment and commercial disputes. Brian's experience includes investment arbitrations before the International Centre for Settlement of Investment Disputes (ICSID) and under the UNCITRAL Rules, as well as in commercial arbitrations before the International Chamber of Commerce (ICC).

These cases have spanned various substantive areas, including energy, mining, infrastructure, sovereign debt, telecommunications, banking, and trademark disputes, among others.

A native of the United States and Ecuador, Brian is fluent in English and Spanish. Brian has been recognized as a “Future Leader” in arbitration for 2022 in the peer ranked Who’s Who Legal, and has made the “Ones to Watch” list by Best Lawyers in 2021 and 2022.

Brian also has experience in domestic litigation and maintains an active pro bono practice.


Washington, D.C.

1101 New York Avenue, NW
Washington, D.C.

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Admitted: District of Columbia Bar, 2018

Admitted: Florida Bar, 2017



LL.M., International Arbitration, University of Miami School of Law, 2016 

JD, Law, University of Miami School of Law, 2016 

BA, Political Science and Psychology, Florida International University, 2013

Pro bono:

  • Advising the Washington Lawyers' Committee for Civil Rights and Urban Affairs and the American Civil Liberties Union of D.C. in a dispute relating to the COVID-19 pandemic and a water crisis, concerning unhygienic conditions and inadequate health protocols at a public psychiatric hospital.
  • Representing an undocumented Ecuadorian national in the United States in a petition for U Nonimmigrant status.

Awards & accolades

Ones to Watch in Commercial Litigation

Best Lawyers, 2021-2023

"Future Leader" in Arbitration

Who's Who Legal, 2022