About Us

PBX, an international law firm

PBX is a boutique firm exclusively dedicated to international law, focusing on Investor-State arbitration, commercial arbitration, and complex international disputes.

The experience of our lawyers in international litigation is exceptional. They have participated in some of the most prominent Investor-State cases in history, representing states, public entities, and private companies, with combined disputed sums exceeding 40 billion dollars.

PBX, a firm of experienced lawyers

In addition to participating in landmark cases, our lawyers boast an unparalleled success rate, having secured victories in more than a dozen international cases in recent years.

The extensive experience of our lawyers in this type of litigation has also allowed them to contribute to international precedents that shape the history of international law.

For instance, our lawyers participated in the first dual nationality case won by a state, laying the foundation for a line of successful precedents in that area. Additionally, our lawyers have significantly influenced the development of new arbitration trends, for example, obtaining—for the second time in the history of Investor-State arbitration—a Security for Costs measure in favor of the party they represented.

PBX, Case-by-Case Strategies

At PBX, we are committed to protecting our clients’ interests. We approach each case with flexibility to meet their needs, developing tailored strategies on a case-by-case basis. We strive to analyze each dispute individually and create comprehensive strategies that extend from the initial negotiations in amicable settlement phases to the final day of litigation.

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