Sidley Austin LLP is recognized for handling complex, multi-jurisdictional disputes for global corporates and sovereigns, covering the full life cycle from trial through Supreme Court appeals. The group spearheaded in Washington DC by Gregory Williams, an expert in high-stakes international litigation involving foreign sovereigns and state-owned entities, excelling in foreign sovereign immunity, enforcement-related disputes, and multi-fora proceedings. Alongside co-head, Mark Guerrera who leverages strong experience in high-stakes cross-border commercial litigation, notably across complex financial disputes and international fraud-related matters, routinely leading multi-jurisdictional proceedings involving parallel actions across Europe, the UK, offshore centres and North America. Dallas-based Yvette Ostolaza and Washington, DC’s Carter Phillips and Gordon Todd are key members of the group.
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Key clients
- Novo Nordisk
- Antrix
- Kingdom of Spain
- Glocal
- Ninestar
- Huawei Technologies
- BAE
- Triumph
- LONGi
- Figma
- Motiff
- Canadian Solar
Work highlights
Advising Indian state-owned entity in U.S. Supreme Court and Ninth Circuit proceedings related to over $1.3 billion arbitration award.
Representing Ninestar Corporation in a landmark Administrative Procedure Act challenge to its designation on the U.S. forced-labor entity list, alleging the government acted unlawfully by imposing an import ban without providing any explanation or evidentiary basis.
Representing Huawei in bet-the-company criminal case, in which Huawei was charged with conspiracies to steal trade secrets, to commit Iranian sanctions violations, to defraud banks into providing services that violated Iranian sanctions, to engage in money laundering, and to invest the proceeds of these activities in violation of RICO.
Practice head
Gregory M. Williams; Mark P. Guerrera
Other key lawyers
Yvette Ostolaza; Carter Phillips; Gordon Todd