Trading Places: Paul Weiss launches in Silicon Valley as Simpson Thacher builds out new Chicago office

Kate Peacock · 12 November 2026 · 6 min read

United States Akin Alston & Bird Baker McKenzie Cahill Gordon & Reindel Dechert Foley & Lardner Haynes and Boone Kirkland & Ellis Mayer Brown McGuireWoods Morgan Lewis Orrick Orrick, Herrington & Sutcliffe Paul, Weiss, Rifkind, Wharton & Garrison Reed Smith Sidley Austin Simpson Thacher & Bartlett Skadden Skadden, Arps, Slate, Meagher & Flom Sullivan & Cromwell Weil Weil, Gotshal & Manges White & Case

Paul Weiss is set to open an office in Silicon Valley, bringing in a two partner team from Sullivan & Cromwell that includes intellectual property and technology group and AI practice co-head Nader Mousavi, as well as IP partner Mark Schenkel.

Mousavi spent 16 years at S&C, joining from WilmerHale in 2010, while Schenkel has been at the firm since 2017, making partner in 2024.

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