December 3, 2025 – Mayer Brown earned top rankings in the 2026 edition of ITR World Tax, a leading guide to tax firms and lawyers worldwide.
Mayer Brown ranked Tier 1 in seven practice categories:
- Tax Controversy: Brazil, California, Illinois, New York, Texas, Washington DC
- Transactional Tax: France
Thirty-five firm lawyers were honored in the following categories:
- Jenny Austin: Tax Controversy, Woman Leader in Tax, Highly Regarded: Illinois
- James Barry: Transactional Tax, Highly Regarded: Illinois
- Jason Bazar: Notable Practitioner: New York
- Laurent Borey: Tax Controversy, Transactional Tax, Highly Regarded: France
- Cabell Chinnis: Tax Controversy, Transfer Pricing, Highly Regarded: United States and California
- Nicolas Danan: Real Estate, Transactional Tax, Rising Star: France
- Elodie Deschamps: Transactional Tax, Woman Leader in Tax, Highly Regarded: France
- Thomas Dieker: Transactional Tax, Highly Regarded: Germany
- Paul DiSangro: Tax Controversy, Highly Regarded: California
- Ben Eaton: Real Estate, Highly Regarded: United Kingdom
- Susan Günther: Transactional Tax, Highly Regarded: Germany
- John Hildy: Tax Controversy, Highly Regarded: Illinois
- James Hill: Transactional Tax, Highly Regarded: United Kingdom
- Benjamin Homo: Tax Controversy, Highly Regarded: France
- Michelle Jewett: Woman Leader in Tax, Highly Regarded: New York
- Volker Junge: Transactional Tax, Highly Regarded: Germany
- Elena Khripounova: Woman Leader in Tax, Highly Regarded: District of Columbia
- Brian Kittle: Tax Controversy, Transfer Pricing, Highly Regarded: United States and New York
- Thomas Kittle-Kamp: Tax Controversy, Transfer Pricing, Highly Regarded: United States and Illinois
- Kenneth Klein: Tax Controversy, Highly Regarded: District of Columbia
- Christopher Lalloz: Tax Controversy, Highly Regarded: France
- Ana Luiza Martins: Tax Controversy, Women in Tax Leader, Highly Regarded: Brazil
- Matthew Mortimer: General Corporate Tax, Transactional Tax, Notable Practitioner: United Kingdom
- Jason Osborn: Transfer Pricing, Highly Regarded: United States
- Edward Osterberg Jr: Tax Controversy, Highly Regarded: Texas
- Olivier Parawan: Real Estate, Transactional Tax, Highly Regarded: France
- Anthony Pastore: Tax Controversy, Transfer Pricing, Rising Star: Illinois
- Leah Robinson: General Corporate Tax, Tax Controversy, Woman Leader in Tax, Highly Regarded: New York
- William Schmalzl: Tax Controversy, Highly Regarded: Illinois
- Kitty Swanson: Transactional Tax, Woman Leader in Tax, Notable Practitioner: United Kingdom
- Ivan Tauil: Tax Controversy, Highly Regarded: Brazil
- Eduardo Maccari Telles: Tax Controversy, Highly Regarded: Brazil
- Gary Wilcox: Tax Controversy, Highly Regarded: District of Columbia
- Joel Williamson: Tax Controversy, Transfer Pricing, Highly Regarded: United States and Illinois
- Kai Yan: General Corporate Tax, Rising Star: Germany