Mayer Brown achieved first-tier rankings in 113 national and metropolitan categories, including 35 national first-tier rankings, in the 2020 edition of the US News/Best Lawyers “Best Law Firms” list. Overall, the firm was ranked in 188 national and metropolitan categories. In addition, Mayer Brown was named “Law Firm of the Year” in the Securitization and Structured Finance Law category.

Rankings were determined primarily by responses to a survey in which clients were asked to evaluate law firms on their expertise, responsiveness, understanding of the respondent's business and its needs, cost-effectiveness, civility and whether the respondent would refer another client to the firm.

The categories in which Mayer Brown received a first-tier ranking are below.

National

• Antitrust Law
• Appellate Practice
• Banking and Finance Law
• Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law
• Commercial Litigation
• Communications Law
• Corporate Law
• Criminal Defense: White-Collar
• Employee Benefits (ERISA) Law
• Energy Law
• Financial Services Regulation Law
• Franchise Law
• Immigration Law
• Information Technology Law
• Insurance Law
• International Trade and Finance Law
• Litigation – Antitrust
• Litigation – Environmental
• Litigation – ERISA
• Litigation - Intellectual Property
• Litigation - Mergers & Acquisitions
• Litigation – Securities
• Litigation – Tax
• Mass Tort Litigation / Class Actions – Defendants
• Patent Law
• Project Finance Law
• Public Finance Law
• Railroad Law
• Real Estate Law
• Securities / Capital Markets Law
• Securities Regulation
• Securitization and Structured Finance Law
• Sports Law
• Tax Law
• Technology Law

Charlotte

• Banking and Finance Law
• Securitization and Structured Finance Law
• Tax Law

Chicago


• Administrative / Regulatory Law
• Antitrust Law
• Appellate Practice
• Arbitration
• Banking and Finance Law
• Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law
• Bet-the-Company Litigation
• Commercial Litigation
• Communications Law
• Corporate Compliance Law
• Corporate Governance Law
• Corporate Law
• Criminal Defense: White-Collar
• Employee Benefits (ERISA) Law
• Franchise Law
• Government Relations Practice
• Information Technology Law
• Insurance Law
• Litigation - Antitrust
• Litigation - Environmental
• Litigation - ERISA
• Litigation - Labor & Employment
• Litigation - Mergers & Acquisitions
• Litigation - Securities
• Litigation - Trusts & Estates
• Mass Tort Litigation / Class Actions - Defendants
• Mediation
• Mergers & Acquisitions Law
• Patent Law
• Personal Injury Litigation - Defendants
• Product Liability Litigation - Defendants
• Project Finance Law
• Public Finance Law
• Real Estate Law
• Securities / Capital Markets Law
• Securities Regulation
• Securitization and Structured Finance Law
• Sports Law
• Tax Law
• Technology Law
• Trusts & Estates Law

Houston

• Corporate Law
• Energy Law
• Real Estate Law
• Tax Law
• Venture Capital Law

Los Angeles

• Natural Resources Law

New York City

• Antitrust Law
• Appellate Practice
• Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law
• Real Estate Law
• Securitization and Structured Finance Law
• Tax Law

San Jose

• Litigation – Tax
• Patent Law

Washington DC

• Administrative / Regulatory Law
• Advertising Law
• Antitrust Law
• Appellate Practice
• Banking and Finance Law
• Commercial Litigation
• Energy Law
• Financial Services Regulation Law
• Immigration Law
• Information Technology Law
• International Trade and Finance Law
• Leisure and Hospitality Law
• Litigation - Antitrust
• Litigation - Intellectual Property
• Litigation - Securities
• Product Liability Litigation - Defendants
• Railroad Law
• Real Estate Law
• Securities / Capital Markets Law
• Tax Law