Sidley Austin LLP

Firm Profile

Rankings

Global

Awarded leading firm in Global 2026

Chambers and Partners

Ranked Departments:

Chambers and Partners

Ranked Individuals:

Overview

Provided by Sidley Austin LLP

Chair of Executive Committee: Brian J. Fahrney

Chair of the Management Committee: Yvette Ostolaza

Number of partners worldwide: Over 650

Number of lawyers worldwide: 2,300

Firm Overview:

Sidley is an elite global law firm with US$3.1 billion in revenue powered by lawyers who practice at the highest level of the profession. Backed by 158 years of experience, we deliver superior service to a high-caliber group of market-leading clients worldwide, while placing a premium on collaboration and diversity.

Our firm boasts a roster of 2,300 lawyers who wield deep experience in litigation, transactional, and regulatory matters spanning over 50 legal disciplines and industries.

With 22 offices, including our new Miami office, situated in major commercial and financial capitals around the world, our lawyers possess the cultural awareness and legal acumen needed to advise clients in today’s global economy. Follow Sidley on Twitter@SidleyLaw.

The Americas:

More than 150 years after the founding of the firm, Sidley today comprises a diverse group of legal professionals who are dedicated to teamwork, collaboration, and superior client service. Sidley’s US offices now include Boston, Century City, Chicago, Dallas, Houston, Los Angeles, Miami, New York, Palo Alto, San Diego, San Francisco, and Washington, D.C. The firm has built a reputation for successfully representing clients on complex transactional, regulatory, and litigation matters spanning a range of legal areas. The firm represents clients across many industries including banking and financial services, insurance, life sciences, healthcare, energy, technology, and transportation.

Sidley has maintained a valued presence in Latin America for over 50 years. It represents major local and multinational companies and financial institutions, private equity and other investment funds, sovereign governments and state-owned enterprises in transactions throughout South America, Central America and the Caribbean.

Europe:

The firm’s Brussels office serves as the hub of Sidley’s European Union law practice and is home to an experienced multinational team of around 30 professionals. Sidley represents clients before the European institutions, the Court of Justice of the European Union and certain Member State bodies and courts, including the Belgian courts and administrative authorities. Sidley’s office in Geneva, Switzerland, is home to both its top-ranked international trade practice and one of Europe’s foremost international arbitration and cross-border dispute teams. The office comprises an experienced multinational team of more than 20 lawyers, policy advisors, economists, analysts, paralegals, and legal assistants. The firm’s Geneva World Trade Organization team is the top-ranked leader in shaping and enforcing international trade rules. The group represents many different WTO Members and leading multinationals and associations in complex WTO dispute settlement and in resolving trade disputes. Sidley’s office in London, its largest in Europe, was founded in 1974. With lawyers qualified to practice in both the UK and the U.S., the London office coordinates cross-border projects spanning Europe, the Middle East, Africa, Asia and the Americas. Sidley’s clients in London include the world’s leading financial institutions, funds, private equity sponsors, and multinational companies spanning a wide range of industries.

Asia Pacific:

Sidley is one of the few global firms to have maintained on-the-ground client service capabilities in Asia for 40 years. During that time, the firm has come to be acknowledged by its clients and industry publications as a leading law firm in the region. The firm now has approximately 230 legal professionals based in six offices in the region in Hong Kong, Shanghai, Beijing, Singapore, Sydney and Tokyo. Sidley’s lawyers provide US, Hong Kong, English, Singapore, and Japanese law advice to clients where and when they need it. The Sidley team in China, one of the largest of the international law firms, advises clients on US, Hong Kong, English and Singapore law, speaking fluent English as well as fluent and native Mandarin and Cantonese. The Singapore office serves as an important hub for transactions involving Indonesia and India, as well as Malaysia, Thailand, Vietnam, the Philippines, Cambodia, Mongolia, China, and South Korea. The ability to provide both local and international law services is of great importance to its clients as they continue to grow their businesses regionally and globally. Sidley’s team in Singapore provides multi-jurisdictional legal advice principally in the fields of capital markets; global finance, including bankruptcy, restructuring, structured finance, securitisation, and asset finance; mergers and acquisitions; international arbitration; investment funds; information technology, privacy, data security, and compliance; life sciences; and energy and project finance. Sidley’s office in Australia, based in Sydney, comprises US-qualified lawyers who either are native Australian or have worked in Australia for many years.

Ranked Offices

Provided by Sidley Austin LLP

Address (A-Z)

USA - Head office

Illinois

One South Dearborn , Chicago, Illinois, USA, IL 60603, Chicago

www.sidley.com

+1 312 853 7000

Australia

New South Wales

Level 10, 7 Macquarie Place, Sydney, New South Wales, Australia, NSW 2000, Sydney

Belgium

Brussels Capital Region

NEO Building, Rue Montoyer 51, Montoyerstraat, Brussels, Brussels Capital Region, Belgium, B-1000, Brussels

China

Beijing

Suite 608, Tower C2, Oriental Plaza, No 1 East Chang An Avenue, Dong Cheng District, Beijing, Beijing, China, 100738, Beijing


Hong Kong

39/F, Two Int’l Finance Centre Central , Hong Kong, Hong Kong, China, Hong Kong

Japan

Tokyo-to

Marunouchi Building 23F., 4-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo, Tokyo-to, Japan, 100-6323, Tokyo

Singapore

Singapore Island

Level 31 Six Battery Road , Singapore, Singapore Island, Singapore, 049909, Singapore

Switzerland

Geneva

Rue du Pré-de-la-Bichette 1, Geneva, Geneva, Switzerland, CH-1202, Geneva

UK

Greater London

70 ST MARY AXE , London, Greater London, UK, EC3A 8BE, London

USA

Massachusetts

60 State Street, 36th Floor, Boston, Massachusetts, USA, MA 02109, Boston


Texas

1000 Louisiana Street, Suite 6000, Houston, Texas, USA, TX 77002, Houston


California

350 South Grand Avenue , Los Angeles, California, USA, CA 90071, Los Angeles


New York

787 Seventh Avenue , New York, New York, USA, NY 10019, New York


California

1001 Page Mill Road, Building 1, Palo Alto, California, USA, CA 94304, Palo Alto


California

555 California Street, Suite 2000, San Francisco, California, USA, CA 94104, San Francisco


District of Columbia

1501 K Street NW, Washington, DC, District of Columbia, USA, 20005, Washington, DC

Chambers Laurel

Ranked Departments

Band
Chambers Laurel

Ranked Individuals

Band
  • 2
    Andrew W Shoyer

    International Trade/WTO, Asia-Pacific Region

  • 3
    Richard LA Weiner

    International Trade/WTO, Asia-Pacific Region

  • 4
    Shawn Higgins

    International Trade/WTO, Asia-Pacific Region

  • 1
    Bruce Dailey

    Capital Markets: International, Australia

  • 1
    Mimma Barila

    Capital Markets: International, Australia

  • 2
    Elisabetta Righini

    Competition/European Law: State Aid, Belgium

  • 4
    Ken Daly

    Competition: EU, Belgium

  • U
    Anne Robert

    Competition: EU, Belgium

  • F
    Maarten Meulenbelt

    Competition: EU, Belgium

  • 1
    Carrie Li

    Capital Markets: High-Yield Products (International Firms), China

  • 1
    Yuet Ming Tham

    Corporate Investigations/Anti-Corruption (International Firms), China

  • 3
    Desmond Ang

    Dispute Resolution: Arbitration (International Firms), China

  • 3
    Dominic James

    Financial Services: Contentious Regulatory (International Firms), China

  • 3
    Yan Zhang

    Dispute Resolution: Arbitration (International Firms), China

  • 4
    Carrie Li

    Capital Markets: Debt (International Firms), China

  • 4
    Constance Choy

    Capital Markets: Equity (International Firms), China

  • 4
    David Kalani Lee

    Investment Funds (International Firms), China

  • 4
    Lei Li

    Corporate Investigations/Anti-Corruption (International Firms), China

  • 4
    Meng Ding

    Capital Markets: Equity (International Firms), China

  • 4
    Olivia Ngan

    Banking & Finance: Hong Kong-based (International Firms), China

Contributions

Latest contributions provided by Sidley Austin LLP

Global Practice Guide
Andrew Shoyer
Sven De Knop
Todd Friedbacher
Christopher Lock
Authored by
Andrew Shoyer, Sven De Knop, Todd Friedbacher, Christopher Lock
Article • Dec 2025
Global Practice Guide
Elizabeth Shea Fries
Authored by
Elizabeth Shea Fries
Article • Sep 2025
Global Practice Guide
Evan Grosch
Ram Sachs
Kai Liekefett
Derek Zaba
Authored by
Evan Grosch, Ram Sachs, Kai Liekefett, Derek Zaba
Article • Sep 2025

All contributions provided by Sidley Austin LLP

Sort by - Most recent
Title and authorsContent typePublication dateMedia type
Private Equity 2025 | USA – California | Trends and Developments
Authored by: Nicolai Schwarz-Gondek, Payom Pirahesh, Vijay Sekhon, Mehdi Khodadad
Global Practice Guide Aug 2025 Article
Private Equity 2025 | USA | Law and Practice
Authored by: John Godfrey, Justin Macke, Brien Wassner, Vijay Sekhon
Global Practice Guide Aug 2025 Article
Cybersecurity 2025 | UK | Trends and Developments
Authored by: Eleanor Dodding, Anila Rayani, Francesca Blythe, William Long
Global Practice Guide Feb 2025 Article
Cybersecurity 2025 | UK | Law and Practice
Authored by: Francesca Blythe, Anila Rayani, Eleanor Dodding, William Long
Global Practice Guide Feb 2025 Article

Sidley Austin LLP