Baker McKenzie
A multinational corporate law firm known for cross-border transactions, international trade, tax, and dispute resolution.
Last updated August 31, 2026
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Overview
Baker McKenzie is a multinational law firm headquartered in Chicago and organized as a Swiss verein. Founded in 1949 by Russell Baker and John McKenzie, the firm developed from a Chicago practice serving the city’s growing Mexican American community into one of the world’s most extensive legal networks. Its international expansion began in 1955, when Baker’s son Donald helped establish a joint-venture office in Caracas, Venezuela. The firm subsequently opened offices in major commercial centers including Washington, Amsterdam, Brussels, Zurich, New York, and São Paulo. This early emphasis on coordinating legal work across jurisdictions became central to the Baker McKenzie identity. The firm advises corporations, financial institutions, governments, investors, and other organizations on corporate transactions, mergers and acquisitions, finance, tax, international trade, competition law, employment, intellectual property, technology, data protection, dispute resolution, arbitration, and regulatory matters. Its practice is especially associated with cross-border transactions and emerging-market work. Baker McKenzie has represented major multinational companies in tax disputes, intellectual-property matters, corporate reorganizations, and regulatory proceedings, while also undertaking pro bono litigation and public-interest work. Baker McKenzie was historically structured as a single international partnership, but became the first major law firm to adopt the Swiss verein model in 2004. Under that structure, constituent regional partnerships retain separate profit pools, accounting, taxation, and partner-compensation arrangements, while sharing brand, strategy, technology, and selected administrative functions. The model allows the firm to operate internationally while preserving local partnership autonomy. The firm grew substantially during the second half of the twentieth century. By 1978 it had 26 offices in 20 countries, and by 1990 it had 49 offices on six continents and approximately 1,500 lawyers. It reached about 3,000 lawyers and reported $1 billion in revenue in 2001. In 2005, approximately 70 partners and other lawyers from the dissolving international firm Coudert Brothers joined its New York office. In 2006, Unilever appointed Baker McKenzie to manage its worldwide trademark portfolio, then comprising more than 160,000 registrations, a significant example of a multinational outsourcing global intellectual-property administration to a law firm. Baker McKenzie has also been notable for its leadership diversity and geographic reach. Christine Lagarde became chair of the global executive committee in 1999, the first woman to lead the firm and one of the first women to head a major international law firm. She later became France’s finance minister and managing director of the International Monetary Fund. Milton Cheng became global chair in 2019 as the firm’s first Asian chair. In 2025, London partner Sunny Mann was announced as the next global chair, with his term scheduled to begin in October of that year. The firm’s history has included significant employment-discrimination and sexual-harassment litigation, public criticism over its work for clients using offshore structures, scrutiny of relationships with Russian state-linked entities, and a 2022 decision to separate from its Emirati partner Habib Al Mulla after controversial social-media comments. During the COVID-19 pandemic it reduced U.S. attorney salaries and later announced layoffs. In 2026, it announced a reorganization affecting up to one-tenth of its global business-services workforce, citing operational changes including greater use of artificial-intelligence tools. As of 2025, reference material described Baker McKenzie as having 71 offices in 45 countries and 4,595 attorneys.
History
Russell Baker began practicing in Chicago in 1925 through Baker & Simpson, a firm he established with Dana Simpson. The practice served the city’s Mexican American community, giving Baker experience with clients whose commercial and personal affairs crossed linguistic and cultural boundaries. Simpson retired in 1932. In 1949, John McKenzie joined Baker, and the firm adopted the Baker & McKenzie name. The firm’s international character emerged in 1955 after a Venezuelan lawyer approached Baker & McKenzie about creating a Caracas joint venture. Russell Baker’s son Donald moved to Caracas to launch the office. During the following three years, the firm expanded to Washington, D.C., Amsterdam, Brussels, Zurich, New York, and São Paulo. It became an early model for a multinational law firm built around coordinated local offices rather than a single-country practice. By 1978 it had 26 offices in 20 countries; by 1990 it had 49 offices on six continents and about 1,500 attorneys. Growth accelerated in the 1990s and 2000s. Christine Lagarde led the global executive committee from 1999 to 2004. The firm reached roughly 3,000 attorneys and $1 billion in reported revenue in 2001. In 2004 it became the first major law firm to adopt a Swiss verein structure. The following year, lawyers from Coudert Brothers joined its New York practice. In 2006, Unilever selected Baker McKenzie to administer its global trademark portfolio, demonstrating the firm’s ability to provide centralized international intellectual-property services. The firm expanded its corporate and transactional profile while continuing to advise on tax, trade, disputes, employment, and intellectual property. Its public matters included pro bono representation connected with Winkelman v. Parma City School District, tax litigation for Symantec against the Internal Revenue Service, representation of Microsoft in an IRS dispute, assistance in overturning Paul Chambers’s conviction in the Twitter Joke Trial, and representation of Facebook in a dispute concerning the valuation of assets transferred to an Irish holding company. Reuters ranked Baker McKenzie first by cross-border deal count from 2015 through 2022 and first for emerging-market deal involvement for eleven consecutive years, according to the supplied reference material. The firm has also faced controversies. Geoffrey Bowers brought an AIDS-discrimination complaint in New York in 1986; the matter was initially resolved in favor of his estate and later settled confidentially. In the 1990s, legal secretary Rena Weeks successfully sued the firm for sexual harassment, producing a major punitive-damages judgment that was upheld on appeal. The Pandora Papers later generated criticism of the firm’s offshore-tax work and its representation of clients connected with tax havens and Russian state-linked enterprises. Baker McKenzie left Russia in 2022 after the invasion of Ukraine and associated sanctions. It also separated from Habib Al Mulla in the United Arab Emirates after controversial social-media comments. Leadership in the modern period included Eduardo C. Leite, Paul Rawlinson, and Milton Cheng. Sunny Mann was announced as global chair in 2025. The firm’s current operating model remains decentralized: regional partnerships maintain separate economic systems while sharing brand, technology, strategy, and selected infrastructure. In early 2026, the firm announced a business-services reorganization affecting up to a tenth of that workforce, with increased use of artificial intelligence cited among the reasons. Reference material for 2025 described 71 offices in 45 countries and 4,595 attorneys.
- 2025
Sunny Mann becomes global chair
[1]Mann begins the global-chair term announced for October 2025.
- 2022
Russia exit
[1]The firm announces its departure from Russia after the invasion of Ukraine.
- 2019
Milton Cheng becomes global chair
[1]Cheng becomes the firm’s first Asian global chair.
- 2006
Unilever trademark mandate
[1]Unilever appoints the firm to manage its global trademark portfolio.
- 2004
Swiss verein conversion
[1]The firm adopts the Swiss verein organizational structure.
- 1999
Christine Lagarde becomes global chair
[1]Lagarde becomes the first woman to lead the firm.
- 1990
Global six-continent network
[1]The firm reaches 49 offices and approximately 1,500 attorneys.
- 1978
Network reaches 26 offices
[1]Baker & McKenzie operates in 20 countries.
- 1955
International expansion begins
[1]The firm launches a joint-venture office in Caracas, beginning its multinational network.
- 1949
Baker & McKenzie is formed
[1]John McKenzie joins Russell Baker and the firm takes the Baker & McKenzie name.
Products and positioning
A highly international, full-service law firm differentiated by its cross-border network, local-market capability, and coordinated multinational legal advice.
Corporate legal services
Corporate and M&A
Advice on mergers, acquisitions, joint ventures, reorganizations, investments, and other corporate transactions, with a particular emphasis on coordinating matters across multiple jurisdictions.
Tax legal services
Tax
International tax planning, tax controversy, transfer pricing, transactional tax, and advice on the tax consequences of cross-border structures and investments.
Regulatory legal services
International trade
Advice on customs, export controls, sanctions, trade remedies, supply chains, and other regulatory issues affecting international commerce and investment.
Disputes
Dispute resolution and arbitration
Litigation, international arbitration, investigations, and other contentious services for businesses, governments, and institutions operating across borders.
Intellectual-property services
Intellectual property
Trademark, copyright, patent, technology, and brand-protection advice, including administration of large multinational trademark portfolios.
Controversies
2022
UAE partner separation
Baker McKenzie separated from Habib Al Mulla after controversial homophobic posts attributed to its Emirati partner. The firm said the move was intended to support an inclusive work environment.
2021
Pandora Papers offshore-tax scrutiny
The International Consortium of Investigative Journalists reported that Baker McKenzie helped establish offshore structures for clients and represented organizations associated with tax-haven arrangements. The reporting prompted criticism of the firm’s role in international tax avoidance.
1994
Rena Weeks sexual-harassment litigation
Legal secretary Rena Weeks won a sexual-harassment action against the firm. A large punitive-damages judgment was upheld by the California Court of Appeal in 1998.
1986
Geoffrey Bowers AIDS-discrimination complaint
New York lawyer Geoffrey Bowers alleged that Baker McKenzie dismissed him after AIDS-related lesions appeared. The matter was resolved in favor of his estate, followed by later confidential settlement discussions.
Brand decisions
2026
Restructure global business servicesStrategyBackground
The firm cited organizational change and increased use of artificial-intelligence programs as factors affecting its support-function model.
Action taken
It announced layoffs affecting up to one-tenth of its global business-services workforce.
Aftermath
The reorganization was expected to affect hundreds of roles; fuller implementation details were not provided in the reference material.
2022
Exit RussiaStrategyBackground
Russia’s invasion of Ukraine and resulting sanctions created legal, reputational, and operational issues for the firm’s Russia-related work.
Action taken
After reviewing Russia-related operations and client matters, Baker McKenzie announced that it would leave Russia.
Aftermath
The decision ended the firm’s Russia operations while it continued serving clients in other markets.
2004
Adopt the Swiss verein structureStrategyBackground
The firm needed an organizational model capable of supporting a large multinational network while retaining regional autonomy.
Action taken
Baker McKenzie converted to a Swiss verein, separating regional profit pools and related partnership systems while sharing selected global functions.
Aftermath
The firm continued operating as a decentralized international organization with common branding and infrastructure.
1955
Build a multinational office networkStrategyBackground
A Venezuelan lawyer sought a joint-venture office with the Chicago firm, creating an opportunity to serve clients through coordinated local practices.
Action taken
Baker McKenzie established a Caracas office and then expanded to additional commercial centers.
Aftermath
The decision established the international network that became the firm’s defining business model.
Recent events
- Unconfirmed
Baker McKenzie wins Best Law Firm in Africa award[3]
Baker McKenzie won the EMEA Finance African Banking Awards Best Law Firm in Africa Award for 2021.
- Unconfirmed
Baker McKenzie wins African Legal Awards[4]
Baker McKenzie won the Employment Law Team of the Year, Rising Star, and Children’s Advocate awards at the African Legal Awards.
Reported
Baker McKenzie appoints Kate Stonestreet global COO[5]
Baker McKenzie appointed Kate Stonestreet as its global chief operating officer, overseeing the firm’s business services function and an internal services transformation project.
Baker McKenzie appoints Bruce Schubach as Director of Africa Operations[6]
Baker McKenzie appointed Bruce Schubach as its Director of Africa Operations, effective 1 January 2021. The article says he will oversee implementation of the firm's Africa strategy.
Baker McKenzie and SparkBeyond announce AI collaboration[7]
Baker McKenzie and SparkBeyond announced a collaboration to apply SparkBeyond's AI-powered problem-solving technology to legal services, initially using it to explore future client needs and how Baker McKenzie might adapt its business.
Sources8 sources
- 1Baker McKenzieen.wikipedia.org
- 2Pandora Papers: The offshore system of Baker McKenzieicij.org
- 3Baker McKenzie获得非洲最佳律师事务所奖polity.org.za
- 4Baker McKenzie 获非洲法律大奖polity.org.za
- 5Baker McKenzie任命Kate Stonestreet为全球首席运营官lawyersweekly.com.au
- 6Baker McKenzie 任命 Bruce Schubach 为非洲运营总监polity.org.za
- 7Baker McKenzie与SparkBeyond宣布人工智能合作polity.org.za
- 8Baker McKenzie wins Employment Team of the Year again, Rising Star and Children's Advocate Awardbusinessghana.com
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