|Headquarters||71 South Wacker Drive, Chicago, Illinois, United States |
|No. of offices||25 total|
|No. of lawyers||1,507 (2015) |
|Major practice areas||General practice|
|Key people||Paul W. Theiss (Chairman)|
|Revenue||$1.26 billion (2016)|
|Company type||Limited liability partnership|
Mayer Brown LLP is a global law firm founded in Chicago and is considered to be one of the world's leading law firms and the 15th largest law firm in the United States. It has offices in 24 cities across the Americas, Asia, Europe, and the Middle East, with its largest offices being in Chicago, Washington DC, New York City, Hong Kong and London. Mayer Brown has approximately 1,500 lawyers and by revenue is the 17th largest law firm in the world. 
The three firms that now form the core of Mayer Brown were all founded in the 19th century. The US portion of the firm was founded in 1881 in Chicago, by Adolf Kraus and Levy Mayer, and was shortly thereafter known as Kraus, Mayer & Brackett. After several changes in name to reflect its changing membership the firm eventually became known in the US as Mayer, Brown & Platt. The English portion of the firm, Rowe & Maw, was established in 1895 in London and operated under that name until joining with Mayer, Brown & Platt in 2002 to form Mayer, Brown, Rowe & Maw. In 2007 the amalgamated firm shortened its name to Mayer Brown. Johnson Stokes & Master was formed in 1863 in Hong Kong and is today known as Mayer Brown JSM after merging with Mayer Brown in 2008.
The firm has offices in Bangkok, Beijing, Brussels, Charlotte, Chicago, Düsseldorf, Dubai, Frankfurt, Hanoi, Ho Chi Minh City, Hong Kong, Houston, London, Los Angeles, Mexico City, New York City, Palo Alto, Paris, San Francisco, Shanghai, Singapore, and Washington DC; and, in association with Tauil & Chequer Advogados, offices in Brasília, Rio de Janeiro, São Paulo, and Vitória.
Advises bank holding companies, commercial banks, investment banks, insurance companies, asset-based lenders, leasing companies, institutional real estate companies, finance companies, funds and investors and borrowers in various industries.
Represents both issuers and underwriters in a wide variety of debt and equity offerings as well as working at the forefront of the market for securitized products.
Provides legal services on transactions including cross-border deals and industry-specific issues. Sub-practices include capital markets, mergers and acquisitions, private equity and business and technology sourcing.
Advises on a full range of domestic, international and cross-border cybersecurity and privacy issues.
Advises on issues of employment, employee benefits, executive compensation, ERISA litigation and pensions.
Provides financial services organizations with representation on strategic, regulatory, compliance and enforcement issues. Advises on traditional banking, broker-dealer, investment management, cross-border investigation and enforcement and insurance regulation issues.
Advises on the full gamut of global mobility issues that businesses face on a daily basis including visa and work permit authorizations.
Represents clients in areas of domestic and global public policy and provides advice on the government contracting process at the federal, state and local levels.
Advises on international trade and investment issues, including market access and trade policy, trade remedies, trade compliance, international litigation and dispute settlement, ITC Section 337 investigations and the WTO.
Assesses IP portfolios; performs due diligence for acquisitions; secures patents, trademarks, trade secrets and copyrights; and uses litigation to resolve business disputes over infringement or misappropriation.
Helps clients create a wide variety of durable and effective joint venture and alliance structures both within a particular jurisdiction and across borders.
Provides legal services on matters of antitrust and competition, commercial litigation, consumer litigation and class actions, electronic discovery and records management, employment and ERISA, environmental, international arbitration, product liability and mass torts, securities enforcement and litigation and white-collar defense and compliance. In the US, argues before the Supreme Court and federal and state appellate courts.
Advises clients inbound to and outbound from the Middle East and North Africa on a range of legal issues. Mayer Brown's Dubai office serves as a hub for its growing Middle East practice.
Advises clients on a wide spectrum of matters that involve sensitive national security issues with experience working with the Department of Defense (DOD), as well as the Departments of State, the Treasury, Justice (DOJ), and Homeland Security (DHS); with federal law enforcement, intelligence, and military agencies such as the Federal Bureau of Investigation (FBI), Central Intelligence Agency (CIA), and National Security Agency (NSA); and with the increasing number of government entities that play a growing role in US national security today on issues ranging from energy to technology to trade.
Provides a full-service offering to clients engaged in the funds and alternative investments industry. The practice spans the entire life cycle of a fund, its sponsor/manager as well as all underlying investments.
Provides representation in acquisition, disposition, construction, leasing, financing, zoning and environmental matters for commercial banks, real estate investment trusts, institutional investors, pension funds and pension fund advisers, private equity funds and sponsors, opportunity funds, governments, statutory bodies, investment banks, industrial banks, insurance companies, real estate holding companies, developers and corporations.
Advises on restructuring, bankruptcy and insolvency matters, representing liquidators, receivers, administrators, bondholders, lenders, liquidity providers, trustees, debtor-in-possession providers, company directors, insurers, pension fund trustees and corporate debtors and creditors.
Provides representation in matters of corporate, partnership and individual taxation, including taxation of cross-border transactions. Includes sub-practices in transactions, consulting and planning, audits, administrative appeals, litigation and international transfer pricing.
Offers in-depth understanding of technology transactions to secure high-value contracts, improve operations, build digital platforms and ensure compliance.
Advises high-net-worth individuals on matters related to their business and investment interests, including minimizing taxes and accommodating family situations.
Mayer Brown is a signatory to the Pro Bono Institute's Law Firm Pro Bono Challenge which commits the firm to devote 3 percent of total billable time to pro bono work and a member of the UK Joint Protocol on Pro Bono Work, which stipulates that pro bono legal work must be carried out to the same standard as chargeable work. 
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