Jenner & Block

From its Windy City roots, Jenner & Block has grown to more than 500 lawyers with offices in Chicago; London; downtown Los Angeles and Century City; New York; San Francisco; and Washington, DC. The client roster is a blend of established corporate institutions and trendy players in the arts, entertainment, consumer brands, and technology. 

A Litigation Star Is Born

Founded in 1914 by a trio of lawyers with big-name Chicago firm pedigrees, Jenner & Block’s early clients included the city’s banks, mortgage houses, and blue-collar corporations. In the 1920s, the firm’s profile grew as litigator Edward Johnston developed into one of the nation’s foremost antitrust attorneys. Johnston’s victory in the landmark 1925 U.S. Supreme Court case Maple Flooring Manufacturers Association v. United States cemented the firm’s reputation as a litigation powerhouse, a reputation it still holds today.

Collaboration Is Key

Jenner & Block has leading international litigation, arbitration, and investigations practices. The firm's top-notch appellate team has secured victories in courts at all levels and recorded more than 100 arguments before the U.S. Supreme Court, including the landmark win for LGBTQ+ rights in Lawrence v. Texas. The litigation department is fully integrated, meaning lawyers work across subpractices and regions through collaboration, and includes Fellows of the American College of Trial Lawyers and former U.S. attorneys, U.S. Supreme Court clerks, and general counsel. The firm is also one of only a handful of firms that have been nationally recognized for higher education, Native American law, and law firm defense practices.

Beyond litigation, Jenner & Block handles investigations, government strategy, regulatory, and transactional work. The firm’s nationally recognized Native American law practice, led by enrolled members and descendants of federally recognized tribes, preserves tribal sovereignty and empowers tribal governments. The team secured landmark victories in McGirt and Brackeen v. Haaland while handling matters spanning litigation, government relations, administrative law, and economic development. The firm's Organizational Values and Strategy Task Force helps clients navigate inclusion initiatives, offering guidance on litigation defense, government inquiries, program compliance, and liability issues. Jenner & Block demonstrates its commitment to public service through extensive pro bono work, including across civil rights and access to justice initiatives.

A Professional Home

Jenner & Block invests in attorney development. Junior associates explore practice areas before matching with groups as third years and receive billable credit for a diverse first-year experience. The firm provides professional development programming, including cohort-specific programs, boot camps, and personalized coaching. Associates take leadership roles on committees, in affinity groups, and with task forces, developing them into future firm owners.

• Jenner & Block represented Kraft Heinz, Kellogg, General Mills, and Nestlé USA in securing a landmark jury verdict finding major egg producers and trade groups liable for a long-running price-fixing conspiracy. This victory marked the first successful jury verdict in a series of related antitrust cases.
• Representing the Association of American Universities (AAU) in a series of federal court challenges to the Trump administration's unlawful attempts to cap research reimbursements across the NIH, DOE, DOD, and NSF. The firm has secured temporary restraining orders, injunctions, and summary judgment victories, protecting more than $9 billion in annual research funding for institutions nationwide.
• Jenner & Block represented three tribes, Cherokee Nation, the Morongo Band of Mission Indians, and Oneida Nation, before SCOTUS in Brackeen v. Haaland, a case concerning the constitutionality of the Indian Child Welfare Act (ICWA). The 7-2 decision upheld ICWA in its entirety.
• Partners Neil Barofsky and Matthew Cipolla serve as ombudsperson and deputy ombudsperson providing oversight of an investigation into Credit Suisse's historical ties to Nazi-era clients. In 2026, Neil testified before the U.S. Senate Judiciary Committee, revealing previously unreported relationships between the bank and Nazi-era entities and individuals.

• No. 1 pro bono firm in the United States (13 times); named to the A-List, considered the best of the best among Am Law 20 firms, and awarded Law Firm of the Year, 2025—The American Lawyer
• Co-managing partner Randy Mehrberg named Managing Partner of the Year, 2025—The American Lawyer
• Recognized as a leading firm in 38 practice areas across litigation, investigations, government controversies, regulatory, and complex transactions, 2025—Chambers USA
• 500 skilled litigators and distinguished trial lawyers, including 9 fellows—American College of Trial Lawyers
• Named an Intimidating Opponent and included on the BTI Law Firms Most Feared in Litigation list, 2025—BTI