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Paul, Weiss, Rifkind, Wharton & Garrison

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A leading New York-founded international law firm advising major companies, financial institutions, governments, and individuals on complex litigation, transactions, investigations, and public-policy matters.

Last updated October 6, 2026

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Overview

Paul, Weiss, Rifkind, Wharton & Garrison is a prominent American law firm headquartered in New York City. Commonly known as Paul Weiss, it is organized as a professional partnership rather than a publicly traded corporation or consumer-facing legal-services company. The firm is recognized for high-value litigation, corporate transactions, public-company advice, private equity work, restructuring, investigations, appellate advocacy, and matters involving significant regulatory, constitutional, and public-policy questions. The firm traces its origins to 1875, when Samuel Weiss established a New York law practice. Its present name reflects the successive participation of important partners and predecessor practices. Lloyd K. Garrison, a notable civil-liberties lawyer and public figure, became associated with the firm in the twentieth century, while the names Paul, Rifkind, Wharton, and Garrison came to identify the partnership as it developed into a major full-service institution. The firm’s history is closely associated with New York’s corporate and litigation bars, although its work has long extended across the United States and into international transactions and disputes. Paul Weiss operates primarily through specialist practices rather than standardized products. Its lawyers represent public companies, private-equity sponsors, investment funds, financial institutions, technology businesses, media companies, emerging companies, nonprofit organizations, and individuals. The firm’s corporate lawyers advise on mergers and acquisitions, takeovers, joint ventures, securities offerings, governance, activist situations, and complex financings. Its litigation lawyers handle commercial disputes, securities litigation, antitrust matters, intellectual-property cases, white-collar defense, internal investigations, appellate work, and disputes involving public institutions or major industries. The firm has also built a significant restructuring and special-situations practice, advising debtors, creditors, lenders, investors, and boards in financial distress and insolvency matters. Regulatory and investigations work includes inquiries by U.S. enforcement agencies, securities and antitrust authorities, and other governmental bodies. Its public-law and constitutional capabilities have contributed to the firm’s profile in matters with consequences beyond the immediate client dispute. Paul Weiss is known for recruiting prominent lawyers and for maintaining a high-end, selective market position. Its clients and matters often involve substantial legal, financial, reputational, or public-policy stakes. The firm’s international reach is supported by offices and cross-border capabilities in major financial and commercial centers, while many of its lawyers continue to focus on U.S. federal and state courts, agencies, and markets. As with other elite law firms, its business is based on legal fees and professional relationships rather than the sale of physical goods. The firm remains active and privately held. Its public identity is particularly associated with complex litigation, corporate governance, mergers and acquisitions, private equity, investigations, restructuring, and matters requiring coordinated advice across legal, regulatory, and strategic dimensions.

History

Paul Weiss originated in New York in 1875 with the practice founded by Samuel Weiss. Over time, the practice expanded through the addition and succession of partners whose names became part of the firm’s identity. The partnership eventually developed into Paul, Weiss, Rifkind, Wharton & Garrison, retaining a name that reflects the firm’s institutional history rather than a single founder or corporate parent. The firm’s growth coincided with the expansion of New York as a center of finance, commerce, media, and government. It developed a strong reputation in litigation while also building corporate, securities, antitrust, restructuring, and regulatory practices. Its lawyers represented businesses and individuals in disputes and investigations where the legal issues were often connected to broader financial, constitutional, or public-policy questions. Lloyd K. Garrison was among the historically important figures associated with the firm. His career included work in civil liberties and public affairs, helping reinforce the firm’s profile beyond conventional commercial representation. The firm’s later development was shaped by partners such as Randolph E. Paul, a prominent tax lawyer, and other leaders whose practices contributed to its corporate and litigation capabilities. The addition of the names Rifkind and Wharton reflected further institutional evolution and the consolidation of influential New York practices. During the twentieth and twenty-first centuries, Paul Weiss expanded from its New York base into a broader U.S. and international platform. It added offices and cross-border capabilities serving clients involved in global finance, mergers and acquisitions, private equity, investigations, technology, media, and regulated industries. The firm’s international work has generally complemented, rather than displaced, its core strengths in U.S. courts, federal agencies, securities markets, and corporate governance. The firm’s modern practice is organized around sophisticated legal matters rather than a mass-market service model. Its lawyers advise boards and executives, represent companies and investors in transactions, conduct internal investigations, defend clients in government inquiries, litigate major commercial and securities cases, and advise parties in restructurings and insolvency proceedings. The firm is also active in appellate, constitutional, antitrust, intellectual-property, and public-law matters. Paul Weiss has remained a private professional partnership. Its leadership model is based on partners rather than public-company officers, and its reputation depends heavily on lawyer recruitment, client relationships, courtroom performance, transaction execution, and institutional credibility. Brad S. Karp became chairman in 2008 and has been a prominent public representative of the firm. The firm continues to be identified with high-value, complex legal work for major companies, financial institutions, investors, public bodies, and individuals.

  • 2008

    Brad Karp becomes chairman

    [3]

    Brad S. Karp became chairman of the firm and has continued to be associated with its leadership and public profile.

  • 1875

    Founding of the New York practice

    [1]

    Samuel Weiss established the law practice that forms the historical foundation of Paul, Weiss, Rifkind, Wharton & Garrison.

Products and positioning

Elite, full-service international law firm positioned for complex, high-stakes litigation, corporate transactions, investigations, restructuring, and public-law matters.

  • Legal services

    Litigation

    The firm represents companies, financial institutions, boards, investors, and individuals in complex commercial disputes, securities cases, antitrust matters, intellectual-property litigation, public-law disputes, and high-stakes trial and appellate proceedings. Its work can include strategy before litigation, emergency relief, discovery, trial, appeal, and coordination with regulatory or investigative responses.

  • Legal services

    Corporate transactions

    Paul Weiss advises public companies, private-equity sponsors, investment funds, strategic buyers, sellers, and boards on mergers, acquisitions, divestitures, joint ventures, takeovers, securities offerings, financings, governance, and other strategic transactions. The practice covers both negotiated deals and situations involving contested control, shareholder activism, or heightened regulatory scrutiny.

  • Legal services

    Investigations and white-collar defense

    The firm conducts internal investigations and represents organizations and individuals in criminal, civil, regulatory, and congressional inquiries. Matters may involve fraud, corruption, securities issues, accounting, sanctions, market conduct, compliance failures, or other sensitive allegations. The practice commonly works with boards, audit committees, special committees, executives, and regulated businesses.

  • Legal services

    Restructuring and insolvency

    Paul Weiss advises debtors, creditors, lenders, investors, boards, and other stakeholders in restructurings, reorganizations, distressed investments, bankruptcy proceedings, and insolvency-related litigation. Its matters can involve capital-structure negotiations, creditor remedies, special situations, cross-border insolvency, and disputes arising from financial distress.

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