Sidley is an elite global law firm. Harnessing 158 years of legal heritage, we provide strong representation on behalf of clients in more than 70 countries. Our lawyers apply a Built to WinSM client service model to their legal strategies, ensuring the best possible outcomes in complex transactional, restructuring, regulatory, and litigation matters. With 21 offices strategically situated in key commercial and financial hubs across the world, our perspective and our reach are truly global. Our 2,300 lawyers, fluent in more than 80 languages, possess the cultural awareness and cross-border legal acumen needed to bring clarity to a dynamic business landscape.
Follow Sidley on Twitter @SidleyLaw.
Appellate: Sidley is widely recognized as one of the premier appellate firms in the country, and as a trailblazer — regularly addressing intricate, precedent-setting issues in federal and state law in the Supreme Court, the federal courts of appeals, as well as state appellate and supreme courts across the nation. Since the inception of the practice in 1985, the team, including more than 20 former Supreme Court clerks, has briefed over 220 cases on the merits and argued more than 150 cases before the Court.
Bankruptcy: Sidley’s global Restructuring group is regularly involved in the largest restructurings throughout the world. The team represents companies facing in-court or out-of-court restructurings, official and ad hoc committees of creditors, agent lenders, and participants in distressed M&A processes. Sidley prides itself on the group’s ability to use innovative, bespoke approaches to obtain the best results in complex situations.
Commercial: Clients repeatedly turn to Sidley’s Commercial Litigation team when their most important disputes must be tried. Sidley’s track record of successes is unparalleled in high-stakes, mission-critical cases against well-regarded opponents, no matter the forum. The team’s full-service litigation capabilities are relied upon by leading global companies with household names.
Competition/Antitrust: As a part of the firm’s global antitrust offering, Sidley has a strong and well-respected litigation practice. Sidley lawyers represent clients in their most complex cases, including matters involving antitrust enforcement, merger clearances, claims of collusion, and other alleged antitrust violations. The team has represented domestic and international corporations, trade associations, government entities, professional societies, and individuals in the full range of civil and criminal trials.
Insurance: Sidley’s Insurance Disputes practice advises on significant insurance litigation nationwide across a variety of areas, including regulatory compliance, insurance class actions, reinsurance disputes, ERISA litigation, general commercial litigation, securities and shareholder litigation, and Supreme Court and appellate courts, among other areas.
Intellectual Property: Sidley boasts one of the most distinguished and highly regarded Intellectual Property litigation practices in the U.S., with approximately 80 lawyers and a deep bench of trial lawyers. Handling matters for innovation-driven clients ranging from global Fortune 500 companies to groundbreaking startups, the team develops winning strategies for high-stakes IP litigation involving patents, trade secret and unfair competition, false advertising, copyright infringement, and trademarks.
International Arbitration: Sidley’s Global Arbitration, Trade and Advocacy practice exemplifies a superior depth of knowledge of the law, regulatory challenges, and culture of the jurisdictions in which the team practices. Operating from the U.S., Europe, and Asia, the team works as a tightly integrated team of practitioners with different cultural and legal backgrounds and broad language capabilities.
Labor and Employment: Sidley is at the forefront of representing employers in major high-profile class and collective action litigation against many of the biggest and most aggressive plaintiffs’ firms in the country. The team is known for winning bet-the-company cases and deftly handling high-value discrimination, harassment, and retaliation claims, executive disputes, whistle-blower claims, restrictive covenant and trade secret litigation, and investigations involving matters of the utmost importance to companies.
Product Liability and Recall: Sidley’s Product Liability and Mass Torts practice has played key roles in many of the most significant product liability litigations. The team has decades of experience handling claims associated with products, the facilities that manufacture them, and the companies that sell them. We defend clients in state and federal courts and are typically lead counsel in multidistrict litigations and state coordinated proceedings.
Securities: Sidley’s Securities and Shareholder Litigation team stands out for the strength of its work, winning complex securities matters at the trial level and on appeal across a variety of sectors. The team’s deep bench and extensive experience allows Sidley to represent a wide range of clients. This includes major corporations and private companies, boards of directors and board committees, senior executives, financial advisers, investment banks, and auditors.
White Collar Crime: Sidley lawyers have handled investigations in more than 130 countries, collaborating seamlessly across borders and practice groups to offer a cohesive approach to white collar crime and corporate investigations matters. The firm can mobilize teams quickly to swiftly deploy the critical legal support needed to manage sensitive, high-profile investigations and litigation.
Updated Sep 2024
Polsinelli is an Am Law 100 firm with more than 1,200 attorneys in over 25 offices nationwide. Recognized by legal research firm BTI Consulting as one of the top firms for excellent client service and client relationships, Polsinelli attorneys provide value through practical legal counsel infused with business insight and focus on health care, real estate, finance, technology, private equity and corporate transactions.
Updated Sep 2025
Saul Ewing’s Litigation Department features approximately 200 attorneys across 18 offices, including our newest locations in Los Angeles and Irvine, California. We handle a wide range of matters including complex business and commercial disputes, bet-the-company legal proceedings, and high-profile cases in state and federal courts and Alternative Dispute Resolution (ADR) forums across the nation. We represent local, regional, national and international organizations as well as individuals across a diverse array of industries, including but not limited to higher education, energy and environmental, manufacturing, financial and other professional services, construction, insurance, health care, food/beverage/agribusiness, life sciences, cannabis, sports/entertainment and real estate.
Our deep bench of litigators work to protect the interests of our clients and mitigate the impact of litigation on business operations in all phases of litigation, including investigation, pleadings, motions, fact and expert discovery and depositions, hearings, trials, appeals, settlement negotiations, and enforcement of judgments. Among our ranks are seasoned trial lawyers and former government officials and prosecutors, whose insight and strategic judgment are a valuable resource to our entire team.
Our core areas of focus include:
Consumer Financial Services Litigation
Employee Benefits & ERISA Litigation
Environmental Civil Litigation
Insurance Litigation & Arbitration
Intellectual Property Litigation
Title Claims & Coverage Litigation
White Collar & Government Enforcement
Within these core areas of focus, we have extensive experience representing clients in pursuing and defending claims of breach of contract, tortious interference with contracts and business relationships, fraud and misrepresentation, lender liability, property liability, negligence, unfair competition, unfair trade practices, antitrust violations, conspiracy, RICO violations, breach of fiduciary duty, defamation, trade disparagement, false advertising, malicious prosecution, theft of trade secrets, intellectual property infringement, trespass, conversion, trust and estate controversies, partnership and corporate dissolutions and claims arising in shareholder and partner derivative actions, among others.
Our Approach: We start by tailoring a strategy to meet our clients’ objectives and risk management priorities, whether those focus on litigation avoidance, early settlement, resolution through dispositive motions, or pursuing a case through adjudication at trial. Using early case assessment tools, we develop a detailed roadmap for each case. We recognize that litigation can be expensive, distracting and time-consuming, and that our clients need cost predictability. Depending on client needs, we are able to create customized litigation plans and budgets at the matter, phase and/or task levels. Our project management team carefully monitors work volume and billing metrics to help ensure that our services align with project scope and needs, and to maximize proactive communication with clients about changes in cost, scope and/or strategy.
eDiscovery: For cases requiring electronic discovery, we rely on our in-house Litigation Support Services (LSS) team, which is driven by members with sophisticated technical knowledge and credentialing by the Association of Certified E-Discovery Specialists. With extensive experience managing complex eDiscovery collection, processing, review and production, our LSS team leverages advanced analytics and technology-assisted review to quickly identify and locate relevant information, process and analyze data efficiently, and help reduce overall litigation costs.
Updated Sep 2025
The Litigation & Trial Department leverages a global platform to provide unmatched legal services. With over 1000 top-tier litigators, we bring experience, insight, and determination to every client. Our pragmatic approach ensures favorable results through effective collaboration with local counsel, co-counsel, and government regulators. We develop aggressive and creative litigation strategies, often resolving matters before trial. When necessary, clients can rely on our ability to win at trial, arbitration, regulatory proceedings, and on appeal.
Antitrust & Competition: Our distinguished team comprises highly qualified lawyers adept in both local and international antitrust and competition matters. We provide expert counsel on merger clearance, cartel investigations, competition-related litigation, IP antitrust issues, and compliance training. Our team is committed to delivering exceptional client service in cases involving monopolization challenges, rapid-response merger litigation, and innovative, high-stakes theories.
Complex Commercial Litigation: Our team combines trial-ready capabilities and business fluency to tackle complex challenges. We represent public and private companies, financial institutions, private equity firms, governmental entities, and high net worth individuals in commercial disputes. Over the past decade, we have tried or arbitrated hundreds of cases to verdict with an extraordinary success rate in US federal and state courts and arbitration panels. Our team includes more than 350 former federal law clerks and more than 35 former federal prosecutors, providing invaluable institutional knowledge and courtroom experience.
Connectivity, Privacy & Information: Our firm brings together a global team of lawyers addressing the critical legal issues arising from digital technology and services, in disciplines including communications, data privacy and cybersecurity, internet law, and digital copyright. Our team handles high-profile litigation, regulatory investigations and counseling, internal investigations, and technology transactions for clients in multiple industry sectors. We handle matters requiring extensive experience in particular areas of the law governing digital commerce, as well as matters that cut across legal silos to deliver exceptional results for our clients.
Environmental Litigation: We represent clients in administrative and regulatory proceedings, enforcement, litigation, transactions, and legislative matters. We help clients navigate complex agency rulemakings, secure approvals for energy and infrastructure projects, and resolve environmental investigations and compliance issues. Our wide-ranging expertise and unique government experience set us apart, delivering successful outcomes in groundbreaking matters worldwide.
Intellectual Property Litigation: Our litigators have unparalleled experience in IP strategy and disputes, including patent, trademark, copyright, trade dress, and trade secrets. We are actively involved in precedent-setting multijurisdictional litigation on a global scale, including extensive experience across numerous U.S. district courts, as well as proceedings before the Federal Circuit, ITC, and PTAB. Our team is comprised of technically trained lawyers, technical analysts, and dedicated IP paralegals, adept at managing cases in diverse industries across life sciences, technology, and more, including semiconductors, software, biotechnology, pharmaceuticals, medical devices, electric motors, engines, emerging technologies, cloud computing and networking, packaging, building products, and banking technologies, among others.
Securities Litigation & Professional Liability: Our Securities and M&A Litigation team is renowned for its exceptional expertise in handling complex securities class actions, shareholder derivative litigation, and litigation arising from M&A transactions. We have defended more federal securities lawsuits than any other firm in the US in the last five years, and our presence in the Delaware courts is unparalleled among our peer firms (Lex Machina). Recognized as the Securities Group of the Year by Law360 in four of the past five years, and consistently ranked #1 by Chambers and Legal500, our team comprises leading lawyers, former federal prosecutors, and senior SEC staff. We are the go-to firm for Fortune 500 companies, major financial institutions, and the Big Four accounting firms, securing high-profile, precedent-setting victories. We excel at resolving matters before trial through dispositive motions or settlements, and have a proven track record in trial success.
Supreme Court & Appellate: Led by a former U.S. Solicitor General, our Supreme Court and Appellate Practice boasts an outstanding record before the U.S. Supreme Court and other appellate courts. Over the past two decades, our advocates have argued more than 100 cases before the Supreme Court, representing Fortune 100 corporations, state governments, leading educational institutions, and individuals. Recently, we secured certiorari in nearly a dozen cases and have prepared briefs for hundreds of cases in both federal and state appellate courts.
White Collar Defense & Investigations: Our firm is at the forefront of advising on white collar and enforcement matters, offering unparalleled expertise in high-profile, sensitive cases globally. We leverage deep experience with regulators and prosecutors to guide clients through inquiries and investigations, skillfully defending against enforcement actions and prosecutions. Our track record includes avoiding charges and achieving full acquittals, often defeating government prosecutions before trial. We represent clients in actions by the SEC, DOJ, PCAOB, FINRA, CFTC, state attorneys general, Congress, and other global regulators. Our team excels in export controls, economic sanctions, and national security-related work, including CFIUS reviews and FOCI mitigation. Our defense lawyers include former senior prosecutors and government officials from top agencies.
Updated Oct 2025