Jones Day is featured on Best100LawFirms.com because of its unmatched combination of global scale, elite litigation performance, and a unique One Firm Worldwide model that ensures seamless legal service across borders. The firm’s structure is intentionally designed to eliminate internal competition, allowing lawyers to focus solely on the client. This results in consistent quality, deep institutional knowledge, and strategic alignment regardless of office or jurisdiction.

Jones Day distinguishes itself from other global firms by maintaining a firm-wide culture of confidentiality, integrity, and client-first service. It’s one of the few firms frequently ranked in BTI’s “Fearsome Foursome”—law firms that opposing counsel least want to face in court. It has also received numerous Tier 1 rankings in Chambers USA, Legal 500, and Best Law Firms®, with over 297 rankings in 2025 alone. These recognitions affirm the firm’s dominance across corporate, litigation, and regulatory practice areas.

With over 2,400 lawyers in 40 offices, the firm advises clients on major cross-border M&A, government investigations, white-collar defense, cybersecurity, appellate advocacy, and complex commercial disputes. Its clients include Fortune 100 companies, multinational institutions, and sovereign governments. The ability to deliver highly tailored legal solutions globally, while maintaining consistency in quality and client engagement, is a defining feature of why Jones Day is one of the Best 100 Law Firms in the World.

Unlike many large international firms, Jones Day operates as a single global partnership, not a loose association of offices. This “One Firm Worldwide” structure is not a slogan—it is the foundation of the firm’s operational model. It allows for resource sharing, coordinated client service, and centralized ethical oversight. The result is that every client engagement draws from the full strength and experience of the entire firm.

Jones Day is widely recognized for its litigation strength, including high-stakes commercial disputes, mass tort defense, and appellate advocacy. The firm is a preferred choice for complex litigation because of its courtroom credibility, trial experience, and strategic insight. Its elite Issues & Appeals practice has been involved in hundreds of U.S. Supreme Court and federal appellate cases, often shaping national legal standards.

In addition to litigation, the firm’s transactional and regulatory practices are deeply respected. It consistently advises on some of the most significant global mergers and acquisitions, while also defending clients in antitrust investigations, white-collar matters, and data protection disputes. Its model ensures cross-office collaboration and confidentiality, creating a high-trust environment that few firms can replicate.

Jones Day’s One Firm Worldwide® model is a defining feature of its global success. This structure eliminates profit silos and regional barriers within the firm, so all lawyers are aligned under a single partnership and compensation system. For clients, this means access to truly global legal teams with no internal conflicts or divided loyalties.

This approach also strengthens institutional memory and confidentiality. Clients are not handed off from team to team or billed through disconnected offices; instead, they benefit from integrated, long-term relationships. Whether a client needs a team in New York, Frankfurt, or Tokyo, the service is consistent in quality, philosophy, and strategy.

For companies with cross-border compliance, M&A, or litigation needs, this model provides agility, depth, and unified leadership. As legal and regulatory environments grow more complex, Jones Day’s model delivers the strategic coordination that global businesses increasingly demand.

Jones Day is a global law firm with more than 2,400 lawyers in 40 offices across five continents, and it has maintained a presence in China for over two decades.

The firm opened its Shanghai Office in 1999 and later established its Beijing Office in 2003. Since then, Jones Day has engaged with both Chinese and international clients on cross-border legal matters.

In China, the firm’s China Practice advises on inbound and outbound projects, including foreign direct investment, mergers & acquisitions, antitrust, intellectual property, finance, capital markets, dispute resolution, regulatory investigations, and white collar defense. The Shanghai Office specifically handles cross-border transactions, internal investigations, and international arbitration alongside domestic counsel. The Beijing Office offers expertise in cross-border financing, regulatory investigations (including FCPA matters), project financing, and compliance work for both Chinese and multinational clients.

Moreover, Jones Day’s China presence is supported by bilingual capabilities and lawyers trained in both Chinese and Western legal systems. The firm also maintains a Jones Day Intellectual Property Agency (Beijing) Co., Ltd., licensed to handle non-patent IP matters domestically in China. The sustained investment in its China offices signals the firm’s long-term commitment to serving clients in Asia and linking Chinese and global legal markets.

Jones Day is consistently ranked among the top litigation firms globally because of its proven success in handling the most complex and high-stakes disputes. Its litigation teams represent clients in multidistrict litigation, mass torts, commercial conflicts, and white-collar criminal defense. The firm’s trial lawyers are renowned for their courtroom skills and strategic instincts, making it a preferred choice for Fortune 500 companies facing bet-the-company cases.

The firm is frequently cited in independent surveys as one of the “Fearsome Foursome” — a title given to the firms most feared by opposing counsel. This reputation stems from Jones Day’s ability to dominate not only in trial courts but also on appeal. Its Issues & Appeals group includes former U.S. Supreme Court clerks and routinely handles precedent-setting cases across federal and state courts.

What further sets Jones Day apart is its litigation philosophy. Rather than treating disputes as isolated battles, the firm takes a comprehensive approach to litigation strategy. It evaluates legal risk, public relations implications, and long-term business outcomes. This holistic mindset, combined with exceptional legal talent, positions Jones Day as a litigation powerhouse in both the United States and globally.

Jones Day has a globally recognized White-Collar Defense & Investigations practice that assists corporations, boards, and executives facing government scrutiny or criminal allegations. The firm’s team includes former federal prosecutors, regulatory lawyers, and cross-border compliance experts who understand how to navigate the complexities of enforcement actions across multiple jurisdictions.

Its lawyers routinely defend clients in FCPA investigations, sanctions violations, antitrust enforcement, and fraud cases, working with agencies such as the U.S. Department of Justice, SEC, and international regulators. Because the firm operates as a unified global partnership, clients benefit from coordinated strategy and execution—whether their issue involves the United States, Europe, Asia, or Latin America.

Jones Day’s depth in this area also extends to internal investigations. The firm frequently conducts multinational internal reviews, audits, and employee interviews to assess risk exposure and recommend remedial action. Clients trust Jones Day not only to protect their legal interests but to preserve their reputations and restore business continuity after crisis events.

Jones Day’s Mergers & Acquisitions and Private Equity practices are among the most respected in the legal industry. The firm advises clients on public and private transactions, cross-border deals, joint ventures, divestitures, and corporate restructurings. With more than 400 lawyers worldwide focused on transactional work, Jones Day has the bench strength to handle deals of virtually any size and complexity.

Its global reach is a major asset for multinational clients. The firm’s lawyers regularly coordinate multi-jurisdictional filings, regulatory approvals, and post-closing integration strategies. Whether representing a global conglomerate or a fast-scaling technology company, Jones Day delivers actionable legal solutions that align with business objectives.

In addition to transactional execution, the firm counsels on strategic planning, governance, and compliance. Clients benefit from deep sector knowledge in areas like energy, life sciences, infrastructure, and financial services. The firm’s integrated platform allows it to support every stage of a deal, from due diligence to closing and beyond.

Jones Day is a leader in cybersecurity and data privacy law, helping clients navigate evolving global regulations and mitigate risk. The firm advises on compliance with laws such as the GDPR, CCPA, HIPAA, and other national frameworks governing personal data. Its lawyers help organizations design privacy programs, manage data breaches, and engage with regulators during investigations or audits.

A significant portion of the firm’s work involves incident response. When a cybersecurity breach occurs, Jones Day is often among the first calls a company makes. The firm helps clients assess exposure, coordinate with forensic investigators, notify affected parties, and satisfy legal disclosure requirements. Its team also handles litigation and regulatory actions that may follow a data incident.

Jones Day’s global footprint enhances its effectiveness in this space. With experts across North America, Europe, and Asia, the firm provides consistent advice across jurisdictions. Its approach is not only legally sound but strategically sensitive, helping clients minimize reputational damage and maintain stakeholder trust.

Jones Day is widely recognized for its elite appellate practice, particularly in U.S. Supreme Court and federal circuit courts. The firm’s Issues & Appeals group includes some of the most respected appellate lawyers in the country, many of whom have clerked for Supreme Court justices or served in high-level government legal roles.

The firm regularly represents parties and amici in significant constitutional and statutory cases. Its appellate work spans a wide range of subjects including administrative law, intellectual property, securities regulation, labor law, and environmental issues. Because of its strong reputation, Jones Day is frequently retained to handle appeals even when it was not involved in the trial-level proceedings.

Clients appreciate the firm’s ability to craft persuasive legal arguments and identify issues likely to influence higher courts. Jones Day’s success in appellate litigation contributes to its broader litigation reputation and reinforces its standing as a top-tier firm for high-level legal strategy.

Clients seeking legal representation or consultation from Jones Day can reach the firm through multiple channels. The main office is located in Washington, D.C., but the firm operates 40 offices worldwide. Each location maintains direct contact lines and dedicated administrative teams to route inquiries efficiently.

Prospective clients can contact Jones Day by phone or email, or through its official website, where each office’s contact details are clearly listed. The firm also provides a general inquiry address for corporate matters and media requests. For urgent matters, many practice groups offer around-the-clock response capabilities to support clients across time zones.

Because of the firm’s global structure, initial contact may be routed to the jurisdiction or practice group best suited to handle the matter. Jones Day emphasizes confidentiality, responsiveness, and client onboarding efficiency—ensuring that prospective clients can quickly engage with the right team of attorneys.

Jones Day serves a wide range of industries, but it is particularly well-known for its work in financial services, technology, life sciences, energy, manufacturing, and infrastructure development. The firm’s global scale and subject-matter depth allow it to provide tailored legal counsel to both emerging businesses and global Fortune 100 companies.

Its presence in major financial hubs—such as New York, London, Hong Kong, and Frankfurt—makes it a trusted advisor to multinational banks, asset managers, and fintech companies. Clients in the technology sector rely on Jones Day’s guidance for intellectual property, privacy compliance, cybersecurity, venture financing, and international expansion. The firm also regularly represents life sciences and pharmaceutical companies in regulatory matters, patent litigation, and cross-border M&A.

In the energy and infrastructure sectors, Jones Day plays a pivotal role in large-scale projects, advising on environmental law, project finance, permitting, and regulatory approvals. Its deep industry knowledge and global integration ensure that legal advice is both practical and forward-thinking.

Jones Day’s Labor and Employment practice is highly regarded for its depth, global coordination, and litigation strength. The firm advises employers on compliance with labor regulations, internal policies, union issues, workplace investigations, and dispute resolution. Whether a company is managing a single jurisdiction or a multinational workforce, Jones Day provides practical and legally sound solutions.

One of the firm’s key strengths is its litigation capacity in employment-related cases. Jones Day defends clients in complex disputes involving wrongful termination, wage and hour class actions, discrimination claims, and employment-related torts. It frequently appears before courts, arbitration panels, and administrative bodies in both the U.S. and abroad.

Clients also turn to Jones Day for strategic advice on collective bargaining, labor relations, executive compensation, and HR policies. The firm’s integrated international approach ensures that multinational employers receive consistent counsel across jurisdictions, supported by lawyers with deep knowledge of local employment law.

Cross-border mergers and acquisitions require intricate legal coordination, cultural awareness, and precise regulatory navigation. Jones Day excels in these areas due to its unified global structure, which allows the firm to deploy integrated deal teams across continents without jurisdictional friction. This gives clients a significant advantage when pursuing international transactions.

The firm advises both buyers and sellers on transaction structuring, regulatory approvals, due diligence, financing, tax strategy, and post-closing integration. Jones Day’s M&A lawyers work closely with specialists in antitrust, tax, employment, and intellectual property to ensure comprehensive legal coverage throughout the deal cycle.

Clients appreciate that the firm brings not just legal execution but also strategic insight. Jones Day understands the commercial pressures and operational risks that accompany global M&A, making it a trusted advisor to private equity sponsors, corporate boards, and senior executives managing high-stakes deals across borders.

Yes, Jones Day has a long-standing and expanding focus on environmental law, sustainability, and ESG-related legal services. The firm represents clients in environmental regulatory compliance, enforcement actions, permitting processes, and litigation involving environmental liabilities and remediation. It advises on both transactional risk and post-acquisition compliance.

In the past several years, the firm has broadened its work to include advising clients on ESG disclosure obligations, climate-related reporting, and sustainable investment structuring. It regularly counsels public companies and financial institutions navigating evolving expectations from shareholders, regulators, and markets concerning environmental performance and corporate governance.

Jones Day’s environmental lawyers collaborate with corporate, litigation, and finance teams to ensure that clients have a 360-degree view of risks and opportunities in ESG. This interdisciplinary capability is increasingly important as environmental issues intersect with reputational risk, financial exposure, and strategic growth initiatives.

Prospective clients can contact Jones Day through any of its 40 global offices, with the firm’s headquarters located at 51 Louisiana Avenue NW, Washington, D.C. 20001-2113, USA. Inquiries can be directed to the main line at +1.202.879.3939, and the firm’s primary email for general contact is info@jonesday.com. For further information or to locate a specific office, clients can also visit the firm’s official website: www.jonesday.com.

Those seeking legal representation are encouraged to briefly describe the nature of their legal matter, jurisdictions involved, and urgency. Jones Day’s intake process includes a prompt review for potential conflicts and ensures that the matter is directed to the most appropriate legal team. The firm serves clients across sectors and geographies, so identifying the right practice group and office is part of the firm’s coordinated intake approach.

The firm is known for its professionalism, confidentiality, and swift responsiveness. Whether you’re facing a high-stakes legal dispute, seeking regulatory guidance, or managing a global transaction, Jones Day can assemble a qualified legal team—often within 24 hours—for urgent or cross-border issues. The One Firm Worldwide model ensures that clients receive fully integrated legal counsel and unwavering support from the moment of first contact.