Simpson Thacher & Bartlett LLP

Chairman, Executive Committee: Alden Millard

Administrative Partners: Alexandra Kaplan, Jonathan Karen

Number of partners worldwide: 315

Total numbers of lawyers worldwide: Approximately 2,000 lawyers

Simpson Thacher & Bartlett LLP is widely recognised as one of the pre-eminent law firms in the world. Headquartered in New York with offices in Beijing, Boston, Brussels, Hong Kong, Houston, London, Los Angeles, Luxembourg, Palo Alto, San Francisco, São Paulo, Tokyo and Washington, D.C., the Firm provides coordinated legal advice and transactional capability to its clients with a commitment to hard work, excellence and integrity. Clients around the world across industries turn to Simpson Thacher for advice on their largest and most complex transactions and their most challenging legal disputes. The firm offers straightforward, pragmatic advice that recognises the business needs of clients in light of prevailing commercial and legal realities. Simpson Thacher was selected as a “Practice Group of the Year” in four categories by Law360 in 2025. The firm has played a substantial role in many of the most noteworthy transactions and matters of the last decade.

M&A:Simpson Thacher is recognised globally for its role on behalf of parties on all sides of complex public and private M&A transactions, buyouts, stock and asset purchases, restructurings, spinoffs, joint ventures and contested transactions. Simpson Thacher also counsels clients on a broad range of corporate governance and control matters, including a dedicated shareholder engagement and activism defense group. Most recently, the firm has expanded its Insurance Transactional and Regulatory capabilities within the M&A practice to meet growing client demand across complex, highly regulated insurance deals. The team supports insurers, reinsurers, private equity sponsors, and other market participants, with integrated advice on transaction structuring, approvals and regulatory compliance.

Private Equity: Simpson Thacher is the world’s leading legal advisor in the private equity sector. Since the earliest days of private equity, clients have sought Simpson Thacher’s advice and the firm continues to be the firm of choice for many of the world’s most sophisticated private equity firms. Simpson Thacher’s scale and depth provide insight into the needs of every participant in private equity transactions: private equity sponsors, senior bank lenders, subordinated and bridge lenders, management and financial investors and underwriters. The firm has ranked among the top two law firms in both Global and U.S. Private Equity Buyouts by Mergermarket in each of the past five years and has been named a “Private Equity Practice Group of the Year” by Law360 for 15 consecutive years, including 2025.

Capital Markets: Simpson Thacher is a leader in capital markets transactions worldwide. The capital markets practice is prized for its reach and range — from Manhattan to Silicon Valley, from London to Hong Kong, São Paulo and beyond. With a uniquely balanced practice, representing both issuers and underwriters, the firm enjoys a premier standing in advising on IPOs and other equity capital markets transactions, as well as high yield debt, convertible debt and investment grade offerings. Clients rely on Simpson Thacher’s mastery of intricate deal structuring and experience across the full spectrum of products and industries. The firm has been named a “Capital Markets Practice Group of the Year” by Law360 seven times in the past ten years.

Banking & Credit: With a widely recognised top-level practice, Simpson Thacher counsels clients on their most sophisticated credit transactions. The firm has ranked #1 or #2 as legal counsel in each of the past 10 years based on overall financing volume by LSEG. Clients rely on Simpson Thacher to advise on an array of sophisticated credit transactions and financial instruments at all levels of the corporate capital structure. The firm’s practice spans the bank and syndicated lending market, including: leveraged finance, acquisition finance (including bridge financing), investment grade finance and project and energy finance.

Alternative Capital and Private Credit: Simpson Thacher offers non-bank lenders, institutional investors and borrowers highly tailored advice in structuring and executing innovative and complex alternative capital and private credit solutions worldwide. The firm’s extensive experience includes advising on transaction types across the financing spectrum and continues to grow as demand for alternative financing sources increases

Litigation: Clients seek the practice’s advice on high-stakes litigation, cross-border disputes, as well as government and internal investigations in the Americas, Europe and Asia. Clients benefit from the firm’s substantial bench of talent and the practice’s ability to leverage its broad experience and versatility to address their unique legal and business interests. The firm has been named Litigation Department of the Year for Insurance (2018, 2020, 2023, 2024 and 2025) and Finance (2017, 2019, and 2022) by New York Law Journal; Practice Group of The Year for Competition (2025); Insurance Practice Group of the Year (2023), Technology Practice Group of the Year (2019, 2020, 2022 and 2023), and Healthcare Practice Group of the Year (2023) by Law360; “Insurance Firm of the Year” (2013-2019, 2021,2022 2024, 2025), “Securities Firm of the Year” (2018-2020), and “Pro Bono Firm of the Year” (2020 and 2023) as well as honored with an Impact Case Award (2024) by Benchmark Litigation; an “International Elite” Firm for Litigation (2023-2024 and 2026), as well as an elite ranking in Anti-Corruption Investigations and Compliance (2023-2024 and 2026) by Latin Lawyer; Recognized in Chambers Crisis & Risk Management (2024 and 2025); Ranked in the “GIR 30” (2022, 2024) and the “GIR 100” (2015-2024) with the Global Investigations Review; Recognized in inaugural edition of GCR 100: Foreign Investment Control (2026) and awarded both “Merger Control Matter of the Year – Americas” (2023), “Litigation of the Year – Cartel Defense” (2025) and recognized as a “Global Elite” firm (2026) by Global Competition Review and “Cross-Border Dispute Resolution Deal of the Year” (2023) and recognized as a leading law firm in eight areas, including cross-border litigation (2025), by China Business Law Journal, among other accolades. The litigation practice includes:

• Anti-Discrimination Litigation and Advisory
• Antitrust and Trade Regulation
• Appellate
• Asia Litigation
• Asset Management Litigation
• Asset Management Regulatory and Enforcement
• Bankruptcy Litigation
• Complex Commercial Litigation
• Congressional Investigations
• ERISA Litigation
• False Advertising Litigation
• Government and Internal Investigations
• Insurance and Reinsurance
• Intellectual Property Litigation
• International Disputes and Arbitration
• International Regulatory and Compliance
• Mergers and Acquisitions Litigation
• Privacy and Cybersecurity
• Product Liability and Mass Tort
• Securities Litigation
• Whistleblower and False Claims Act

Investment Funds: Simpson Thacher has one of the world’s preeminent private funds practices. The global team advises sponsors on fund formations across a wide variety of investment criteria, including buyout, hedge, real estate, energy/infrastructure, credit, secondary, venture capital, fund-of-funds and other types of funds pursuing alternative investment strategies. The team provides comprehensive advice to many of the world’s best-known institutional alternative asset managers, as well as first-time funds and independent boutiques. The firm was named a “Fund Formation Practice Group of the Year” by Law360 for seven years consecutively, including 2025. The firm also advises on the full breadth of transactions at the fund and management company/GP level involving transfers of equity and related issuances/financings. The firm’s dynamic, long-standing Registered Funds Practice focuses on alternative asset managers seeking to access retail investor channels and is at the forefront of advising on the latest regulatory developments.

Real Estate: The firm’s global real estate practice spans all areas of the real estate industry, including sophisticated sales and acquisitions, restructurings, real estate development, joint ventures, co-investments and partnerships. The real estate finance team advises on sponsor-side real estate financings and counsels institutional lenders of all sizes and types on a variety of real state credit opportunities. Simpson Thacher’s synthesis of real estate experience with its leading corporate practices allows the firm to offer institutional real estate investors a single source of advice for their most complex real estate transactions and financing matters. The firm was named a “Real Estate Practice Group of the Year” by Law360 in eight of the past ten years.The firm’s leading digital infrastructure and real estate teams provide coordinated advice and unparalleled insight on all types of transactions involving data centers. The firm advised on the most data center deals by value and deal count during 2025 per Infralogic.

Restructuring: Simpson Thacher’s deep experience in some of the largest and most complex bankruptcies and out-of-court restructurings allows the firm to provide effective, strategic advice to clients across every part of the capital structure, from holders of senior secured debt, to unsecured and subordinated debt, to equity. The firm’s multidisciplinary Liability Management and Special Situations team executes complex and bespoke strategic credit, opportunistic equity and rescue finance transactions for a broad range of clients.

Energy & Infrastructure: Energy companies, lenders and investors turn to Simpson Thacher for cutting edge legal advice. The firm is at the forefront of developments in the energy and infrastructure industries, providing the unique perspective necessary to advise a diverse group of clients in all phases of their energy and infrastructure businesses. The practice’s clients work in electric power and transmission; energy transition, renewable and clean energy, including wind, solar and geothermal; electric, gas and water utilities; exploration and production, midstream, refining and petrochemicals, energy services and all segments of the infrastructure sector, including airports, ports, bridges, roads and digital infrastructure.

Financial Institutions: Simpson Thacher offers clients unique insight into issues relating to the financial services industry, gained through our extensive deal experience and deep knowledge of the complex and changing regulatory framework. The firm has represented clients in many of the largest and most complex bank M&A transactions of the past decades. Working closely with our market-leading technology practice, our team handles headline-making transactions and high-stakes disputes across the FinTech sector.

Healthcare: Major players across the healthcare industry – pharmaceutical and biotechnology companies, medical device and equipment manufacturers, health insurance companies, hospitals and other providers – turn to Simpson Thacher for the firm’s deep experience navigating the complexities of the industry. From structuring multibillion dollar mergers and obtaining antitrust approval to advising on disputes and investigations, our healthcare practice combines industry-specific experience with unrivaled excellence in the legal disciplines that impact healthcare companies.

Technology: Simpson Thacher is known as a global technology powerhouse that provides practical legal advice with an appreciation for the nuances and subtleties in this complex and fast-changing sector. The firm has led some of the most significant and high-profile tech matters in history, including acquisitions, financings, IPOs, shareholder disputes, cybersecurity issues, government investigations and other litigation matters. We provide advice tailored to each client’s key priorities, business model and operations, proprietary IP and the competitive landscape