Firm Profile

Simpson Thacher & Bartlett LLP

Global Guide 2025

Ranked departments
Ranked lawyers
Global

Simpson Thacher & Bartlett LLP

Simpson Thacher & Bartlett LLP

Contact number

+1 212 455 2000

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About

Provided by Simpson Thacher & Bartlett LLP
Global

Chairman, Executive Committee: Alden Millard

Administrative Partners: Elizabeth Cooper, Jonathan Karen

Number of partners worldwide: 281

Number of additional lawyers worldwide: Over 1,000

Firm Overview: Simpson Thacher & Bartlett LLP is widely recognised as one of the pre-eminent law firms in the world. The firm devotes to its clients the legal talent and skill of approximately 1,500 lawyers 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. The firm has played a substantial role in many of the most noteworthy transactions and matters of the last decade. Simpson Thacher was selected as a “Practice Group of the Year” in four categories by Law360in 2024.


Areas of Practice:


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 proxy contests and challenges by activist investors.The firm was named an “M&A Practice Group of the Year” by Law360 in three of the past five years, including 2024.

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 14 consecutive years, including 2024.

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” byLaw360in eight of 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 and 2024) and Finance (2017, 2019, and 2022) byNew York Law Journal; 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) byLaw360; “Insurance Firm of the Year” (2013-2019, 2021,2022 and 2024), “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) byBenchmark Litigation; an “International Elite” Firm for Litigation (2023-2024), as well as an elite ranking in Anti-Corruption Investigations and Compliance (2023-2024) byLatin Lawyer; ranked in the “GIR 30” (2022, 2024) and the “GIR 100” (2015-2024) with the Global Investigations Review; and awarded both “Merger Control Matter of the Year – Americas” (2023) byGlobal Competition Review andCross-Border Dispute Resolution Deal of the Year” (2023)byChina Business Law Journal, among other accolades.

The litigation practice includes:

■ Anti-Discrimination and DEI Advisory

■ Antitrust and Trade Regulation

■ Appellate

■ Asia Litigation

■ Bankruptcy Litigation

■ Complex Commercial Litigation

■ ERISA Litigation

■ False Advertising Litigation

■ Funds Regulatory and Investigations

■ 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 six years consecutively, including 2024. 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, including 2024.


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. The firm’s leading digital infrastructure and real estate teams provide coordinated advice and unparalleled insight on all types of transactions involving data centers.


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.The firm was named “Corporate Practice of the Year: Technology and Telecom” at the 2024 American Lawyer Industry Awards.

Ranked Offices

Provided by Simpson Thacher & Bartlett LLP

USA - Head office
Belgium
  • Brussels
    Square de Meeus 1, Floor 7, Brussels, Brussels Capital Region, Belgium, B-1000
    View ranked office
Brazil
  • São Paulo - SP
    Av. Presidente Juscelino Kubitschek, 1455, 12th Floor, Suite 121, São Paulo - SP, Sao Paulo, Brazil, 04543-011
    View ranked office
China
  • Beijing
    3919 China World Tower, 1 Jian Guo Men Wai Avenue, Beijing, Beijing, China, 100004
    View ranked office
    Hong Kong
    ICBC Tower, 35th Floor, 3 Garden Road, Central, Hong Kong, Hong Kong, China
    View ranked office
Japan
  • Tokyo
    Ark Hills Sengokuyama Mori Tower, 41st Floor, 9-10, Roppongi 1-Chome, Minato-Ku, Tokyo, Tokyo-to, Japan, 106-0032
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UK
  • London
    CityPoint, One Ropemaker Street, London, Greater London, UK, EC2Y 9HU
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USA
  • Boston
    855 Boylston Street 9th Floor , Boston, Massachusetts, USA, 02116
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    Houston
    600 Travis Street, Suite 5400, Houston, Texas, USA, TX 77002
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    Los Angeles
    1999 Avenue of the Stars, 29th Floor, Los Angeles, California, USA, CA 90067
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    Palo Alto
    2475 Hanover Street, Palo Alto, California, USA, CA 94304
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    Washington, DC
    900 G Street, NW, Washington, DC, District of Columbia, USA, 20001
    View ranked office

Contributions

Latest contributions provided by Simpson Thacher & Bartlett LLP

Global Practice Guide
Mai Kristofferson
David Azcue
Authored by
Mai Kristofferson, David Azcue
Article • Sep 2024
Global Practice Guide
Keiko Shimizu
Koichiro Yoshimura
Mai Kristofferson
David Azcue
Authored by
Keiko Shimizu, Koichiro Yoshimura, Mai Kristofferson, David Azcue
Article • Sep 2024

Simpson Thacher & Bartlett LLP rankings

Global Guide 2025
Filter by
Band
Asia-Pacific Region
Capital Markets: Debt
1 Department
Department
Capital Markets: Debt
3
Capital Markets: Debt
3
Band 3
Capital Markets: Equity
1 Department
Department
Capital Markets: Equity
2
Capital Markets: Equity
2
Band 2
Corporate/M&A
1 Department
Department
Corporate/M&A
3
Corporate/M&A
3
Band 3
Corporate/M&A: Private Equity
1 Department
Department
Corporate/M&A: Private Equity
2
Corporate/M&A: Private Equity
2
Band 2
Investment Funds: Private Equity
1 Department
Department
Investment Funds: Private Equity
1
Investment Funds: Private Equity
1
Band 1
Belgium
Banking & Finance
1 Ranked Lawyer
Lawyers
Hadrien Servais
3
Hadrien Servais
3
Band 3
Brazil
Capital Markets (International Firms)
1 Department
2 Ranked Lawyers
Department
Capital Markets (International Firms)
1
Capital Markets (International Firms)
1
Band 1
Lawyers
Grenfel S Calheiros
1
Grenfel S Calheiros
1
Band 1
Paulo Fernando de Menezes Cardoso
3
Paulo Fernando de Menezes Cardoso
3
Band 3
Corporate/M&A (International Firms)
1 Department
3 Ranked Lawyers
Department
Corporate/M&A (International Firms)
2
Corporate/M&A (International Firms)
2
Band 2
Lawyers
S Todd Crider
2
S Todd Crider
2
Band 2
Grenfel S Calheiros
3
Grenfel S Calheiros
3
Band 3
Paulo Fernando de Menezes Cardoso
3
Paulo Fernando de Menezes Cardoso
3
Band 3
China
Banking & Finance: Leveraged & Acquisition Finance (International Firms)
1 Department
1 Ranked Lawyer
Department
Banking & Finance: Leveraged & Acquisition Finance (International Firms)
2
Banking & Finance: Leveraged & Acquisition Finance (International Firms)
2
Band 2
Lawyers
Makiko Harunari
2
Makiko Harunari
2
Band 2
Capital Markets (International Firms)
1 Department
1 Ranked Lawyer
Department
Capital Markets (International Firms) (South Korea)
Capital Markets (International Firms) (South Korea)
Spotlight
Lawyers
Jin-Hyuk Park
F
Jin-Hyuk Park
F
Foreign expert for South Korea
Capital Markets: Equity (International Firms)
1 Department
2 Ranked Lawyers
Department
Capital Markets: Equity (International Firms)
3
Capital Markets: Equity (International Firms)
3
Band 3
Lawyers
Christopher Wong
2
Christopher Wong
2
Band 2
Yi Gao
5
Yi Gao
5
Band 5
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