Simpson Thacher & Bartlett LLP
Simpson Thacher & Bartlett LLP's Overview
Simpson Thacher & Bartlett LLP is a prominent international law firm, renowned for providing sophisticated legal advice and services to a diverse client base worldwide. With a history spanning over 140 years, the firm is recognized for its expertise in corporate law, litigation, and various specialized practice areas, including mergers and acquisitions, private equity, capital markets, and real estate. They are known for handling complex, high-stakes matters for leading corporations, financial institutions, and private equity firms.
Where is Simpson Thacher & Bartlett LLP's Headquarters?
HQ Function
Serves as the firm's primary administrative and operational hub, coordinating global operations and housing a significant number of its legal professionals and support staff across all major practice areas.
Notable Features:
Located in a prominent Midtown Manhattan skyscraper, offering modern facilities, state-of-the-art conference rooms, and convenient access to clients and financial centers.
Work Culture:
Known for a demanding, high-performance yet collaborative and collegial environment. Emphasizes excellence, teamwork, mentorship, and a strong commitment to client service.
HQ Significance:
The New York headquarters is central to the firm's identity and history, reflecting its deep roots in the U.S. financial and legal capital. It's a key center for its market-leading transactional and litigation practices.
Values Reflected in HQ: The prestigious Midtown Manhattan location reflects the firm's commitment to excellence, its focus on high-stakes corporate and financial law, and its status as a leading global legal services provider.
Location:
Simpson Thacher & Bartlett LLP supports a wide range of functions globally, leveraging its international network of offices. Key functions include cross-border mergers and acquisitions, international capital markets transactions, global private equity fund formation and investments, complex international litigation and arbitration, banking and finance, real estate, and regulatory advice across multiple jurisdictions. Their integrated global teams collaborate to provide seamless legal services to multinational corporations, financial institutions, governments and sovereign wealth funds.
Street Address:
425 Lexington Avenue
City:
New York
State/Province:
NY
Country:
USA
Simpson Thacher & Bartlett LLP's Global Presence
London, United Kingdom
Address: CityPoint, One Ropemaker Street, London EC2Y 9HU, UK
Serves as a critical center for European operations, connecting clients with global markets and leveraging London's status as a major international finance and legal center.
Hong Kong, SAR
Address: ICBC Tower, 35th Floor, 3 Garden Road, Central, Hong Kong
Facilitates investment and business activities into and out of Greater China and Southeast Asia, catering to multinational corporations and regional funds.
Palo Alto, California, USA
Address: 2475 Hanover Street, Palo Alto, CA 94304, USA
Serves the dynamic technology and innovation ecosystem of the West Coast, providing specialized legal expertise to high-growth companies and investors in the tech sector.
Washington, D.C., USA
Address: 900 G Street, NW, Washington, D.C. 20001, USA
Provides critical access to U.S. regulatory bodies and policymakers, advising clients on navigating the complex federal legal and regulatory landscape.
Buying Intent Signals for Simpson Thacher & Bartlett LLP
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Executive Team of Simpson Thacher & Bartlett LLP
As of April 2025, Simpson Thacher & Bartlett LLP' leadership includes:
Investors of Simpson Thacher & Bartlett LLP
Simpson Thacher & Bartlett LLP has been backed by several prominent investors over the years, including:
Executive New Hires/Exits in the Last 12 Months
Simpson Thacher & Bartlett LLP has seen key leadership appointments in the past year, particularly in strengthening its practice group leadership. This includes strategic hires and internal promotions to lead vital areas of the firm. The firm also regularly elects new partners, strengthening its overall leadership talent.
New Appointments:
Technology (Tech Stack) used by Simpson Thacher & Bartlett LLP
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Simpson Thacher & Bartlett LLP Email Formats and Examples
Simpson Thacher & Bartlett LLP primarily utilizes a common corporate email format. The most frequently observed and confirmed structure is the first initial of the employee's first name followed by their full last name.
flast@stblaw.com
Format
amillard@stblaw.com (example for Alden Millard)
Example
90%
Success rate
News and media
stblaw.com (Simpson Thacher Press Release) • May 20, 2024
Simpson Thacher Represents KKR in Connection with the Recommended Cash Acquisition of Perpetual Limited’s Corporate Trust and Wealth Management Businesses
Simpson Thacher announced its representation of KKR in its agreement to acquire the corporate trust and wealth management businesses of Perpetual Limited for A$2.175 billion. The transaction showcases the firm's M&A capabilities in complex, cross-border deals....more
stblaw.com (Simpson Thacher Press Release) • April 29, 2024
Simpson Thacher Represents Silver Lake in its Strategic Growth Investment in Integrity Marketing Group
The Firm advised Silver Lake, a global leader in technology investing, on its significant strategic growth investment in Integrity Marketing Group, a leading distributor of life and health insurance and provider of wealth management and retirement planning solutions....more
stblaw.com (Simpson Thacher Press Release) • May 1, 2024
Simpson Thacher Represents Initial Purchasers in $1.2 Billion Senior Notes Offering by Hilton
Simpson Thacher advised the initial purchasers in a significant high-yield debt offering by Hilton Domestic Operating Company Inc., a subsidiary of Hilton Worldwide Holdings Inc., showcasing its strength in capital markets....more
stblaw.com (Simpson Thacher Press Release) • January 1, 2024
Simpson Thacher Elects 20 New Partners
Simpson Thacher announced the election of 20 new partners, effective January 1, 2024. The promotions span various practice areas and offices, reflecting the firm's commitment to developing and recognizing talent from within....more
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