Insights

Global Legal Reach Simpson Thacher & Bartlett LLP has an extensive international presence with offices across major financial centers including New York, London, Hong Kong, Tokyo, and São Paulo, making it a prime target for multinational corporations seeking cohesive legal services across jurisdictions.

Financial Strength The firm generates substantial revenue between one and ten billion dollars and employs over two thousand legal professionals, indicating a stable and high-capacity legal practice suitable for enterprise-level clients requiring comprehensive legal support.

Technological Adoption Utilizing advanced tech tools such as Power BI, SAS, and SAP alongside modern web platforms, Simpson Thacher demonstrates a commitment to leveraging technology for efficiency and data-driven legal services, opening opportunities for tech-enabled legal solutions.

Recent Legal Talent Moves Key personnel changes, like the departure of experienced counsel and leadership moves in banking and regulatory practices, highlight ongoing strategic shifts, which could be leveraged for offering specialized consultancy or legal training services.

Community & Pro Bono Engagement Active participation in pro bono initiatives such as free legal clinics with Volsprobono shows the firm's commitment to community engagement, creating pathways for partnership opportunities focused on corporate social responsibility or nonprofit legal services.

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Simpson Thacher & Bartlett LLP Tech Stack

Simpson Thacher & Bartlett LLP uses 8 technology products and services including SAS, Power BI, ISO/IEC 27701, and more. Explore Simpson Thacher & Bartlett LLP's tech stack below.

SAS
Business Intelligence
Power BI
Business Intelligence
ISO/IEC 27701
Certificates
Prezi
Communication And Collaboration
SAP
Customer Relationship Management
React
Javascript Frameworks
Microsoft Windows
Operating Systems
Android
Programming Languages

Media & News

Simpson Thacher & Bartlett LLP's Email Address Formats

Simpson Thacher & Bartlett LLP uses at least 2 format(s):

Simpson Thacher & Bartlett LLP Email Formats	Example	Percentage
First.Last@stblaw.com	John.Doe@stblaw.com	55%
FLast@stblaw.com	JDoe@stblaw.com	41%
F_Last@stblaw.com	J_Doe@stblaw.com	3%
Last@stblaw.com	Doe@stblaw.com	1%
First.Last@simpsonthacher.com	John.Doe@simpsonthacher.com	78%
First_Last@simpsonthacher.com	John_Doe@simpsonthacher.com	11%
First@simpsonthacher.com	John@simpsonthacher.com	6%
FLast@simpsonthacher.com	JDoe@simpsonthacher.com	5%

Frequently Asked Questions

Where is Simpson Thacher & Bartlett LLP's headquarters located?

Simpson Thacher & Bartlett LLP's main headquarters is located at 425 Lexington Avenue New York, New York 10017 United States. The company has employees across 5 continents, including North AmericaEuropeAsia.

What is Simpson Thacher & Bartlett LLP's phone number?

You can contact Simpson Thacher & Bartlett LLP's main corporate office by phone at

+1-212-455-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Simpson Thacher & Bartlett LLP's official website and social media links?

Simpson Thacher & Bartlett LLP's official website is simpsonthacher.com and has social profiles on LinkedIn.

What is Simpson Thacher & Bartlett LLP's NAICS code?

Simpson Thacher & Bartlett LLP's NAICS code is 54111 - Offices of Lawyers.

How many employees does Simpson Thacher & Bartlett LLP have currently?

As of June 2026, Simpson Thacher & Bartlett LLP has approximately 3.7K employees across 5 continents, including North AmericaEuropeAsia. Key team members include Ceo / President: W. S.Chief Operating Officer, Emea: B. J.Chief Digital, Knowledge & Innovation Officer: S. S.. Explore Simpson Thacher & Bartlett LLP's employee directory with LeadIQ.

What industry does Simpson Thacher & Bartlett LLP belong to?

Simpson Thacher & Bartlett LLP operates in the Law Practice industry.

What technology does Simpson Thacher & Bartlett LLP use?

Simpson Thacher & Bartlett LLP's tech stack includes SASPower BIISO/IEC 27701PreziSAPReactMicrosoft WindowsAndroid.

What is Simpson Thacher & Bartlett LLP's email format?

Simpson Thacher & Bartlett LLP's email format typically follows the pattern of First.Last@stblaw.com. Find more Simpson Thacher & Bartlett LLP email formats with LeadIQ.

When was Simpson Thacher & Bartlett LLP founded?

Simpson Thacher & Bartlett LLP was founded in 1884.

Simpson Thacher & Bartlett LLP

Q: What technology does Simpson Thacher & Bartlett LLP use?

Simpson Thacher & Bartlett LLP's tech stack includes spaCy, Microsoft Azure SQL Database, COBIT Framework, UPS, Windows 10.

Q: What is Simpson Thacher & Bartlett LLP's NAICS code?

Simpson Thacher & Bartlett LLP's NAICS code is 54111 (Offices of Lawyers).

Law PracticeNew York, United States1001-5000 Employees

Simpson Thacher & Bartlett LLP is a law practice established in 1884 and headquartered in New York City. The firm employs between 1,001 and 5,000 people and has approximately 2,000 lawyers. It maintains 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 clients worldwide. More information about the firm is available on its website at simpsonthacher.com.