Sidley Austin
Law Practice • 
Chicago, Illinois, United States • 2001-5000 Employees
Company overview
| Headquarters | Chicago, Illinois, United States |
| Phone number | +12128395300 |
| Website | |
| NAICS | 54111 |
| SIC | 811 |
| Founded | 1866 |
| Employees | 2001-5000 |
| Socials |
Sidley Austin Email Formats
Sidley Austin uses 4 email formats. The most common is {first initial}{last name} (e.g., jdoe@sidley.com), used 56.7% of the time.
| Format | Example | Percentage |
|---|---|---|
{first initial}{last name} | jdoe@sidley.com | 56.7% |
{first name}.{last name} | john.doe@sidley.com | 22.4% |
{first initial}.{last name} | j.doe@sidley.com | 15% |
{last name}{last name} | doedoe@sidley.com | 3% |
About Sidley Austin
Sidley is an elite global law firm. With 2,300 lawyers, annual revenue of US$3.4 billion, and experience that spans nearly 160 years, we have established a reputation using Built to Win℠ legal strategies in successfully representing clients in more than 70 countries on complex transactional, restructuring, investigation, regulatory, and litigation matters. With 21 offices strategically situated in key commercial and financial hubs across the world, our perspective and our reach are truly global. Our lawyers and business professionals, fluent in more than 80 languages, possess the cultural awareness and cross-border legal acumen needed to bring clarity to a dynamic business landscape. Our offices are found in Beijing, Boston, Brussels, Century City, Chicago, Dallas, Geneva, Hong Kong, Houston, London, Los Angeles, Miami, Munich, New York, Palo Alto, San Diego, San Francisco, Singapore, Sydney, Tokyo, and Washington, D.C. Attorney Advertising. Prior results do not guarantee a similar outcome. Photos may include Sidley alumni or other individuals who are not Sidley lawyers. Photos may be stock photographs. All service marks herein are registered or used by Sidley Austin Holding LLP worldwide. © 2025 Sidley Austin Holding LLP. All rights reserved.
Sidley Austin revenue & valuation
| Annual revenue | $3,100,500,000 |
| Revenue per employee | $629,000 |
| Estimated valuation?This valuation is estimated based on industry average for the Law Practice industry and current estimated revenues | $9,921,500,000 |
| Total funding | No funding |
Employees by Management Level
Total employees: 2001-5000
Seniority
Employees
Employees by Department
Sidley Austin has 1,951 employees across 16 departments.
Departments
Number of employees
Funding Data
Sidley Austin has never raised funding before.
Sidley Austin Tech Stack
Discover the technologies and tools that power Sidley Austin's digital infrastructure, from frameworks to analytics platforms.
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Frequently asked questions
Key Contact at Sidley Austin
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