For more than four decades, Fenwick & West LLP has helped some of the world’s most recognized companies become, and remain, market leaders. From emerging enterprises to large public corporations, our clients are leaders in the technology, life sciences and cleantech sectors and are fundamentally changing the world through rapid innovation.  MORE >

Fenwick & West was founded in 1972 in the heart of Silicon Valley—before “Silicon Valley” existed—by four visionary lawyers who left a top-tier New York law firm to pursue their shared belief that technology would revolutionize the business world and to pioneer the legal work for those technological innovations. In order to be most effective, they decided they needed to move to a location close to primary research and technology development. These four attorneys opened their first office in downtown Palo Alto, and Fenwick became one of the first technology law firms in the world.  MORE >

From our founding in 1972, Fenwick has been committed to promoting diversity and inclusion both within our firm and throughout the legal profession. For almost four decades, the firm has actively promoted an open and inclusive work environment and committed significant resources towards improving our diversity efforts at every level.  MORE >

FLEX by Fenwick is the only service created by an AmLaw 100 firm that provides flexible and cost-effective solutions for interim in-house legal needs to high-growth companies.  MORE >

Fenwick & West handles significant cross-border legal and business issues for a wide range of technology and life sciences who operate internationally..  MORE >

At Fenwick, we are proud of our commitment to the community and to our culture of making a difference in the lives of individuals and organizations in the communities where we live and work. We recognize that providing legal services is not only an essential part of our professional responsibility, but also an excellent opportunity for our attorneys to gain valuable practical experience, learn new areas of the law and contribute to the community.  MORE >

Year after year, Fenwick & West is honored for excellence in the legal profession. Many of our attorneys are recognized as leaders in their respective fields, and our Corporate, Tax, Litigation and Intellectual Property Practice Groups consistently receive top national and international rankings, including:

  • Named Technology Group of the Year by Law360
  • Ranked #1 in the Americas for number of technology deals in 2015 by Mergermarket
  • Nearly 20 percent of Fenwick partners are ranked by Chambers
  • Consistently ranked among the top 10 law firms in the U.S. for diversity
  • Recognized as having top mentoring and pro bono programs by Euromoney


We take sustainability very seriously at Fenwick. Like many of our clients, we are adopting policies that reduce consumption and waste, and improve efficiency. By using technologies developed by a number of our cleantech clients, we are at the forefront of implementing sustainable policies and practices that minimize environmental impact. In fact, Fenwick has earned recognition in several areas as one of the top US law firms for implementing sustainable business practices.  MORE >

At Fenwick, we have a passion for excellence and innovation that mirrors our client base. Our firm is making revolutionary changes to the practice of law through substantial investments in proprietary technology tools and processes—allowing us to deliver best-in-class legal services more effectively.   MORE >

Mountain View Office
Silicon Valley Center
801 California Street
Mountain View, CA 94041

San Francisco Office
555 California Street
12th Floor
San Francisco, CA 94104

Seattle Office
1191 Second Avenue
10th Floor
Seattle, WA 98101

New York Office
1211 Avenue of the Americas
32nd Floor
New York, NY 10036

Shanghai Office
Unit 908, 9/F, Kerry Parkside Office
No. 1155 Fang Dian Road
Pudong New Area, Shanghai 201204
P.R. China
+86 21 8017 1200

About our Securities Enforcement Practice

Fenwick & West’s securities enforcement group represents public companies and other regulated entities and their boards, officers and employees in investigations or proceedings by the Securities and Exchange Commission (SEC), the U.S. Department of Justice (DOJ) and other governmental and self-regulatory agencies. We also conduct high-stakes and often time-sensitive internal investigations for public and private multinational corporate boards and management in response to possible insider trading, accounting fraud, Foreign Corrupt Practice Act (FCPA) violations or other alleged misconduct.

Our practice includes former SEC and DOJ lawyers and other seasoned practitioners with decades of experience representing clients in bet-the-company enforcement and defense matters. We leverage the extensive regulatory experience of our colleagues throughout the firm, providing key strategic and practical insight to benefit our clients – both in responding to investigations and in proactively anticipating and addressing potential issues for our clients before they become problems.

We have extensive experience representing clients in technology, life sciences and retail industries as well as financial institutions including mutual funds, hedge funds and private equity funds. We also advise boards of directors and senior management on compliance, remediation and crisis management. Our lawyers are recognized as leading practitioners in securities regulation and enforcement by Chambers USA, The Legal 500 and other industry observers, and work closely with our securities litigation and white collar & regulatory defense groups to handle a wide range of matters in dynamic regulatory environments.

Fenwick & West’s securities litigation practice has been ranked as one of the country’s best by Chambers USA in 2015, 2016 and 2017. 

“Fenwick’s high-quality practice is often called upon by Silicon Valley-based technology companies to assist with a wide variety of securities disputes, and is particularly noted for its in-depth experience in handling post-IPO class action claims. Wider areas of strength include class actions and shareholder derivative claims, alongside expertise in regulatory investigations and defending enforcement actions.” – Chambers USA, 2017