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

Fenwick Partners Named Among California's Top Women Lawyers

June 12, 2017

The Daily Journal has recognized Fenwick tax partner Larissa Neumann and patent partner Antonia Sequeira among the Top 100 Women Lawyers of 2017. The Daily Journal’s annual list honors the most outstanding women lawyers in California.

Larissa Neumann: A Go-to Tax Attorney for Tech and Multinational Companies
Neumann was lauded by the Daily Journal for her work with a noteworthy list of leading corporations that includes Facebook, Dropbox, Canadian restaurant giant Tim Hortons and French pharmaceutical company Aventis Agriculture AS. Neumann, whose specializes in transfer pricing, started at Fenwick as a summer associate.

The Daily Journal highlighted Neumann’s work for Facebook in the company’s $2 billion acquisition of virtual reality headset maker Oculus VR and her role as special counsel to Tim Hortons in its $11.4 billion transaction with Burger King in 2015.

In addition to writing articles on national and international tax law, Neumann mentors new tax associates at Fenwick and students at UC Berkeley School of Law, where she teaches international tax law. The Daily Journal noted that she also dedicates between 100 and 200 hours a year doing pro bono work.

Antonia Sequeira: A Leading Patent Lawyer Assisting Clients with Cutting-Edge Technologies
The Daily Journal heralded Antonia Sequeira as “a leader among women in patent law, a field still dominated by men.”

The Daily Journal recognized Sequeira, who helps protect client’s software and internet technologies, including those involving social networking, online advertising, telemedicine, computer security and e-commerce, for the work she and the patent team she manages handle across a wide range of innovative technologies.

Some of those include a virtual reality systems in the medical and digital health spaces and software that assists doctors in choosing optimal radiation treatment plans for cancer patients.

Sequeira is lead outside counsel for Facebook, in charge of protecting many of the company’s most valuable technologies, the Daily Journal reported. Some of Sequeira’s other clients include Mynosys Cellular Devices, LELO Inc., Cipherome and Coursera.

Both Neumann and Sequeira’s full profiles can be accessed through the Daily Journal website (subscription required).