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 >

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:

  • Nearly 15 percent of Fenwick partners named America's Leading Lawyers for Business by Chambers USA and Chambers Global
  • Selected as a "Go-To" law firm by in-house legal departments at Fortune 500 companies in Corporate Counsel magazine
  • Named to The National Law Journal's inaugural "Intellectual Property Hot List" for outstanding patent, copyright, trademark and IP litigation services


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

Shanghai Office
36/F, Room 3690, Tower 2
Shanghai IFC
8 Century Avenue, Pudong
Shanghai 200120, China
+86 21 6062 6104

Mergers & Acquisitions


About Our Mergers & Acquisitions Practice

Fenwick & West is one of the premier technology mergers and acquisitions practices in the nation, recently ranked by Bloomberg as one of the Top 10 M&A legal advisors in the U.S. – across all industries.

Our M&A group provides customized transaction services to meet each client's unique business needs, communications preferences and technology infrastructure requirements. We have an extensive group of experienced attorneys available for deals of any size and complexity. ​Our team includes attorneys specializing in technology transactions, patents and IP litigation. In addition, our attorneys have a broad range of expertise in domestic and international tax issues.

Across all industries, Fenwick & West consistently ranks among the top M&A firms in the United States. Recent rankings include:

  • Ranked by Mergermarket as one of the Top 10 M&A legal advisors for Technology deals in the world
  • Ranked by Bloomberg as one of the Top 10 M&A legal advisors in the U.S. – across all industries
  • Ranked by FactSet as one of the Top 5 M&A legal advisors in the U.S.; also ranked by FactSet as one of the Top 20 M&A legal advisors worldwide
  • Ranked by Thomson Reuters as one of the Top 10 M&A legal advisors in the U.S. and as one of the Top 25 M&A legal advisors worldwide
  • International Tax Review (2012) named Fenwick & West "Americas M&A Tax Firm of the Year"
  • Honored by Global M&A Network with the “2013 Global M&A Deal of the Year” for representation of Facebook in its $1B acquisition of Instagram; also honored with the “2013 Technology & Services Deal of the Year” for representation of Cisco in its $5B acquisition of NDS

In recent years, the firm has completed more than $375 billion worth of transactions, including significant acquisition programs for leading serial acquirers. Representative experience includes:

  • Counsel for Cisco Systems in its $6.9B acquisition of Scientific-Atlanta, its $5B acquisition of NDS Group, its $3.2B tender offer for WebEx Communications, its $2.9B acquisition of Starent Networks, its $2.7B acquisition of Sourcefire, and over 100 other transactions for Cisco Systems
  • Counsel in one of the largest Internet deals ever – VeriSign's $21 billion acquisition of Network Solutions – and more than 25 other VeriSign acquisitions
  • Counsel in one of the largest software mergers ever – Symantec's $13.5 billion acquisition of VERITAS – and more than 30 other Symantec acquisitions
  • Counsel for Facebook in its $1B acquisition of Instagram, and over 40 other transactions for Facebook
  • Counsel in many of the most important strategic cross-border mergers including Spreadtrum Communications’ $1.78B take private acquisition by Tsinghua Unigroup
  • Counsel to Data Domain in the bidding war between NetApp and EMC, leading to Data Domain's $2.4 billion acquisition by EMC
  • Counsel in many of the most important strategic mergers of software companies, including: SuccessFactors' $3.4 billion acquisition by SAP, Macromedia's $3.4 billion merger with Adobe Systems, VERITAS' $3.4 billion acquisition of Seagate Software, Opsware's $1.6 billion acquisition by Hewlett-Packard, MySQL's $1 billion acquisition by Sun Microsystems and Intuit's $1.35 billion acquisition of Digital Insight
  • Counsel for some of the largest life sciences industry mergers in recent years – including Agilent Technologies’ $1.5 billion acquisition of Varian, Ocular Sciences’ $1.2 billion acquisition by The Cooper Companies, SonoSite's $995 million acquisition by Fujifilm and Connetics’ $930 million acquisition by Stiefel Laboratories