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:

  • 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
13th 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

William R. Schreiber

Partner, Corporate  

Mountain View 650.335.7855



William Schreiber concentrates his practice on representation of startup companies from incorporation through an initial public offering or acquisition and representation of public companies in acquisitions and joint venture activities. Bill's clients range from venture-financed startup companies to publicly traded companies.

Bill has represented numerous private, VC-backed companies, primarily in internet, software, semiconductor, networking and life science technologies, and currently include Adara Media, BountyJobs, Denali Software, Enkata Technologies, ImageShack, Joby, Nexenta, Nexsan, Permuto, Pivotal Systems, Precise Software, Queplix, Rhythm NewMedia, Silver Peak Systems, Slideshare, SpinMedia, SuccessFactors, Sunrise Telecom, Tidemark Systems, Uber Technologies, Uptake, Vudu, Weebly, WhiteHat Security, Wordnik, Xignite, and He has also represented several venture capital firms, including Apex Partners, Azure Partners, Baseline Ventures, Benchmark Capital, DCM, Draper Fisher Jurvetson, Greylock Partners, Harrison Metal Ventures, InterWest Venture Partners, JAFCO Ventures, Kleiner Perkins Caufield & Byers, Lightspeed Venture Partners, Opus Capital Ventures, Palo Alto Venture Partners, Rembrandt Venture Partners, Sierra Ventures, Sigma Partners, Storm Ventures, Sutter Hill Ventures and Venrock.

Bill has represented the following companies through their initial public offering: Alantec, Ascend Communications, FiberTower Corporation, Enlighten Software, GoRemote Internet Communications,, Puma Technology, Raytel Medical, SuccessFactors and Vantive.

Bill has represented the following companies, among numerous others, through their acquisition: Ascend Communications' $19 billion acquisition by Lucent Technologies; FiberTower's $1.5 billion merger with First Avenue Networks;'s $1.2 billion acquisition by; Integrated Systems' $460 million acquisition by Wind River Systems; Denali's $315 million acquisition by Cadence Design Systems; TriVida's $180 million acquisition by BeFree; Slideshare's $119 million acquisition by LinkedIn; Siliquent's $85 million acquisition by Broadcom and Vudu's acquisition by WalMart Stores.

The additional public companies he has represented include Adaptec, Biovail, Castelle, Philips Electronics and Siemens.

Prior to receiving his law degree, Bill earned a C.P.A. in California in 1990 while working at Deloitte & Touche.