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 Cleantech Practice

Fenwick & West has a long and proud history of working with companies at the forefront of alternative energy and other cleantech-related technologies.

Our cleantech team helps clients in all areas of renewable energy – biofuels, chemical, electric, solar and wind – to successfully navigate the intellectual property, corporate, tax and litigation challenges faced in today’s highly competitive environment.

In recent years, our Cleantech practice has expanded considerably in order to keep pace with this growing sector. Today, companies, investors and academic/research institutions in all areas of energy consumption, power management, and alternative fuels and materials rely on our attorneys for a wide range of legal services, including:

Why Cleantech Companies Choose Fenwick

We understand the science behind our clients

We have a deeper understand of our clients’ technologies because we hire professionals with advanced technical degrees from Stanford, MIT, Johns Hopkins and other leading academic institutions, as well as post-graduate hands-on industry experience in the areas of chemistry, biology, electrical and mechanical engineering. With this combined legal and technical expertise, you will receive value from the start because you will be working with professionals who truly understand your business and can provide creative and practical guidance to help you achieve your goals.

We are deeply entrenched in the venture community

Fenwick has deep and long-standing relationships with the most active venture capitalists in all technologies and all stages of funding. We know better than almost any other law firm how the venture community works – everything from which investors are specifically interested in your technology and stage of growth, to when it makes sense to remain independent or pursue and IPO or merger. We can also provide you with guidance on business model issues, fundraising strategy and development of quality investor materials suitable for meaningful evaluation.

Our intellectual property professionals help companies at all stages of development

We have been working with rapidly evolving companies at the forefront of innovation for more than four decades.  Our seasoned patent professionals provide patent counseling and prosecution services for all sizes of patent portfolios and for dozens of cleantech-related technologies, including cellulosic ethanol, biosynthetic fuel production, carbon fixation technologies, nuclear material management systems, power supply, power control and power management circuits, and software. Our cleantech clients also rely on us to draft and negotiate licensing agreements.

What you Can Expect with Fenwick on Your Team

A group of top legal, technical and scientific minds that understands your business

Because of our combined legal and technical expertise, we will work with you to provide advice that is efficient, relevant and in consideration of your competitive environment. Our attorneys regularly make presentations at industry conferences, particularly on funding trends and intellectual property issues facing emerging cleantech companies, investors and research institutions. They are also actively involved in cleantech industry groups, such as the Apollo Alliance, an organization devoted to creating a sustainable clean energy economy.

A collaborative and fully-integrated team of professionals

Our culture promotes cross-practice collaboration, so whether your needs involve mergers and acquisitions, intellectual property, litigation or tax, licensing, antitrust or benefits, our attorneys are committed to working together to make available to you all the necessary resources to address any legal issue.

Access to our extensive network of investors

Whether your funding needs are seed/angel, early or late, we offer a systemized approach to connecting our cleantech clients with the appropriate investors based on stage of development, technology and amount/stage of investment.

A commitment to managing legal costs

We will work diligently with you to provide high quality, yet cost effective legal services. We are always looking for ways to more effectively deliver superior legal and have made substantial investments in cutting-edge tools and processes that enhance efficiency while reducing costs. Additionally, our firm was a pioneer in developing creative alternative fee arrangements and has been recognized in a number of legal publications for our innovation in this area.