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One guiding principle has driven our success over the past century: an unwavering commitment to client service. With lawyers and legal professionals across eight offices throughout the western United States, Lewis Roca has the resources and agility to handle virtually any matter. 

We understand the industries in which our clients work and their business objectives. Our advice encompasses corporate and commercial transactions, litigation and dispute resolution, intellectual property, government and regulatory issues, and more.

For decades, we have been at the forefront of legal change in intellectual property, business regulations, land use, technology, and civil rights. We’ve handled many high-profile matters in U.S. history, including Miranda v. Arizona, the United States Supreme Court case that had a significant impact on law enforcement around the world. Our alumni include presidential advisors, federal appellate judges, and renowned legal scholars.

Why Lewis Roca

  • Strong, longstanding client relationships. Our commitment to our clients is evident in our long-standing relationships. We have proudly served more than 100 clients for 25+ years.

  • Relentless advocates across all legal settings. Our trial lawyers know how to win difficult cases in challenging venues, across every conceivable type of complex litigation and alternative dispute resolution proceeding.

  • Legal pioneers on the regulatory path to new industry. Our lawyers provide front-row subject matter expertise in new business territory such as unmanned aircraft systems, artificial intelligence, alternative energy, and online gaming, among many others.

  • Counselors for complex economic development ecosystems. Our lawyers support centralized ecosystems, and routinely promote industry, education, and venture capital for advanced industries.

  • Highly technical practitioners to power through new frontiers. Our lawyers test static views toward legal solutions, engaging corporations, research institutions, and inventors on a whole new level—as true technologists and scientists who thoroughly understand how to protect the licensing of new technologies.


We provide resources for our clients around the world through the firm’s networks of law firms.

TerraLex (
Contact: Amanda L. Thatcher

As business and needs grow globally, clients require access to an expanded support system. TerraLex offers access to rigorously vetted law firms from strategically-resourced locations – ensuring strong legal advocates no matter how far and wide your business grows. For more than 25 years TerraLex member firms have provided clients with trusted, quality legal service where it counts as a locally-focused, strategically-resourced, and expertly-vetted collaboration of problem solvers poised to resolve issues of all scopes.

Contact: Mike Plachy, Caitlin McHugh, Ben Ochoa, and Abby Harder

USLAW is an international organization composed of more than 60 independent, full practice firms with roots in civil litigation, including more than 6,000 lawyers across the U.S., Canada, Latin America, and Asia, and with affiliations in Africa and with TELFA in Europe. USLAW is comprised of highly-rated law firms that are part of the NETWORK by invitation only. Member firms undergo a rigorous review process to ensure outstanding quality of lawyers throughout the USLAW NETWORK. USLAW firms are experienced in commercial and business law, employment and labor law, litigation, and other business-related areas of law. All firms have substantial trial experience. USLAW member firms provide legal representation to major corporations, insurance companies, and large and small businesses alike.

TAGLaw (
Contact: Dan Waite or Dan Polsenberg

TAGLaw members are highly-respected, value-driven law firms with local market knowledge and expertise. Members are carefully chosen based on their reputation and record, and on recommendations from existing members. Members undergo a rigorous screening process prior to invitation to the alliance and are ultimately reviewed and approved by the TAGLaw Advisory Board.

Contact: Mary Ellen Simonson and Howard Cole

The Employment Law Alliance (ELA) is the world's largest network of labor and employment lawyers. With leading employment, labor, and immigration lawyers in more than 120 countries, all 50 U.S. states and every Canadian province, the ELA provides multi-state and multi-national companies seamless and cost-effective services worldwide. International businesses benefit from the ELA’s reach and deep familiarity with both the local laws and the local courts. Clients also appreciate a single point of contact, consolidated invoicing, and regional billing rates.


At a Glance

  • 110+ Years of Service

  • 230+ Lawyers

  • 8 Offices


Firm Leadership

Administrative Leadership

We believe that every client deserves an exceptional experience and we've made it our mission to continuously exceed expectations and help you achieve your goals. It's how we've redefined the client experience and why our clients recommend us to their peers.

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