Keil M. Mueller

Top rated Business Litigation attorney in Portland, Oregon

Keller Rohrback L.L.P.
Keil M. Mueller
Keller Rohrback L.L.P.

Practice Areas: Business Litigation, Securities Litigation

Licensed in Oregon since: 2008

Education: New York University School of Law

Selected to Super Lawyers: 2020 - 2023 Selected to Rising Stars: 2012 - 2016

Keller Rohrback L.L.P.

805 SW Broadway
Suite 2750
Portland, OR 97205 Phone: 971-253-4600 Email: Keil M. Mueller Visit website


Keil Mueller is a resolute and tireless advocate for his clients’ interests. 

With over 15 years of litigation experience, Keil has regularly represented government entities, investors, consumers, businesses and other Plaintiffs in a wide variety of complex legal matters and class actions. His practice focuses on issues related to securities and financial fraud, the environment, consumer class actions, and partner and shareholder disputes among others. Keil’s thoughtful but tenacious pursuit of his clients’ claims has contributed to significant courtroom victories and favorable settlements. He has successfully represented clients in matters of corporate malfeasance, taking on big companies such as AIG, Oppenheimer, FedEx Ground, JP Morgan Chase, and Bank of New York Mellon, just to name a few.

Currently, Keil is a key member of teams prosecuting claims on behalf of the State of Maryland, the State of Delaware, and the City of Seattle against multinational chemical manufacturer, Monsanto, and seeking to hold the corporate giant responsible for environmental contamination and other harms caused by Monsanto’s sale and marketing of PCBs. Prior to joining Keller Rohrback, Keil also was a member of the team that represented the State of Oregon in similar claims against Monsanto, which Monsanto recently agreed to settle for $698 million, the largest environmental settlement in Oregon’s history.

In addition to advocating for his clients, Keil serves as a board member of the Campaign for Equal Justice and of the Oregon Lawyer Chapter of the American Constitution Society.

First Admitted: 2006, New York

Professional Webpage:

Office location for Keil M. Mueller

805 SW Broadway
Suite 2750
Portland, OR 97205


4 Years Super Lawyers
5 Years Rising Stars
  • Super Lawyers: 2020 - 2023
  • Rising Stars: 2012 - 2016

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