Philip Guess

Adjunct Professor


Mr. Guess is a partner in K&L Gates' Seattle office. His current practice emphasizes representing private and public entities in commercial, securities and energy disputes.

He has a broad range of experience in business litigation, including representing companies in disputes involving alleged contractual breaches, usurpation of trade secrets, tortious interference and class action allegations. His commercial litigation clients include Washington Mutual Bank,, T-Mobile Corporation and Microsoft. He has litigated numerous cases in Washington and California courts as well as in a number of other jurisdictions, including New York, Oregon, Montana and Tennessee.

He has represented numerous companies involving securities matters, including derivative claims, assertions by minority investors, class action allegations and disputes with government regulators. In these cases, he has worked in a variety of capacities, including company counsel, investor counsel and shadow counsel in both state and federal courts in Washington, California and New York.

Mr. Guess has represented a variety of energy companies including PPL Montana, PPL and Northwest Pipeline in commercial and government litigation. These cases involved a significant number of issues from constitutional preemption, to alleged contractual breaches, to class action allegations. Prior to attending law school, heworked in the energy industry as a rate and tariff analyst for Pacific Gas & Electric Company.

Mr. Guess is licensed to practice in both Washington and California and, prior to moving to Seattle, practiced for three years in San Francisco where he focused on complex commercial litigation.

His achievements include being named a "Super Lawyer" by Washington Law and Politics magazine for the last two years and a "Rising Star" by the same publication for the preceding two years.


K&L Gates
925 Fourth Avenue, Suite 2900
Seattle, Washington 98104-1158
Phone: (206) 370.5834
Web: K&L Gates Bio


  • B.A., University of California, Berkeley (1988) with high distinction in general scholarship
  • B.S., University of California, Berkeley (1988) with high honors
  • J.D., University of Virginia School of Law (1993) Articles Editor Virginia Journal of International Law


  • Securities Regulation