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Shylah R. Alfonso



Shylah Alfonso is a partner in the Commercial Litigation group. She focuses her practice on antitrust and consumer protection counseling and litigation, antitrust clearance for mergers and acquisitions, class action and complex commercial litigation, and intellectual property litigation. She has represented clients on a variety of antitrust matters, such as litigation matters in front of the Federal Trade Commission, as well as bringing and defending antitrust claims in state and federal courts. She also provides counseling and training to companies on the antitrust aspects of joint ventures, pricing, distribution agreements, IP licensing, trade association participation, involvement in standard-setting organizations, and other transactions or trade activities. Shylah works with clients involved in various industries, including telecommunications, semiconductor, computer software, pharmaceutical, retail and the Internet. Representative clients have included TriQuint Semiconductor, Intel, craigslist, Anacor Pharmaceuticals, REI and Costco.

In addition, she is a co-owner of a boutique Washington winery and counsels clients on state liquor licensing and compliance regulations.

Professional Recognition

  • Listed in Washington Law and Politics, “Rising Stars of Washington Law”

Professional Leadership

  • Washington State Bar Association; Consumer Protection, Antitrust and Unfair Business Practice Section, Chair, 2012 - present; Executive Committee, 2007 - 2010, 2011
  • Washington Wine Institute, Vice President, 2010 - present
  • National Strategic Diversity Committee, Perkins Coie LLP, 2012 - present
  • National Associate and Counsel Evaluation Committee, Perkins Coie LLP, 2013
  • Seattle Hiring Committee, Perkins Coie LLP, 2007 - 2010, 2011 - 2013
  • Seattle 1L Summer Associate Diversity Committee, Perkins Coie LLP, 2011 - 2012, Chair, 2013

Related Employment

  • Attorney General of Washington, Law Clerk, 2000
  • Seattle Public Defender’s Office, WA, Intern Investigator, 1997


  • University of Washington School of Law, J.D., with high honors, 2002
    Associate Editor-In-Chief, Washington Law School Review
  • University of Washington, B.A., Political Science/Society and Justice, 1998

Bar Admissions

  • Washington

Court Admissions

  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. District Court for the Western District of Washington
  • U.S. District Court for the District of Colorado