Winterbauer & Diamond PLLC

Steven Winterbauer

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Practice Areas

Steve has extensive experience counseling employers on all aspects of labor and employment law, and litigating before multiple state and federal courts and enforcement agencies. His arbitration experience ranges from private arbitration pursuant to mandatory arbitration agreements to traditional labor arbitration, to public sector arbitration.


Founded Winterbauer & Diamond in 1996. Before that he was a partner and chairperson of the Employment and Labor Group at Foster Pepper & Shefelman. Listed among top attorneys in Washington Super Lawyers®, Chambers USA, and Best Lawyers in America®. Holds Martindale-Hubbell AV® Preeminent™ peer review rating.

Professional Memberships

Executive Committee-Washington State Bar Association Employment and Labor Law Section, 2012-2013; Employee Relations Law Journal Editorial Advisory Board, 1996–2013; Washington Defense Trial Lawyer Association; Washington State Bar Association’s Annual Employment Law Institute, co-founder and co-chair, 1993-2010; Pacific Coast Labor Law Conference Planning Committee, 1993–1995; Mercer Island Civil Service Commission, Commissioner, 1996–2001; JAMS*Endispute, Mediator/Arbitrator, 1996-2001; American Bar Association (Employment & Labor Law; Litigation); Washington State Bar Association (Employment & Labor Law); King County Bar Association (Employment & Labor Law, Litigation).


B.A, with Distinction, Phi Beta Kappa, Stanford University. J.D., Stanford Law School.