Member Firm Profile

Winterbauer & Diamond PLLC

Firm Profile


Winterbauer & Diamond PLLC
7683 S.E. 27th St. #495
Mercer Island, Washington 98040

Phone: (206) 676-8444

Firm Size:

6 Lawyers

Primary Contact:

Kenneth J. Diamond

Attorneys Admitted to Practice In:


Firm Description

Winterbauer & Diamond PLLC is a premier Seattle employment and labor law firm dedicated to providing the highest quality litigation and counseling services on the full range of federal, state and local labor and employment law issues. Our mission is to provide employers the best of both worlds-the sophistication and expertise typically associated with a larger firm, together with the personal service, efficiency and cost savings a smaller firm can offer. Our representation is decisive, practical and responsive.

We represent public and private employers, from sole proprietorships and start-ups to Fortune 500 corporations, across a broad range of industries, including communications, advertising, health care, retail, manufacturing, high technology, transportation, air freight, insurance, real estate, hospitality, public utilities and public housing.

We pride ourselves on being both counselors and litigators. We believe each role complements and enhances the other. As counselors, we offer advice and guidance that have been battle-tested through litigation. We spend considerable time and energy educating clients to avoid mistakes that lead to lawsuits. We counsel our clients not only on what their legal rights are, but also on whether, when and how to exercise them. As litigators, we fight for our clients while remaining mindful of their broader business concerns and have substantial experience successfully representing clients in state and federal court and before regulatory agencies. We also have significant experience with arbitration, mediation and other forms of alternative dispute resolution.

The firm’s two principals each have a Martindale-Hubbell AV® Preeminent™ 5.0 out of 5 Peer Review rating and are included in Chambers USA, Woodward/White’s Best Lawyers in America®, and Thomson Reuters’ Washington Super Lawyers® list.


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Firm Representatives

Ken represents large and small employers on the full range of employment law matters. He graduated from Yale University (B.A.), Columbia University (M.A.) and Stanford Law School. Before moving to Seattle in 1997, Ken clerked for a federal judge in Baltimore for one year and then worked at two large law firms in Washington, D.C. for nine years. Ken has spoken at numerous employment law conferences and from 2014-2016 taught Employment Law as an adjunct professor at Seattle University School of Law.

Practice Specialties

  • Employment Litigation Defense
  • Discrimination/Human rights
  • Sexual Harassment
  • Wrongful discharge/Wrongful dismissal
  • Class, collective and representative actions (defense of)
  • EEOC/EEO investigations
  • FMLA
  • Retaliation/Whistleblower claims
  • Internal complaint investigations
  • Employment-related criminal defense
  • Class actions
  • Wage and hour/FLSA defense/Employment standards
  • Responses to administrative agency charges
  • Employment Counseling and Advice
  • Supervisor and harassment/violence training
  • Handbook Review
  • Compliance/Compliance audits
  • Leave laws
  • Personnel policies
  • Wage and hour audits
  • WARN Act/Plant closings/RIF Planning
  • Labor Unions/Labor Relations
  • Strikes and lockouts (planning and related court and board litigation)
  • Construction labor relations
  • Unfair labor practices
  • NLRB/Labor Relations Board Proceedings
  • Mediation
  • Arbitration
  • Supervisor training
  • Collective bargaining
  • Union avoidance and elections
  • Employment Contracts and Litigation
  • Non-compete/non-solicit agreements
  • Confidentiality and trade secret agreements
  • Trade secrets and non-compete agreements
  • Executive employment agreements (including change of control)
  • Pension, benefit and bonus provisions
  • Termination provisions (statutory requirements and reasonable notice)
  • Defamation
  • Occupational Health and Safety
  • OSHA inspection and compliance (US)
  • Workplace Privacy
  • Human Rights
  • Workers Compensation