We choose to go to the Moon this decade and do the other things, not because they are easy, but because they are hard.
John F. Kennedy

David Sieck

David Sieck is an Associate attorney in our firm’s Employment & Labor practice group who works out of the Phoenix office. His practice focuses on providing legal services to numerous joint labor-management trust funds’ employee benefit plans and their fiduciaries, including consultation, collection, and litigation services.

Prior to joining Fennemore, David represented a number of pension (including 401(k) plans), health and welfare plans, and apprenticeship plans. He works in-depth with the provisions of the Employee Retirement Income Security Act of 1974, as amended (ERISA), the Internal Revenue Code, the Taft-Hartley Act, relevant state statutes, and the related administrative regulations. David advises plan sponsors and fiduciaries on all aspects of plan governance and administration, including governmental compliance, and  has experience in both federal and state courts.

Born and raised in Spokane, Washington, David considers himself a counselor at law. He’s comfortable in a room with the labor trustees of the union on one side, and management trustees on the other – and he has the ability to understand, relate to and speak to both sides in a meaningful way that solves problems and finds solutions. This passion for insurance, employment and labor law, and all things ERISA and Taft-Hartley-related serve David well, and he enjoys the mix of transactional and litigation work needed by his clients – with an eye towards constantly improving and learning more.

Outside of work, you’d better be a warrior if you want to keep up with David. He’s a Triathlete who has completed several full-iron distance Triathlons and numerous half-iron distance races, and he has his sights set on the world’s most famous triathlon: the Ironman World Championship.  David enjoys adventuring and traveling with his wife and spending time with his Alaskan Malamute and two cats.


  • J.D., Gonzaga University School of Law
  • B.A., Washington State University


Our attorneys practicing in the employment and labor relations area advise and defend management in virtually all aspects of the employment relationship.

We have an extensive practice counseling employers on all aspects of employee benefits.  

Awards and Honors

  • Super Lawyers® Rising Stars, 2020-2024

Articles and Presentations

Professional and Community Activities

  • Board Member and Volunteer for Play for Gracie Foundation, Spokane, WA, 2014-2019


  • Arizona
  • Washington
  • U.S. District Court, District of Arizona
  • U.S. District Court, Eastern District of Washington
  • U.S. District Court, Western District of Washington
  • U.S. Bankruptcy Court, Eastern District of Washington
  • U.S. Bankruptcy Court, Western District of Washington