Call Us Today!
800-613-7989 ext. 242
712-252-1866 ext. 242

Timothy A. Clausen

Location: Sioux City, Iowa
Phone: 712-252-1866 ext. 215
Email: Email

Timothy A. Clausen

Tim received his undergraduate degree in political science as well as his law degree from the University of South Dakota. While in Law School, Tim was on the National Moot Court Team and the Order of Barristers. Tim joined the Klass Law Firm as a Summer Law School intern in 1988. Over 30 years later, he is a co-managing partner. He is admitted to and actively handles lawsuits and trials in federal, state and workers’ compensation courts in Iowa, South Dakota and Nebraska. He is a member of the Iowa State, South Dakota State and Nebraska State Bar Associations. He has served multiple terms on the Iowa Workers’ Compensation Section Council. He is currently the President of the Iowa Association of Workers' Compensation Lawyers, Inc. (IAWC). His practice areas include civil litigation, employment law, workers’ compensation, and alternative dispute resolution.

Outside the practice of law, Tim is a past member of the Board of Directors, Executive Board and Fundraising Committee for Camp High Hopes — a year round camp for individuals with special needs. He is a past member and Past President of the Iowa Lottery Authority having been appointed by the State’s Governor in 2002. He is a former member of the University of South Dakota Board of Trustees. He serves on a number of Church committees and is active with numerous charitable organizations.

Tim was born and raised here in Sioux City, Iowa. He and his wife, Paula, have two children. His son, Zachary, is a partner in the Firm, and his daughter, Madison, teaches grade school in the Sioux City Community School District.

Professional Associations and Memberships:

  • Iowa State Bar Association Member
  • Iowa Association of Workers’ Compensation Lawyers – Board of Governors
  • Iowa Defense Counsel
  • Nebraska State Bar Association Member
  • South Dakota State Bar Association Member
  • Woodbury County Bar Association Member
  • Woodbury County Bar Association, Young Lawyers Division, Past President
  • Iowa State Bar Association, Workers Compensation Section Council
  • Iowa Lottery Authority Past Member, Past Board President

Areas of Practice

  • Workers’ Compensation
  • Litigation

Professional Associations and Memberships

  • Iowa State Bar Association, Member
  • Nebraska State Bar Association, Member
  • South Dakota State Bar Association, Member
  • Woodbury County Bar Association, Member
  • Woodbury County Bar Association, Young Lawyers Division, Past President
  • Iowa State Bar Association, Workers Compensation Section Council
  • Iowa Lottery Authority, Past Member, Past Board President