Caelus LLC specializes in researching, designing, and developing great user experiences. We work primarily on software and hardware but also help in other types of research and design. 

Here are some of the methods and services we offer:

  • Usability study kinds of services (lab studies, site visits, user modeling, etc.)
  • Surveys of any size
  • Choice-based modeling/surveys
  • Agile UX/ backlog prioritization
  • Prototyping
  • Software UI design 
  • UI development
  • Medical device human factors and usability engineering (and testing). 
  • Training. We can train teams or individuals in areas such as customer site visits methods and strategies, UX research methods, and more.


We are located in Kirkland, WA, but offer our services to organizations of all sizes and in any geographical location.


Please don't hesitate to contact us with questions or inquiries. We ask that you fill out the form on the "contact us" page and someone will get back to you within 24 hours.