The following are organizations that are considered affiliated with the UW for purposes of phone services.

• Airlift Northwest
• Burke Museum Association
• Community Development Properties
• Educational Research Properties
• Fred Hutchinson Cancer Research Center
• Henry Gallery Association
• KEXP
• KUOW Puget Sound Public Radio
• Portage Bay Insurance
• Radford Court Properties
• Seattle Biomedical Research Institute
• Seattle Cancer Care Alliance
• Seattle Children's Hospital
• Seattle Institute for Biomedical and Clinical Research (SIBCR)
• Twenty-Fifth Avenue Properties
• University Club of Seattle
• University of Washington Press
• Washington Biomedical Research Properties
• University of Washington Medicine
  • Harborview Medical Center
  • University of Washington Medical Center
  • University of Washington School of Medicine
  • University of Washington Medicine Neighborhood Clinics
  • University of Washington Physicians