- William Blair
- William Osler Health System
- Wilshire Health & Community Services
- WindRose Health Investors
- Winston & Strawn
- Winthrop University
- Wipfli LLP
- Wisconsin Hospice & Palliative Care Association
- Wisconsin Hospice & Palliative Care Collaborative
- Wisconsin Hospice & Palliative Care Collective
- Wisdom Ventures Fund
- Wisercare
- Workable
- World Health Organization
- World Hospice Palliative Care Alliance
- World Population Review
- Woundtech
- WTWH
- Xenex
- Yale Cancer Center


