- J.D. Power
- J.P. Morgan
- Jacksonville Memorial Hospital
- Jacobi Medical Center
- JAMA
- JAMA Health Forum
- JAMA Internal Medicine
- JAMA Network
- JAMA Network Open
- JAMA Surgery
- James and Angela Hambrick Foundation
- James J. Peters Bronx Veterans Affairs Medical Center
- JANA Partners LLC
- Janus Henderson Investors
- Javalina’s Coffee
- JCO Oncology Practice
- JDSupra
- Jeff’s Place
- Jefferies Financial Group
- Jefferson Health