- Presbyterian Hospital
- Presbyterian Hospital
- Presbyterian Seniorcare
- Presbyterian Village Redford
- Presbyterian-St. Luke's Medical Center
- Presbytery Homes Inc.
- Prescription Relief
- Press Ganey Associates, Inc.
- Pressley Ridge Schools
- Prestige Construction Group, Inc.
- Preston Memorial Hospital
- Prevailing Woman Ministries
- Prevent Child Abuse Virginia
- Prgressive Group Alliance
- Pribuss Engineering, Inc.
- Price Automotive Group
- Price Waterhouse Coopers LLP
- PricewaterhouseCoopers
- Pride Industries
- Primaris
- Primary Care Health Services,Inc.
- Primary Children's Hospital
- Primary Children's Hospital Transplant Program
- Primary Health Care Center of Dade, Inc.
- Primary Health Center Marshalltown Medical Clinic
- PrimaryOne Health
- Prime Line Power Equipment Products
- Primedia
- Primedia, Inc.
- Primedoc
- Prince George Associates, Inc.
- Prince George's County
- Prince Georges County, Maryland Conference and Visitors Bureau, Inc.
- Princess Royale
- Princeton Baptist Medical Center
- Princeton Community Hospital
- Princeton Courtyard by Marriott, Princeton, NJ
- Principal Financial Group - Des Moines
- Principal Financial Group - Hiawatha
- Printing Industries of America, Inc.
- Printis-McCullough and Associates
- Priority One Services, Inc.
- Prism and Associates Inc.
- Prisma Health
- Prisma Health Richland Hospital
- Prisma Health Tuomey
- Prison Fellowship
- Private Label Travel, Inc.
- PRL Central Laborator Services
- Pro Ski Instructors of America-Ski Patrol