- P.R. Advertising Specialties Association
- P.R.O.C.E.E.D.
- PA American Water Company, Pittsburgh Operations
- PA Capital Regions Vacation Bureau
- Pace University
- Pacific Biometrics, Inc.
- Pacific Bridge, Inc.
- Pacific Coast Building Products
- Pacific Data Designs, Inc
- Pacific Gas and Electic
- Pacific Gas and Electronics
- Pacific Health Alliance
- Pacific Islander Community Council
- Pacific Life Insurance
- Pacific Northwest Transplant Bank
- Pacific Retirement Services Inc.
- Pacifica Hospital of the Valley
- Pack 779 - Webelos - 1
- PACO
- Padded Room LLC
- Paducah Drury Inn
- Paducah Drury Suites
- Paducah Pear Tree Inn
- Paducah-McCracken County CVB
- PaeTec Communications, Inc.
- Pagan Atlanta
- Page Memorial Hospital
- Paideia Academies
- Paideia Academy
- PaineWebber Inc.
- Painter Russell and Associates, PLLL
- PaintingParsons
- Palisades Medical Center
- Palm Bay Hospital
- Palm Beach Children's Hospital
- Palm Beach County
- Palm Beach County Convention and Visitors Bureau
- Palm Beach County Health Department
- Palm Beach Gardens Marriott
- Palm Beach Gardens Medical Center
- Palm Mortuaries
- Palm Springs Desert Resorts Convention and Visitors Authority
- Palmdale Regional Medical Center
- Palmer and Dodge LLP
- Palmetto General Hospital
- Palmetto Lowcountry Behavioral Health
- Palms of Pasadena Hospital
- Palms West Hospital
- Palmyra Medical Centers
- Palo Alto County Health System