- Peapack-Gladstone Bank
- Pear Tree Inn Overland Park
- Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility
- Pearl River County Hospital and Nursing Home
- Pearland Area Chamber of Commerce
- Peconic Bay Medical Center
- Pediatric Clinical Trials International, Inc.
- Pediatrico Universitario Centro Medico
- Pediatrics East, Inc.
- Pee Dee Healthy Start, Inc.
- Pegasus Communications Corp.
- Peggy Heller Elementary School
- Pelham Medical Center
- Pella Corp.
- Pella Regional Health Center
- Pembina County Memorial Hospital
- Pemco
- Pen Bay Medical Center
- Pender Memorial Hospital
- Peninsula Regional Medical Center
- Penn Engineering and Manufacturing Co.
- Penn Highlands Brookville
- Penn Highlands Clearfield
- Penn Highlands DuBois
- Penn Highlands Elk Regional
- Penn Independent, Corp.
- Penn Medicine Princeton Medical Center
- Penn Presbyterian Medical Center
- Penn State Behrend
- Penn State Behrend SNA
- Penn State Milton S. Hershey Medical Center
- Penn United Technology, Inc.
- Pennknoll Village
- Pennsville National Bank
- Pennswood Village
- Pennsylvania Academy of Family Physicians
- Pennsylvania Alliance for Association Advancement
- Pennsylvania Association of Community Bankers
- Pennsylvania Association of Community Health Centers
- Pennsylvania Automotive Association
- Pennsylvania Convention Center Authority
- Pennsylvania Department of Health
- Pennsylvania Dutch Convention and Visitors Bureau
- Pennsylvania Hospital - Penn Medicine
- Pennsylvania Music Educators Association
- Pennsylvania Psychiatric Institute
- Penobscot Valley Hospital
- Penrose - St. Francis Health Services
- Pension Benefit Guaranty Corporation
- Pentech Pharmaceuticals, Inc.