- Pitkin County
- Pitney Bowes
- Pitney, Hardin, Kipp and Szuch
- Pitt Community College
- Pitt County
- Pitt County Medical Society
- Pitt-Ohio Express
- Pitts Logistics Systems
- Pittsburgh - Renaissance Hotel
- Pittsburgh AIDS Task Force
- Pittsburgh Automobile Trade Association
- Pittsburgh Center for the Arts
- Pittsburgh Marriott North, Cranberry, PA
- Pittsburgh Opera
- Pittsburgh Parks Conservancy
- Pittsburgh Society of Association Executives
- Pittsburgh Symphony
- Pittsburgh UA
- Pittsburgh Zoo
- PKD Foundation
- Place Dubourg
- Placentia-Linda Hospital
- Placer County
- Places with Spaces
- Plainfield ER
- Plains Resources
- Plainview Area United Way
- Plainview Hospital
- Planet Discover
- Planet Hollywood
- Planet Sub
- PlanetBids
- Planisware
- Planned Parenthood
- Plano Community Home Inc.
- Plansoft Corporation
- Plantation General Hospital
- Plasterers Local 31
- Plasti-Form
- Plasticard-Locktech International
- Plateau Medical Center
- Platte Valley Medical Center
- Play
- Play To Win Tennis Shop
- Plaza Auto Auction
- Plaza Inn and Suites at Ashland Creek
- Pleasant Hill Library
- Pleasant Ridge Manor
- Pleasant Valley Hospital
- Plumbers, Local 55