| Pacific Locomotive Association, Inc. | Fremont, CA | www.ncry.org |
| Pacific Southwest Railway Museum Association, Inc. | La Mesa, CA | www.psrm.org |
| Paperton Junction Southern Railway | Pine Bluff, AR | |
| Paradise & Pacific R.R. | Scottsdale, AZ | |
| Pennsylvania Trolley Museum | Washington, PA | www.pa-trolley.org |
| PENNVIA Private Railcars, Inc. | West Lawn, PA | www.pennvia.com |
| Pioneer Lines Scenic Railway | Gettysburg, PA | www.gettysburgrail.com |
| Plymouth and Lincoln R.R. Corp. | Lincoln, NH | www.hoborr.com |
| Port Moody Station Museum | Port Moody, BC | www.vcn.bc.ca/pmmuseum |
| Port Stanley Terminal Rail | Port Stanley, ON | www.pstr.on.ca |
| Potomac Eagle Scenic Railroad | Parkersburg, WV | www.potomaceagle.info |
| Poway-Midland R.R. | Poway, CA | www.powaymidlandrr.org |
| Prairie Dog Central Railway | Winnipeg, MB | www.pdcrailway.com |
| Prince George Railway & Forestry Museum | Prince George, BC | www.pgrfm.bc.ca |
