Pennsylvania
| Name | Contact | Phone | Website | |
| American Stamp Dealers Association | Dana Guyer | Phone 800.369.8207 | Website | |
| Eric Jackson Stamps | Eric Jackson | Phone 610.926.6200 | Website | |
| Pennsylvania Postal History Society | Steve Kennedy | Phone 301.332.5939 | Website | |
| Shaulis Stamps | Scott Shaulis | Phone 724.733.4134 | Website | |
| Subway Stamp Shop | Virginia Goldberg | Phone 814.946.1000 | Website |
Please notify Steve Kennedy at skennedy at paphs.org of any errors or omissions.
