African American Chamber of Commerce  
30 South 15th Street, Suite 102
Philadelphia, PA 19102

Genealogical Society of Pennsylvania (GSP), The 
1300 Locust Street, 2nd Floor
Philadelphia, PA 19107

German Society of Pennsylvania, The 
611 Spring Garden Street
Philadelphia, PA 19123

Germantown Historical Society 
5501 Germantown Avenue
Philadelphia, PA 19144

Greater Philadelphia Chamber of Commerce 
200 South Broad Street, Suite 700
Philadelphia, PA 19102

Historical Society of Pennsylvania, The 
1300 Locust Street
Philadelphia, PA 19107

National Railway Historical Society (NRHS), The 
100 North 20th Street, 4th Floor
Philadelphia, PA 19103

Philadelphia Convention and Visitors Bureau 
1700 Market Street, Suite 3000
Philadelphia, PA 19103

Valley Forge Convention and Visitors Bureau 
600 West Germantown Pike, Suite 130
Plymouth Meeting, PA 19462