The Association of Philadelphia Tour Guides (APT) was founded in 2008 to bring professional and volunteer guides together, to act as a voice for our membership, and to ensure a high quality experience for every visitor in our city. The Association conducts the Education and Certification Program for Philadelphia city guides. APT, with a membership of approximately 170 as of April 2024 (about 40 corporate and 130 individual), is a Pennsylvania 501(c)6 non-profit organization.

Philadelphia tour guides take great pride in the services they provide to visitors and local residents exploring the rich historical, architectural, and cultural resources of Philadelphia.