Resources / Public data
Data sources
Every number we print comes from a public database you can query yourself, and this is the full list. We'd rather you check our work than take our word for it — that's the whole point of the operation.
The city's records
- AtlasVerified July 2026
Every permit, violation, and zoning record in the city, searchable by address. Start here.
- property.phila.govVerified July 2026
Assessments and sales history for every parcel in Philadelphia.
- OpenDataPhillyVerified July 2026
The city's open-data catalog. We query its APIs every week to build the Index; you can too.
State & federal
- PA business entity searchVerified July 2026
The Commonwealth's corporate registry — the tool we use to put names on LLC buyers.
- PLCB+ license searchVerified July 2026
Liquor license status and transfers, straight from the state board.
- PA WARN noticesVerified July 2026
Layoff filings with the PA Department of Labor & Industry. Bad employment news shows up here before it shows up anywhere else.
- CourtListenerVerified July 2026
Free access to federal court dockets, including Eastern District of Pennsylvania bankruptcies.
- FREDVerified July 2026
The St. Louis Fed's data library — home of the regional economic series behind our economy coverage.
Know something that belongs here? Reply to any issue.
The directory is static. The city isn't.
One email a week on who's buying, building, and opening in Philadelphia — every number checkable against the public record.