Data

• County Business Patterns. County level data (incl. counts, size, quarterly payroll) on organizations of all types in the U.S.
• Fiscal Austerity Project. Governance data, multiple cities.
• HUD datasets. Housing and Urban Development, multiple datasets.
• National Center for Charitable Statistics. Government data on non-profit organizations in the U.S.
• Neighborhood Change Database. Combined tract-level data, 1970-2000. By the Urban Institute.
• Pew Research Databank. Multiple, rich datasets.
• ReferenceUSA.  Exceptionally detailed data (including address, credit rating, number of employees) for 14 million businesses and organization in the US.  Also UK, Canada data.  Available through many libraries.
• Zip Business Patterns. Zip code level data (counts, size) on organizations of all types in the U.S.