Pennsylvania Business by the Numbers: 2026 Company Breakdown

Key findings

• Pennsylvania ranks 6th nationally with 2,658,130 companies — 4.1% of all 64,799,929 U.S. companies in the directory.
• Philadelphia is the state’s largest business hub, with 433,497 companies — 16.3% of every company in Pennsylvania.
• Business is concentrated in a few metros: Philadelphia, Pittsburgh and Harrisburg together hold 25.1% of the state’s companies.
• Industrial & mechanical leads the state’s industries at 784,164 companies (29.5%), across 11 tracked sectors.

How Pennsylvania ranks nationally

Pennsylvania and its closest neighbours by total company count. Select a state to open its own study.

Top Pennsylvania cities by number of companies

These 10 cities account for 33.6% of all companies in Pennsylvania. Select any city to browse its full company list.

Browse all Pennsylvania companies →

Pennsylvania companies by industry

Every company is classified by its primary industry using NAICS/SIC codes. Select a sector to see those Pennsylvania companies.

What the numbers show

Pennsylvania’s 2,658,130 companies place it 6th nationally, 4.1% of the U.S. total. Activity clusters in its largest metros — Philadelphia, Pittsburgh and Harrisburg alone account for 25.1% of the state’s companies — while industrial & mechanical is the dominant sector at 29.5%. For buyers and sellers, that means the deepest pools of suppliers and manufacturers sit in a handful of cities and one or two sectors; the charts above link straight into each so you can shortlist by capability and region.

Methodology

Figures reflect companies listed in Factur’s U.S. business directory as of 2026, classified by headquarters city and primary industry using NAICS/SIC codes. “Companies” includes manufacturers, suppliers, and B2B businesses of all sizes; counts are directory totals, not official census figures, and percentages are computed against the Pennsylvania directory total. Data compiled by Factur, a sales and marketing firm for B2B manufacturers.