Number of Pennsylvania companies appearing in the annual Inc. 5000 list of Fastest Growing Companies in America by industry (top industries in 2020 ranked by number of companies)

Comparison of the number of employees at foreign-owned companies (FOC) in Pennsylvania, Pennsylvania FOC employment as a percent of total employment, and Pennsylvania FOC employment as a percent of U.S. FOC Employment

The Inc. 5000 is an annually released list that tracks the 5,000 companies in the U.S. that are experiencing the highest revenue growth. Of those companies on the 2020 list, 188 are headquartered in PA.
The literature shows that high growth firms (defined as firms experiencing 20% or greater compound annual revenue grown over 3-years) are responsible for a significantly outsized contribution to economic growth and job creation. It also suggests that small, young, and knowledge-based firms are much more likely to achieve the levels of high growth seen on this list.
The Brookings Institute conducted an analysis and general endorsement of the list: https://www.brookings.edu/research/high-growth-firms-and-cities-in-the-us-an-analysis-of-the-inc-5000/

Data Source: INC 5000, Introducing the 5,000 Fastest-Growing Companies in America

This dataset contains counts of active business registrations in Pennsylvania and is broken down by County.

ALL active business registrations in the data to include: business corporations, nonprofit corporations, limited liability companies, limited partnerships, limited liability partnerships, limited liability limited partnerships, business trusts, land banks, municipal and other authorities.

**Due to statutory limitations in removing businesses no longer in operation from our database, this data shows a larger number of active businesses than currently exist.

Note: Previously titled Active Business Registrations Year 1768 – Current by County