According to data from the US Bureau of Labor Statistics, in 2020 Q4, Massachusetts had 268,449 total number of business establishments in all industries. Among all Massachusetts counties, Middlesex had the highest total number of business establishments (58,167), followed by Essex (28,251), and Hampden (19,211).

The chart and table shows the number of business establishments for each county.

You can see similar information for other states, and for the United States.

You can see similar information for other industries.