Maryland Number of Private Business Establishments in the NAICS 334513 Industrial process variable instruments Industry By County in 2025 Q3 (QCEW)

Updated on April 2, 2026.

According to data from the US Bureau of Labor Statistics, in 2025 Q3, Maryland had 27 number of private business establishments in the NAICS 334513 Industrial process variable instruments Industry. Among all Maryland counties, Baltimore had the highest number of private business establishments (3), followed by Montgomery (3), and Washington (3).

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.

Related Topics: Maryland BLS Topic List.

Data Source: US Bureau of Labor Statistics (QCEW).

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Maryland Number of Private Business Establishments in the NAICS 334513 Industrial process variable instruments Industry By County in 2025 Q3

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County	Number of Business Establishments
Allegany	1
Baltimore	3
Caroline	1
Carroll	1
Frederick	1
Harford	2
Howard	2
Montgomery	3
Prince George's	1
Queen Anne's	1
Washington	3
Worcester	1