US Number of Private Business Establishments By State in the NAICS 541380 Testing laboratories Industry in 2025 Q3

Updated on April 2, 2026.

According to data from the US Bureau of Labor Statistics, in 2025 Q3, among all US states, California had the highest number of private business establishments in the NAICS 541380 Testing laboratories Industry (1,221), followed by Texas (1,082), and Florida (663).

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

You can see similar information for other industries and sectors.

Related Topics: US BLS Topic List.

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

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US Number of Private Business Establishments By State in the NAICS 541380 Testing laboratories Industry in 2025 Q3

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US Number of Private Business Establishments By State in the NAICS 541380 Testing laboratories Industry in 2025 Q3

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State	Number of Business Establishments
Alabama	192
Alaska	42
Arizona	243
Arkansas	90
California	1221
Colorado	268
Connecticut	181
Delaware	62
Florida	663
Georgia	311
Hawaii	42
Idaho	137
Illinois	418
Indiana	258
Iowa	134
Kansas	120
Kentucky	197
Louisiana	267
Maine	49
Maryland	176
Massachusetts	239
Michigan	359
Minnesota	179
Mississippi	99
Missouri	203
Montana	60
Nebraska	61
Nevada	126
New Hampshire	70
New Jersey	354
New Mexico	92
New York	426
North Carolina	402
North Dakota	80
Ohio	449
Oklahoma	127
Oregon	158
Pennsylvania	451
Rhode Island	56
South Carolina	163
South Dakota	56
Tennessee	190
Texas	1082
Utah	159
Vermont	34
Virginia	246
Washington	243
West Virginia	70
Wisconsin	223
Wyoming	58