US Number of Private Business Establishments By State in the NAICS 541380 Testing laboratories Industry in 2025 Q1

Updated on April 2, 2026.

According to data from the US Bureau of Labor Statistics, in 2025 Q1, among all US states, California had the highest number of private business establishments in the NAICS 541380 Testing laboratories Industry (1,239), followed by Texas (1,071), and Florida (641).

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).

See this for other quarters:

US Number of Private Business Establishments By State in the NAICS 541380 Testing laboratories Industry in 2025 Q1

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US Number of Private Business Establishments By State in the NAICS 541380 Testing laboratories Industry in 2025 Q1

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State	Number of Business Establishments
Alabama	188
Alaska	42
Arizona	253
Arkansas	86
California	1239
Colorado	261
Connecticut	177
Delaware	64
Florida	641
Georgia	307
Hawaii	41
Idaho	134
Illinois	407
Indiana	259
Iowa	142
Kansas	115
Kentucky	191
Louisiana	267
Maine	49
Maryland	180
Massachusetts	229
Michigan	355
Minnesota	178
Mississippi	98
Missouri	203
Montana	58
Nebraska	59
Nevada	125
New Hampshire	69
New Jersey	352
New Mexico	89
New York	424
North Carolina	388
North Dakota	72
Ohio	448
Oklahoma	123
Oregon	162
Pennsylvania	446
Rhode Island	55
South Carolina	178
South Dakota	54
Tennessee	190
Texas	1071
Utah	152
Vermont	35
Virginia	243
Washington	245
West Virginia	74
Wisconsin	217
Wyoming	59