US Number of Private Business Establishments By State in the NAICS 54138 Testing laboratories Industry in 2024 Q4

Updated on January 29, 2026.

According to data from the US Bureau of Labor Statistics, in 2024 Q4, among all US states, California had the highest number of private business establishments in the NAICS 54138 Testing laboratories Industry (1,222), followed by Texas (1,067), 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 54138 Testing laboratories Industry in 2024 Q4

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US Number of Private Business Establishments By State in the NAICS 54138 Testing laboratories Industry in 2024 Q4

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State	Number of Business Establishments
Alabama	185
Alaska	42
Arizona	247
Arkansas	84
California	1222
Colorado	259
Connecticut	179
Delaware	61
Florida	663
Georgia	312
Hawaii	41
Idaho	131
Illinois	436
Indiana	250
Iowa	144
Kansas	120
Kentucky	188
Louisiana	270
Maine	50
Maryland	173
Massachusetts	230
Michigan	338
Minnesota	175
Mississippi	103
Missouri	206
Montana	61
Nebraska	58
Nevada	120
New Hampshire	68
New Jersey	359
New Mexico	91
New York	431
North Carolina	415
North Dakota	71
Ohio	451
Oklahoma	124
Oregon	164
Pennsylvania	439
Rhode Island	53
South Carolina	176
South Dakota	56
Tennessee	202
Texas	1067
Utah	158
Vermont	33
Virginia	249
Washington	240
West Virginia	77
Wisconsin	218
Wyoming	64