United States Number of Private Business Establishments in the NAICS 561621 Security systems services (except locksmiths) Industry

Updated on April 2, 2026.

According to data from the US Bureau of Labor Statistics, in 2025 Q3, the number of private business establishments in the naics 561621 security systems services (except locksmiths) industry in the United States was 11,357.

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

You can see similar information for different types of businesses establishments and industries.

Related Topics: US BLS Topic List.

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

US Number of Private Business Establishments in the NAICS 561621 Security systems services (except locksmiths) Industry

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Year Quarter	Number of Business Establishments
2023 Q1	10863
2023 Q2	10889
2023 Q3	10946
2023 Q4	11018
2024 Q1	11145
2024 Q2	11180
2024 Q3	11147
2024 Q4	11178
2025 Q1	11208
2025 Q2	11294
2025 Q3	11357