In 2024, there were around 451,000 active Security Industry Authority (SIA) licence holders in the United Kingdom, compared with just under 235,000 in 2008. The SIA is the regulatory body responsible for the private security sector in the UK. Security Guards, CCTV operators, and Door Supervisors, among several other jobs, require workers to be hold an SIA licence.
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GOV.UK. (April 1, 2025). Number of active Security Industry Authority (SIA) licence holders in the United Kingdom from 2008 to 2025 (in 1,000s) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 29, 2026, from /statistics/1427481/uk-number-of-sia-licence-holders/
GOV.UK. "Number of active Security Industry Authority (SIA) licence holders in the United Kingdom from 2008 to 2025 (in 1,000s)." Chart. April 1, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 29, 2026. /statistics/1427481/uk-number-of-sia-licence-holders/
GOV.UK. (2025). Number of active Security Industry Authority (SIA) licence holders in the United Kingdom from 2008 to 2025 (in 1,000s). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 29, 2026. /statistics/1427481/uk-number-of-sia-licence-holders/
GOV.UK. "Number of Active Security Industry Authority (Sia) Licence Holders in The United Kingdom from 2008 to 2025 (in 1,000s)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 Apr 2025, /statistics/1427481/uk-number-of-sia-licence-holders/
GOV.UK, Number of active Security Industry Authority (SIA) licence holders in the United Kingdom from 2008 to 2025 (in 1,000s) ÌÇÐÄÆƽâ°æ, /statistics/1427481/uk-number-of-sia-licence-holders/ (last visited July 29, 2026)
Number of active Security Industry Authority (SIA) licence holders in the United Kingdom from 2008 to 2025 (in 1,000s) [Graph], GOV.UK, April 1, 2025. [Online]. Available: /statistics/1427481/uk-number-of-sia-licence-holders/
