Phaseone Security Services is fast becoming one of the leading security companies in the South East. We are mainly manned guarding specialists but can provide a range of Guarding Services, Mobile Services and Property Services to protect people, property and assets.

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24/7 security guard service for all types of guarding assignments.

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Patrol your premises in day, night or the weekend to check its secure.

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Phaseone take pride in serving some of the most prestigious businesses in the UK. We cover all types of sectors including construction, corporate, government, industrial, leisure, logistics, residential and retail.

Phaseone Secures 3-Year Contract with Sussex Coast College

Phaseone Security Services has secured a 3-year contract with Sussex Coast College "We are delighted [...]


2305, 2016

Why Outsource Key Holding?

Key holding is a security necessity for all businesses. If you have an alarm installed at your business, which does not inform anybody that the [...]

1205, 2016

Northern Ireland Terror Attack

Home Secretary Theresa May says an attack is now a "strong possibility" because of increased activity from dissident republicans. MI5 has raised the threat level [...]


Phaseone Security Services was formed in 2007 by our directors who wanted to put their skills and knowledge to the forefront of the security industry.

The company was focused on providing security services to small venues such as bars and clubs in the Sussex area. Due to our success we expanded our business and started to provide security guards, door supervisors, key holding and alarm response services to a range of prestige organizations.

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Phaseone provide security services to 100’s of businesses and residential premises across the United Kingdom.


Door supervisors are a necessity for any venue opening to the public.

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Protect large areas with our SIA licensed dog handlers /guard dog service.

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