Security guarding

Safeguard your workplace

Security officers are often deployed in retail environments, public access spaces or where particular threats have been recognised that could be mitigated by the presence of a uniformed officer. Whilst the role of a security officer varies depending on the client, it is fundamental to ensuring the smooth running of the organisation. Safety of customers, the general public and staff and protecting the property are key priorities.

It is also the security officer's job to observe the surroundings, working to prevent and discourage any disorderly behaviour or theft, and to report anything suspicious or potential threats to the Police.

NSI approved guarding companies have demonstrated compliance to BS 7499 the static guarding British Standard. They only deploy well trained, vetted, and SIA licensed security officers. Every NSI approved company offering a guarding service must ensure the SIA licences of their deployed staff are up to date. To obtain a licence the person must be at least 18 years old, pass an identity check and criminal record check.

For most security guarding roles the licence must be displayed at all times, so don’t hesitate to ask to see the licence if it is not visible. You can also check here to make sure the individual is registered.


NSI guarding companies are committed to:

At least twice yearly, independent, expert compliance audits

NSI Guarding Gold companies operate a Quality Management System

Screening every employee as required

Compliance with British and international standards including ISO 9001

The company you choose may be part of the SIA's Approved Contractor Scheme. This is increasingly becoming the minimum requirement for buyers of security services.

Learn more about security for your workplace

Keyholding and Alarm Response Services

Door Supervision

Event Stewarding

Transport of Cash and Valuables

Security Dog Handling Services

More About Security Systems

Learn more about fire safety for your workplace

More About Fire Safety

NSI Gold and Silver Medals - Signifying a companies approval with NSI

Look out for the NSI hallmark

It’s the most widely recognised mark of approval in security and
fire safety. NSI approval tells you the company is:


Technically Competent

Working to International and British Standards and NSI Codes of Practice, teams have relevant technical experience


Gold approval - operating a Quality Management System to ISO 9001 and NSI Quality Schedules


Reputable Directors & leaders with relevant business experience and effective employee security screening

Find an NSI approved company