SIA Approved Contractor Scheme (ACS) – A Way of Raising Standards in The UK’s Private Security Industry


SIA Approved Contractor Scheme (ACS) is a method used to raise standards and improve the quality of services provided in the United Kingdom’s private security industry. The Security Industry Authority (SIA), established under the Private Security Industry Act 2001, is the statutory regulatory body responsible for regulating the private security industry in the UK.

The primary goal of the ACS is to encourage security companies to adhere to high standards of professionalism, quality, and ethics. It does so by assessing private security providers against a set of rigorous criteria and benchmarks. Security companies that meet these criteria are awarded Approved Contractor status by the SIA.

Here’s How the ACS works:

Criteria and Assessment:

The SIA sets out specific criteria that security companies must meet to be eligible for ACS certification. These criteria cover various aspects of business operations, including management practices, staff training, quality control, customer service, and compliance with legal requirements.

Independent Assessment:

To achieve ACS certification, security companies must undergo an independent assessment carried out by an SIA-approved assessor. The assessor evaluates the company’s policies, procedures, and practices to determine if they meet the required standards.

Award of ACS Status:

If the security company meets the required standards, it is awarded Approved Contractor status by the SIA. This means that the company is considered reputable and compliant with industry best practices.

What are the Benefits of SIA ACS?

Becoming an SIA-approved contractor offers several benefits to the security company. It enhances the company’s reputation, makes it more attractive to clients, and increases its chances of winning contracts. ACS-certified companies are also eligible for certain business advantages when bidding for public sector security contracts.

Enhanced Reputation:

ACS certification is a mark of quality and professionalism within the private security industry. Being an approved contractor signals to clients that the company meets high standards of service delivery, management practices, and compliance.

Increased Business Opportunities:

ACS-approved contractors are more likely to win contracts and tenders, especially in the public sector. Many government organisations and large businesses prefer to work with approved contractors to ensure they are partnering with reputable and reliable security providers.

Competitive Edge:

ACS certification gives security companies a competitive advantage over non-approved competitors. It demonstrates that the company is committed to excellence, which can help it stand out in a crowded marketplace.

Compliance with Legislation:

ACS-approved contractors are more likely to be fully compliant with relevant legislation and industry regulations. This reduces the risk of legal issues and ensures that clients receive services that meet the required standards.

Improved Customer Confidence:

Clients often feel more confident working with an ACS-approved contractor, knowing that the company has undergone a rigorous assessment and meets industry best practices.

Access to Public Sector Contracts:

ACS-approved contractors are eligible to bid for certain public sector contracts that require security services. This opens up new business opportunities in areas like government buildings, transportation, and public events.

Professional Development:

The ACS encourages continuous improvement and professional development within the security company. Regular assessments and reviews prompt contractors to maintain high standards and keep their staff well-trained and up-to-date.

Monitoring and Review:

The ACS is not a one-time certification; it requires ongoing commitment from the security company. Approved contractors are subject to regular monitoring and periodic reassessment by the SIA to ensure they maintain the required standards.


By promoting professionalism and accountability within the private security industry, the ACS aims to improve overall service quality, protect clients and the public, and contribute to the reputation of the security sector as a whole.

ACS Consultants is a leading consultancy company. ACS Consultants has a team of experienced auditors who are knowledgeable about the latest trends and best practices. ACS Consultants work closely with organisations to understand their unique needs and develop customised solutions that meet their specific requirements.

Take the first step towards improving your organisations quality management and ensuring customer satisfaction by applying for SIA ACS certification with ACS Consultants today. Don’t wait for Apply now! and let our experts guide you through the process.