Securidoor (UK) Ltd was incorporated in England & Wales on 10 April 2007, its involved in providing security services in sectors like corporate, residential, retail etc. Apart from these, Securidoor is known for its door supervision, mobile patrolling, alarm response.

SecuriGroup is one of the UK’s leading security companies providing a wide range of security services including manned guarding, retail security, key holding, systems and event security. SecuriGroup Services Limited holds SIA approved contractor status for the provision of Door Supervision, Security Guarding, CCTV, Close Protection and Key Holding.

Securiscape provides regional and national governments with counter-terror and counter surveillance solutions. The company's portfolio includes barrier planters, steel security bollards, security steel furniture, and manual rise/fall blockout kerbs for vehicle disabling and stopping.

Originally founded in Bristol, UK, SECURIST began with an experienced team of individuals with a wide range of backgrounds from within the security industry. Over the course of their time as one of the leading security companies and establishments, they have built up a large client base with many contracts specializing in manned guarding and event security at the very core of their operations in the South West.

Securitas, a market leader in security, with over 280,000 employees, operating in 45 countries. The company offers a wide range of customers in a variety of industries and segments with services like guarding, mobile and monitoring, keyholding & alarm response (both commercial and domestic), mobile patrols, a locks and unlocks service for commercial premises and lone worker protection/escort services.

Securitec Systems is a Cannock, Staffordshire based company specializing in security equipment. These include CCTV systems, plus intruder alarms and intercom systems for personal and business uses.

Established since 1984, Security and Electrical Services has been providing seamless integration of all security requirements, tailored security solutions incorporating intruder alarms, CCTV and access control customized approach comprehensive servicing and support. The company offers access control solutions, such code only access control, proximity cards and readers, etc.

Security 1 is a company specializing in the design installation and servicing of high quality electronic Fire and Security Systems. Security 1 provides services in the following areas, intruder alarms, fire alarms, fire extinguishers, CCTV and access control.

Security 201 have been supplying and installing high quality security systems and products since 1983. Security 201 can design, install and maintain a range of security systems and products to exceptionally high standards.

Security 4 All is a UK website where you can buy the very best security products with confidence and at trade prices. Every single product has been carefully selected by industry professionals and undergone the most rigorous testing procedures to ensure it will live up to customers' expectations.

Security Access Systems Ltd is a UK based business, servicing the needs of the Security industry for over 15 years through the installation, maintenance and service of all types of automated systems for the domestic and commercial sectors. They supply and install sliding, single and double leaf gates, car parking systems, automated barriers, external and internal turnstiles.

Security Alert is a Midlands based company in Derby which formed in 1997. They are a privately owned British security and risk management company with substantial experience within the security industry.

Security Blue Team is a company producing high-quality community events, including CTFs, defensive security operations, and training labs. SBT also offers practical defensive cyber certifications, backed by an Academic Advisory Board comprised of industry experts.

BSides is a community-driven framework for building events for and by information security community members. The goal is to expand the spectrum of conversation beyond the traditional confines of space and time. It creates opportunities for individuals to both present and participate in an intimate atmosphere that encourages collaboration.

Security by Design is a London-based systems integrator. The company offers a wide range of security solutions including CCTV, access control, intruder alarms, information protection, burglary prevention, door entry systems, etc. for commercial and domestic clients. Security by Design provides services from concept through installation to after sales service, system takeover and maintenance.

Established in 1985, Security Centres is one of the largest privately owned fire and security companies in the UK. Security Centres are NSI Gold Accredited (National Security Inspectorate) for the design, installation and service of CCTV, Access Control, Fire and Intruder detection systems. The company offers a fully integrated package which includes, design, project management, installation, commissioning and maintenance.

Security Design Centre Ltd. is one of the UK’s leading specialist suppliers of standalone, integrated and networked security systems that includes intruder alarms, CCTV, access control and a wide range of physical security systems such as gates, barriers and turnstiles. The company's areas of expertise encompass risk and threat analysis, design, installation, emergency service and maintenance of large integrated systems