H&A has a diverse and knowledgeable management team with years of experience in security, event and financial industries. Combined we have over 40 years knowledge within all sectors of the security industry. H&A Protection Services staff undergo regular personal and professional development to ensure their knowledge progression through such courses as University, Leadership Schemes and Upskilling.

Hack The Box is an online platform to test and advance one's skills in penetration testing and cyber security. and exchange ideas and methodologies with thousands of people in the security field. For companies, Hack The Box provides a wealth of information and experience for the security team.

Based in Wickford, Hadleigh Burglar Alarm Company not only offers reliable products but also excellent service and support in order to satisfy all the needs with regard to CCTV installation. Safety cannot be compromised and hence Hadleigh Burglar Alarm Company goes an extra mile to ensure quality products. The company deals in intruder alarms, access control, CCTV, and entry systme, and is NACOSS Gold approved.

Based in Sunderland, Hadrian Technology supply and install high quality CCTV systems across the UK and Ireland; for both commercial and domestic clients. With the very latest in surveillance technology, the companys mission is to give customer peace of mind. Hadrian Technologys HD CCTV systems give far greater definition or detail over standard surveillance systems.

Haes offers an extensive range, in-depth technical product knowledge and vast experience in helping plan and deliver small, medium and large-scale fire systems. They are a supplier and manufacturer of fire detection and alarm products. Haes also offers an integrated end-to-end solution tailored to the customer's specific fire detection and alarm system requirements.

Halifax Security has been making Yorkshire a safer place for over a quarter of a century, installing cutting-edge security technology and providing superior customer service in and around Halifax, Sowerby Bridge and the Calderdale area.

Halifax Security has been installing cutting-edge security technology and providing superior customer service in and around Halifax, Sowerby Bridge and the Calderdale area. The company provides instillation services of CCTV security system, burglar alarm, door entry and access control, security lighting, fire alarms, and smoke detectors. Halifax Security provides advice on how to protect premises with the latest security technology.

Hall & Kay Security Engineering is the UK’s largest fully accredited independent Integrated Security and Fire Suppression company with over 300 staff and 500+ approved subcontractors spread throughout the regions and across EMEA, offering advanced product technology, the highest standard of professional expertise and service to achieve engineering excellence every time.

Hardstaff Barriers, is a multi-award-winning manufacturer and supplier of protective barrier and perimeter security systems. They provide both temporary and permanent solutions. Their hostile vehicle mitigation systems (HVM), perimeter fencing, concrete security barriers and access gates are designed for one thing: to keep people and property safe.

Harling Security are experts in physical security solutions. The products provided by the company includes security gates, fencing, access control systems, barriers and turnstiles, fire shutters and curtains, security cages, security grilles, and many more.

Based in Northern Ireland, H.E.S. Alarms is a privately owned firm engaged in the installation and maintenance of domestic, industrial and commercial Intruder Alarm systems. The company is approved to the standards of 'BS EN ISO 9001:2008' and 'Quality Schedule SSQS 101 for the Installation and Maintenance of Electronic Security Systems including: Access Control, CCTV Systems and Intruder Alarms, and Fire Alarms.

Harmony is a global fire protection firm with integrated research and development capabilities.

Harper Chalice Group Limited's primary objectives are to design, develop, manufacture and supply electronic perimeter security systems. Harper Chalice Group produces a complete range of specialist electronic perimeter security systems to meet with all types of application requirements.

Harper Security Systems has a long-standing reputation as master craftsmen with experience in all types of security systems. Their specialized team undertakes work where they are needed.

Harris & Sandford Security specialize in the installation of effective home and commercial intruder alarms, closed circuit television, access control, fire alarms, personal emergency systems and much more. Located in Kent, the company's main objective has been to install and maintain high quality security installations. Harris & Sandford Security systems comply with the very latest European standards.

Founded in 1982, Harrison Locks offers alarm, access control and master key systems. Harrison Locks supply and fit a range of Codelocks Paxton keypads and keyfob systems. The company's access system is Corkey, which is a global access system and Harrison Locks are one of Corkey’s main 4 UK dealers.

Harvey Group’s core business is the design, development, installation, commissioning and maintenance of Mechanical and Electrical Building Services. Harvey Group provides servicing and maintenance for; Intruder alarm systems, Alarm monitoring, CCTV systems, Door access system, Roller shutter doors, barriers, fire alarm systems and much more.

Haven Fire Security Consultants offers full industry package of scheme design, supply, installation, commissioning and maintenance of security systems such as Intruder Systems, Gas Extinguishing, Emergency Lighting, Nurse Call, CCTV, Fire Extinguishing and Water Detection systems etc. Located in Wiltshire, the company has grown from these firmly established roots to be the largest fire alarm service company in the South.

Haven Security Ltd. designs, installs, update and maintain various security systems for commercial and domestic application. The company is a member of the National Security Inspectorate. Located in East Sussex, Haven Security Ltd. have over 25 years' experience in installing burglar alarms, remote monitoring, access control systems, and fire alarms etc.

Based in Stanford-le-Hope, Hawkwell Alarms work throughout Essex and London, providing homeowners and commercial businesses with the very best in alarm and security system installations. The company's extensive range of alarm system services includes Wireless alarm systems, CCTV, System monitoring, access control, fire detection, and security lighting. Hawkwell Alarms have achieved accreditation from NSI NACOSS Gold Approved.

HB Litherland are UK wholesale & trade electronics suppliers and distributors based in Blackpool, supplying AV, CCTV, Pro Audio & PA, & LED, LCD.

Established in 2011, HD Integrated Systems is based Sutton, Surrey. The company offers clients comprehensive electronic security solutions incorporating state-of-the-art CCTV, access control, intruder and perimeter Detection systems.

Heald Ltd design, manufacture and install a range of innovative hostile vehicle mitigation systems. An international company and family business, Heald is a world-class innovator in the field of perimeter security technology with products designed to help combat today's ever-increasing security threats.

Heason Technology is a UK based renowned supplier of Motion Control Products and Positioning Systems. They are also systems integrator and manufacturer of precision servo electric actuators, positioning systems and motion control solutions.

Heliguy is a drone company based in UK that provides a one-stop-shop for commercial operators across a range of industry verticals, including public safety, mining, agriculture, construction, inspections and media.

Helimedia is a specialist delivering Intelligence, Surveillance and Reconnaissance (ISR) equipment and consultancy in the military, public safety and security sectors. The company focuses on airborne surveillance and microwave communications systems as well as other core technologies such as Automatic Number Plate Recognition (ANPR), biometrics and mobile data applications for PDA’s.