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.

Harris County Universal Services is the solutions center for the departments and offices of Harris County. It designs, implements and maintains high-quality, innovative and cost-effective technology products and services for its customers. It provides comprehensive support through divisions: Business Applications, Business Operations, Customer Service, Cybersecurity, Fleet Services, Information Technology Infrastructure, Public Safety Technology.

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 (HavenLock, Inc.) are globally renowned providers of preventative access control technology that protects commercial clients, their people and what they value by enhancing safety protocols. HAVEN was founded by former members of the military and law enforcement. They know what real danger is and have created rock solid defence systems like HAVEN Lockdown to put an end to active violence in our schools, places of worship, and offices.

Haventec has developed a patented platform that provides enterprises with the means of safeguarding the privacy of the people they both serve and employ – if sensitive information (data and digital credentials) is protected by the Haventec platform when the enterprise or its cloud is breached, there is nothing of value to steal.

HAWK Security Services has a top performing record in its field, due to the continuous training of its hand-picked staff and the excellence of its services and products.

HazTek Safety Management is the largest and most diverse team of full-time safety experts in North America. As a provider of comprehensive safety management services, they manage worksite safety and health for many of the nation’s largest and most respected construction management firms and general contractors — partnering with companies to create fully customized programs.

SEPKY is a non-profit trade association that focuses on all matters related to the Greek Defence Industry. SEKPY assists international defence contractors, overseas military procurement agencies and government departments to meet their co-operation requirements with Greek Defence Manufacturers.

HENSOLDT Avionics GmbH is a renowned manufacturer of Situational Awareness and Mission Management Systems, designs, produces and markets certified avionic systems that interface with a wide range of third-party avionics and sensors. Their high-end products are in use worldwide, characterised by their flexibility and their modular concept.

Heraeus Noblelight counts itself among the market and technology leaders worldwide for specialty light sources with wavelengths from ultraviolet to infrared for industrial, scientific, and medical applications.

For more than 45 years, Herley Industries has been supplying solid, innovative, and sophisticated RF, microwave and millimeter wave components and subsystems to the defense and aerospace industries. Evolving from a component supplier to a systems provider, Herley works with prime contractors, global governments and militaries, to provide a range of solutions for radars, flight instrumentation, weapons sensors, and guidance systems.

Herman is a provider of AV products, procurement services and technical labour resources to systems integrators in the commercial AV industry. They offer highly skilled technical labour, engineering and CAD, programming, and service offerings on a national level, as well as a value-add online maintenance portal for easy management.

Hermitage Solutions is a value-added distributor of cybersecurity and innovative infrastructure solutions that provide IT security products and services for SMB and enterprises.

Herongrange Group Limited offer a comprehensive service to determine the best solution for specific security requirements. They take care of the design, installation and maintenance of security services, offering solutions to every market sector.

HeroQuip is a specialist UK supplier of workwear and PPE to the emergency services including Ambulance, Fire and Rescue, Police and Prisons. Located in Knaresborough, North Yorkshire, HeroQuip understand the risks involved and the need for workwear and PPE that has been specifically designed for these organisations.

HES is the leading manufacturer of electric strikes, electric strike accessories and cabinet locks. Known for quality and service, we develop innovative access control solutions and work to earn long-term relationships with distributors and installers. Based out of Phoenix, they offer premium customer care and ease of doing business. Other Brands based in Phoenix include Adams Rite, Alarm Controls, Securitron and LifeSafety Power.

Specialist close protection services Bodygaurd Personal escort Protection driver Surveillance

Hexagon's Safety, Infrastructure & Geospatial division improves the resilience and sustainability of the world's critical services and infrastructure. Our technologies transform complex data about people, places and assets into meaningful information and capabilities for better, faster decision-making in public safety, utilities, defense, transportation and government.

Hexagon is a global pioneer in digital reality solutions, combining sensor, software, and autonomous technologies. It is putting data to work to boost efficiency, productivity, quality, and safety across industrial, manufacturing, infrastructure, public sector, and mobility applications. Hexagon’s Geosystems division provides a comprehensive portfolio of digital solutions that capture, measure, and visualise the physical world.

Hexnode UEM is an industry-pioneer endpoint management solution that offers a rich set of features aimed at securing, managing, and remotely monitoring devices within the enterprise. Evolving to accommodate the latest technologies and industry trends, Hexnode serves businesses of all sizes, from start-ups to Fortune 100 companies, with the best business mobility experience.

Vacant properties can be vulnerable to all kinds of unwanted attention, from mindless vandalism to illegal occupation, and might be unoccupied for any number of reasons. HG Security Ltd's unique on-site security solution will protect property and save the potential cost of remedial works by deterring any unwanted visitors. Their system is proven and effective, guarding properties all over the UK since 1992.

Hiatt Hardware is a pioneering distributor of DIY hardware products for the UK and European markets. Hiatt Hardware operates from a DC location in Birmingham. Hiatt Hardware aims to open up a trading channel to the consumer market with a limited range of Door Handles, Hat and Coat Hook Rails, and Cabinet Knobs and Handles.

Hicomply is the compliance automation platform built for fast-growing businesses that want to crush audits, unlock revenue, and stay ahead of risk -without the stress.

HDD provides solutions for defence, corporate and mass market encryption purposes by offering self-encrypting hard disk drives - including the patented Encryption Module (CM) - in USB, HDD and SSD based configurations. HDD also offers a Key Management System (KMS) to allow organisations to effectively manage and administer their Smart Cards (contact or contactless storing the various AES 256 bit encryption keys.

High Frequency aims to be the long-term partner in RFID implementation, development, training, and ongoing support.

HighCom Security Services is a comprehensive provider of high-end security solutions, which specialises in protective services, security systems, consulting and training.

Higher Height Institute of Information Tech provides cyber security online courses.

Hill & Smith Holdings PLC is an international group with pioneer positions in the design, manufacture and supply of infrastructure products, galvanizing services and building and construction products to global markets. It serves its customers from facilities principally in the UK, France, USA, Thailand and China.