Hartwell Electrical Contractors are electricians based in Witney, West Oxfordshire. They operate throughout Oxfordshire, Witney, Carterton, Brize Norton, Oxford and all parts of Oxfordshire. They cover everything from a simple light fitting change to complete installation of a new system and maintenance of the customer's existing one.

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.

Hawkeye Fire & Safety provide customers with the highest quality fire safety products and services at affordable prices. Their inventory includes a vast array of fire protection products and life safety items. They are also one of the largest fire and safety service providers in the State of Iowa.

Hayden-Systems has been providing fire alarm and security systems for commercial and residential properties since 1994. They pride themselves in providing design, installation, testing and inspection of municipal, commercial, institutional and residential fire alarm and security systems and providing superior customer service at all levels. They provide expertise and integrated system solutions for a wide range of commercial security needs.

Haynesville Fire Department is a Fire Department located in Haynesville, CLAIBORNE County, in the State of LA.

Haynesville Volunteer Fire Department is a full spectrum fire department, providing fire protection and fire safety services in the Haynesville region of the US State of Maine.

Hazelton Township Fire Department provides various rescue services and fire safety trainings and services to the 38 square mile township located in the Northeast corner of Shiawassee County.

The Hazleton Fire Department provides fire protection, prevention and emergency medical services to the City of Hazleton and surrounding communities.

HazSim® provides first responders and hazmat workers with hands-on, interactive, real-time simulations that mirror dangerous environments and improve the learning experience without the use of dangerous agents.

Since 1999, HE Paramotores specializes in the design and manufacture of ultralight engines. The engines manufactured in their factory are studied for the specific needs of the flight in Paramotor. They have facilities of more than 1.000 m² to 34 km southeast of Madrid, in Spain.

HE Simm is a renowned UK-based building automation, fire safety and security solutions company. They provide building automation, smart home, fire safety and technology solutions

Healey Fire Protection, Inc. strives to promote the use of, and be the pioneer recognized authority on, special hazard fire protection systems by employing existing and new technologies to save people, valuable assets and the environment. They provide Clean Agent Fire Suppression Systems, Fire Alarm, Optical Flame Fire Detection and Control Systems, High Sensitivity Smoke Detection, Water Mist Fire Suppression Systems and much more.

HSE is the national independent watchdog for work-related health, safety, and illness. The mission is to prevent death, injury, and ill health in Britain's workplaces. HSE is an independent regulator and acts in the public interest to reduce work-related death and serious injury across Great Britain’s workplaces.