Zenitel is a major player in instant audio and data communication. Key offerings include public address, radio and intercom, complemented by a wide range of supplementary systems. The company's in-house developed products are sold under the Vingtor-Stentofon brand, and are specially designed for use in situations that involve the protection of human lives and management of critical events.

ZENTEX BRANDSCHUTZ AG is a company recognized by authorities, industry and commerce in the field of stationary extinguishing systems. Their services for extinguishing systems include engineering, implementation planning and the construction of new systems, as well as adaptation work on existing systems and maintenance.

Zeroignition is an innovative fire protection technology company. They provide a systematic approach to fire prevention, working with the partners to design and create systems that prevent fire spread.

Zeta Alarms Ltd is an independent UK manufacturer of innovative fire alarm systems, gas detection, voice evacuation, disabled toilet alarms and much more. Their brand name Zeta Alarm Systems is well known throughout the industry and is acclaimed in over forty countries worldwide. They are currently represented in the UK, Europe, Africa, the Middle East, Southern Asia & South America and this list continues to grow.

Zicam is a national company based in the Midlands. Zicam has specialized in state-of-the-art surveillance and detection security systems for the past 20 years. All Zicam solutions are bespoke, whether completely integrated security systems or single alarms and can include 24/7 monitoring for total peace of mind.

Zurich Fire Brigade is generally run through so-called militia fire brigades, mainly used by individual councils and local areas. Although professional firefighter departments do exist in big cities like Geneva, most fire brigades are specific to each town. Emergency fire services can be reached by calling 118.