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September 2026
Top 5 fire alarm and detection companies in Japan
Of the 13 fire alarm and detection companies in Japan listed in the OpenFire directory in September 2026, these profiles were viewed most by people and AI assistants.
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Joint #1
Aiphone
Communication and life-safety systems, Nagoya since 1948.
Manufacturer 100+ people Est. 1948 1 officeDetection equipment manufacture Fire alarm systemsNagoya, Aichi View firm -
Joint #1
Nittan
Smoke detection engineered in Japan since 1954.
Manufacturer 100+ people Est. 1954 1 officeDetection equipment manufacture Fire alarm systems Foam suppression +2 moreTokyo, Tokyo View firm -
#3
Nohmi Bosai
Total fire protection — detection, suppression and smoke control.
Manufacturer 100+ people Est. 1944 1 officeDetection equipment manufacture Fire alarm systems Foam suppression +3 moreTokyo, Tokyo View firm -
#4
Hochiki Corporation
Fire detection and alarm systems since 1918.
Manufacturer 100+ people Est. 1918 1 officeDetection equipment manufacture Fire alarm systems Foam suppression +2 moreTokyo, Tokyo View firm -
Joint #5
New Cosmos Electric
Gas sensing and residential fire detection.
Manufacturer 100+ people Est. 1960 1 officeDetection equipment manufacture Fire alarm systemsOsaka, Osaka View firm -
Joint #5
Secom
Japan's first security company — 24/7 alarm receiving and response.
Maintenance 100+ people Est. 1962 1 officeAlarm monitoring Fire alarm systemsTokyo, Tokyo View firm
Firms are ranked by how often their OpenFire directory profile was viewed during the calendar month, by people and by AI assistants. Search-engine crawlers, other automated traffic and link previews are not counted. Firms with equal views share a rank.
A firm with offices in several countries, or working across several categories, is ranked in each of them on the same monthly total. A ranking is only published where enough firms are listed and viewed for it to be meaningful.
A ranking reflects interest in a firm's listing. It is not an endorsement, and it is not a check of a firm's competence, certification or accreditation.