October 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 October 2026, these profiles were viewed most by people and AI assistants.

  1. #1

    Nohmi Bosai logo

    Nohmi Bosai

    Total fire protection — detection, suppression and smoke control.

    Manufacturer 100+ people Est. 1944 1 office
    Detection equipment manufacture Fire alarm systems Foam suppression +3 more
    Tokyo, Tokyo View company
  2. Joint #2

    Hochiki Corporation logo

    Hochiki Corporation

    Fire detection and alarm systems since 1918.

    Manufacturer 100+ people Est. 1918 1 office
    Detection equipment manufacture Fire alarm systems Foam suppression +2 more
    Tokyo, Tokyo View company
  3. Joint #2

    Toshiba Lighting & Technology logo

    Toshiba Lighting & Technology

    Exit signs and emergency lighting for evacuation routes.

    Manufacturer 100+ people Est. 1989 1 office
    Emergency lighting Fire alarm systems
    Yokosuka, Kanagawa View company
  4. #4

    Central Security Patrols logo

    Central Security Patrols

    Security, crime prevention and fire monitoring since 1966.

    Maintenance 100+ people Est. 1966 1 office
    Alarm monitoring Fire alarm systems
    Tokyo, Tokyo View company
  5. #5

    Nittan logo

    Nittan

    Smoke detection engineered in Japan since 1954.

    Manufacturer 100+ people Est. 1954 1 office
    Detection equipment manufacture Fire alarm systems Foam suppression +2 more
    Tokyo, Tokyo View company

Browse all fire safety companies in Japan →

How the rankings work

Companies 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. Companies with equal views share a rank.

A company 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 companies are listed and viewed for it to be meaningful.

A ranking reflects interest in a company's listing. It is not an endorsement, and it is not a check of a company's competence, certification or accreditation.

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