September 2026

Top 5 smoke management companies in Japan

Of the 12 smoke management companies in Japan listed in the OpenFire directory in September 2026, these profiles were viewed most by people and AI assistants.

  1. #1

    Sanwa Shutter logo

    Sanwa Shutter

    Japan's largest maker of fire shutters, fire doorsets and steel building openings.

    Manufacturer 100+ people Est. 1956 1 office
    Fire door inspection & survey Fire door installation Fire doorset manufacture +1 more
    Tokyo, Tokyo View firm
  2. #2

    Bunka Shutter logo

    Bunka Shutter

    Fire shutters, fire doorsets and building materials, made and serviced in Japan.

    Manufacturer 100+ people Est. 1955 1 office
    Fire door inspection & survey Fire door installation Fire doorset manufacture +1 more
    Tokyo, Tokyo View firm
  3. #3

    Omata Shutter Industrial logo

    Omata Shutter Industrial

    Special and large-opening fire closures, built in Tokyo since 1945.

    Manufacturer 21–100 people Est. 1945 4 offices
    Fire door inspection & survey Fire door installation Fire doorset manufacture +1 more
    Tokyo, Tokyo · HQ View firm
  4. Joint #4

    Daiwa Shutter logo

    Daiwa Shutter

    Osaka maker of fire, smoke and fire-resistant screen shutters.

    Manufacturer 21–100 people Est. 1963 1 office
    Fire door inspection & survey Fire door installation Fire doorset manufacture +1 more
    Sakai, Osaka View firm
  5. Joint #4

    Toyo Shutter logo

    Toyo Shutter

    Listed maker of fire shutters, steel doorsets and disaster-prevention closures.

    Manufacturer 100+ people Est. 1955 1 office
    Fire door inspection & survey Fire door installation Fire doorset manufacture +1 more
    Osaka, Osaka View firm

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How the rankings work

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.