September 2026

Top 5 smoke management companies

Of the 282 smoke management companies listed in the OpenFire directory in September 2026, these profiles were viewed most by people and AI assistants.

  1. #1

    A400 - Projetistas e Consultores (Fire & Safety Department) logo

    A400 - Projetistas e Consultores (Fire & Safety Department)

    Green By Default

    Consultancy 100+ people Est. 1995 2 offices
    Alarm monitoring Car park ventilation CFD modelling +29 more
    Porto, Porto · HQ View firm
  2. #2

    Nacional Fire logo

    Nacional Fire

    Fire projects, AVCB licensing and installation across Brazil.

    Supplier 1–5 people Est. 2024 1 office
    Detection & suppression testing Alarm monitoring Building safety disputes +45 more
    São Paulo, São Paulo View firm
  3. #3

    Extincêndios - Equipamentos de Protecção e Segurança, S.A logo

    Extincêndios - Equipamentos de Protecção e Segurança, S.A

    ANEPC-registered for 7 SCIE categories, Lisboa.

    Installer 21–100 people 1 office
    Compartment walls & cavity barriers Emergency lighting Fire alarm systems +7 more
    Lisboa, Lisboa View firm
  4. Joint #4

    Cesco Products logo

    Cesco Products

    UL 555S life-safety dampers and AMCA-rated louvres.

    Manufacturer 21–100 people 1 office
    Mechanical smoke extract
    Wyalusing, Pennsylvania View firm
  5. Joint #4

    Veolia Portugal, S.A logo

    Veolia Portugal, S.A

    ANEPC-registered for 6 SCIE categories, Lisboa.

    Installer 21–100 people 1 office
    Compartment walls & cavity barriers Emergency lighting Fire doorset manufacture +6 more
    Lisboa, Lisboa 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.