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October 2026

Top 5 fire engineering companies in France

Of the 14 fire engineering companies in France listed in the OpenFire directory in October 2026, these profiles were viewed most by people and AI assistants.

  1. #1

    E

    Efectis

    Fire and explosion safety experts — from the material to the structure.

    Consultancy 100+ people 8 offices
    CFD modelling Compartmentation Evacuation modelling +11 more
    Saint-Aubin, Île-de-France · HQ View company

  2. #2

    CA

    CSD & Associés

    France's leading fire-safety, security and SSI-coordination bureau d'études.

    Consultancy 21–100 people Est. 1994 4 offices
    CFD modelling Evacuation modelling Fire risk assessment +2 more
    Paris, Île-de-France · HQ View company

  3. #3

    OC

    ODZ Consultants

    Fire-safety engineering bureau d'études, part of the Egis group.

    Consultancy 21–100 people 3 offices
    CFD modelling Evacuation modelling Fire risk assessment +3 more
    Montigny-le-Bretonneux, Île-de-France · HQ View company

  4. Joint #4

    CA

    Casso & Associés

    Specialist fire-prevention engineering, founded by a Paris Fire Brigade commander.

    Consultancy 6–20 people Est. 1970 1 office
    Evacuation modelling Fire risk assessment Fire strategy +1 more
    Paris, Île-de-France View company

  5. Joint #4

    CI

    Cyrus Industrie

    Fire-safety and industrial-risk engineering bureau d'études.

    Consultancy 21–100 people Est. 2002 3 offices
    Compartmentation Fire risk assessment Fire strategy +2 more
    Haute-Goulaine, Pays de la Loire · HQ View company

Browse all fire safety companies in France →

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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