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September 2026
Top 5 passive fire protection companies in Switzerland
Of the 34 passive fire protection companies in Switzerland listed in the OpenFire directory in September 2026, these profiles were viewed most by people and AI assistants.
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#1
Merz & Benteli
Swiss adhesives and sealants, with VKF-approved fire joints.
Manufacturer 21–100 people 1 officeFirestopping PFP product manufactureNiederwangen, Bern View firm -
Joint #2
AGI AG für Isolierungen
Swiss insulation contractor with 24 firestopping approvals in its own name.
Contractor 100+ people 1 officeFirestopping Structural fire protectionDällikon, Zürich View firm -
Joint #2
Sika Schweiz
Swiss construction chemicals, with VKF-approved concrete fire systems.
Manufacturer 100+ people 1 officeFirestopping PFP product manufacture Structural fire protectionZürich, Zürich View firm -
#4
Hilti (Schweiz)
Switzerland's largest holder of VKF firestopping approvals.
Manufacturer 100+ people 1 officeFirestopping PFP product manufactureAdliswil, Zürich View firm -
Joint #5
AGRO
Cable-entry and installation systems with VKF firestop approvals.
Manufacturer 100+ people 1 officeFirestopping PFP product manufactureHunzenschwil, Aargau View firm -
Joint #5
Allchemet
Construction chemicals with a VKF-approved fire joint sealant.
Manufacturer 6–20 people 1 officeFirestoppingLuzern, Luzern View firm
Browse all firms in Switzerland →
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.