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October 2026
Top 5 fire alarm and detection companies in Canada
Of the 23 fire alarm and detection companies in Canada listed in the OpenFire directory in October 2026, these profiles were viewed most by people and AI assistants.
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#1
Onyx-Fire Protection Services
National Canadian contractor, 1,200 staff across fifteen branches.
Contractor 100+ people Est. 1988 7 officesAlarm monitoring Emergency lighting Fire alarm systems +3 moreMississauga, Ontario · HQ View company -
#2
Classic Fire + Life Safety
Canadian-owned contractor with fourteen branches across five provinces.
Contractor 100+ people 6 officesAlarm monitoring Emergency lighting Fire alarm systems +2 moreToronto, Ontario · HQ View company -
#3
Mircom
Canada's largest independent maker of fire detection and alarm systems.
Manufacturer 100+ people Est. 1991 6 officesDetection equipment manufacture Emergency lighting Fire alarm systems +1 moreVaughan, Ontario · HQ View company -
#4
Troy Life & Fire Safety
Canadian-owned life-safety contractor, 28 offices and 399 sprinkler technicians.
Contractor 100+ people Est. 1929 8 officesAlarm monitoring Emergency lighting Fire alarm systems +4 moreOwen Sound, Ontario · HQ View company -
Joint #5
a.p.i. ALARM
ULC-certified monitoring station operating since 1983.
Contractor 100+ people Est. 1983 4 officesAlarm monitoring Fire alarm systemsToronto, Ontario · HQ View company -
Joint #5
Pro-Teck Securite
Greater Montreal annual inspections to CAN/ULC-S536 and S537.
Contractor 21–100 people 3 officesAlarm monitoring Fire alarm systemsLaval, Quebec · HQ View company
Browse all fire safety companies in Canada →
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.