Business Profiles
When you might need code 23821
Professions specific to this sector are linked to this part of the Canadian classifier so the page speaks to real work teams.
01
23821
General contractor
Use this page when the file covers multi-trade builds, bid packages, subcontract sequencing, and site delivery. It helps confirm whether 23821 Electrical contractors and other wiring installation contractors is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.
02
23821
Roofing project manager
Use this page when the file covers roofing crews, membrane installs, retrofit jobs, and envelope repairs. It helps confirm whether 23821 Electrical contractors and other wiring installation contractors is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.
03
23821
Concrete forming foreman
Use this page when the file covers foundations, formwork, pours, reinforcing schedules, and finishing crews. It helps confirm whether 23821 Electrical contractors and other wiring installation contractors is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.
04
23821
Electrical subcontractor
Use this page when the file covers electrical installs, panel work, commercial fit-outs, and service connections. It helps confirm whether 23821 Electrical contractors and other wiring installation contractors is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.