Official definition
This industry comprises establishments, not classified to any other industry, primarily engaged in specialized construction trades. The work performed may include new work, additions, alterations, maintenance, and repairs.
Industry
23899 All other specialty trade contractors
Tous les autres entrepreneurs spécialisés
Canadian industries
Next level
Fully clickable cards for the next layer in the hierarchy.
Official classification fields for this page
Official classification fields taken from the current StatCan source bundle.
| Characteristic | Description |
|---|---|
| Official title | All other specialty trade contractors |
| Classification | NAICS Canada 2022 Version 1.0 |
| Publishing authority | Statistics Canada |
| Hierarchical level | Industry |
| Parent code | 2389 - Other specialty trade contractors |
| International correspondence | ISIC Rev. 4; harmonized with US and Mexico NAICS at higher levels. |
| Source | https://www.statcan.gc.ca/en/subjects/standard/naics/2022/v1/index |
| Source verification | 2026-05-05 |
Canada-wide tax and filing context
Canada-wide business, tax, and filing context from the local country pack and tax pack.
| Characteristic | Description |
|---|---|
| Tax authority | Canada Revenue Agency (CRA) |
| Business identifier | Business Number (BN): 9-digit identifier with program account suffixes such as RT0001 for GST/HST, RP0001 for payroll, and RC0001 for corporate income tax. |
| Filing requirements | Business Number registration; Form T2125 (Statement of Business or Professional Activities) attached to T1; Form T2 (Corporation Income Tax Return); Form T5013; Form GST34 |
| Sector authority | Provincial workers' compensation boards and provincial trades certification bodies |
Classification Confidence Score
3 of 5 factors passing
6/ 10
Verified official source — naics-scian-2022-structure-v1-eng.csv (2026-05-05)
International crosswalk — No international correspondence found
Previous edition migration — NAICS 2017 to 2022 continuity confirmed
Complete hierarchy — 4 levels confirmed in hierarchy
Size or threshold documented — Not applicable for hub levels
Trade or export match — No direct HS code correspondence in current bundle
Legacy crosswalk — Legacy system (SIC 1980) retired in this region
Business Profiles
When you might need code 23899
Professions specific to this sector are linked to this part of the Canadian classifier so the page speaks to real work teams.
01
23899
General contractor
Use this page when the file covers multi-trade builds, bid packages, subcontract sequencing, and site delivery. It helps confirm whether 23899 All other specialty trade contractors is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.
02
23899
Roofing project manager
Use this page when the file covers roofing crews, membrane installs, retrofit jobs, and envelope repairs. It helps confirm whether 23899 All other specialty trade contractors is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.
03
23899
Concrete forming foreman
Use this page when the file covers foundations, formwork, pours, reinforcing schedules, and finishing crews. It helps confirm whether 23899 All other specialty trade contractors is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.
04
23899
Electrical subcontractor
Use this page when the file covers electrical installs, panel work, commercial fit-outs, and service connections. It helps confirm whether 23899 All other specialty trade contractors is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.
Business categories in this branch
A rotating set of business activity examples linked to this part of the Canadian hierarchy.
In this section
- 23891Site preparation contractors
- 23899All other specialty trade contractors
Source row
23899All other specialty trade contractors
This page mirrors the source row from the structure CSV and the matching rows from the elements and crosswalk files.
Frequently asked questions
What does code 23899 cover?
All other specialty trade contractors: This industry comprises establishments, not classified to any other industry, primarily engaged in specialized construction trades. The work performed may include new work, additions, alterations, maintenance, and repairs.
Which level of the hierarchy is 23899?
It is a industry page in the NAICS Canada 2026 hierarchy.
What is the parent of 23899?
It rolls up to 2389 Other specialty trade contractors.
Should I stop at 23899 or go lower?
1 lower-level item(s) sit under this branch: All other specialty trade contractors.
Are official inclusion notes attached to 23899?
No inclusion rows are attached to this page in the local elements file.
Are there exclusion notes for 23899?
No exclusion rows are attached to this page in the local elements file.
Does 23899 include illustrative examples?
No example rows are attached on this page in the local elements file.
What kinds of businesses often start from this page?
Examples in this branch include Civil works, Building trades, Renovation crews, Site preparation, Retrofit projects, Specialty contracting.
Is there an ISIC mapping for 23899?
No ISIC correspondence row is attached to this page.
Does this page show a US NAICS reference?
No same-code US NAICS reference row is attached on this page.
Why are both English and French titles shown?
NAICS Canada is bilingual, so the page keeps both language titles visible for comparison and lookup.
Where does the page text come from?
From the local StatCan structure file, elements file, ISIC crosswalk, and the bundled US 6-digit reference workbook.