Industry group

2371 Utility system construction

Construction d'installations de services publics

Official definition

This industry group comprises establishments primarily engaged in the construction of distribution lines and related buildings and structures for utilities (i.e., water, sewer, petroleum, gas, power, and communication). All structures (including buildings) that are integral parts of utility systems (e.g., storage tanks, pumping stations, power plants, and refineries) are included in this industry group.

Classification Reference

Official classification fields for this page

Official classification fields taken from the current StatCan source bundle.

Characteristic Description
Official titleUtility system construction
ClassificationNAICS Canada 2022 Version 1.0
Publishing authorityStatistics Canada
Hierarchical levelIndustry group
Parent code237 - Heavy and civil engineering construction
International correspondenceISIC Rev. 4; harmonized with US and Mexico NAICS at higher levels.
Sourcehttps://www.statcan.gc.ca/en/subjects/standard/naics/2022/v1/index
Source verification2026-07-17
Canada Business Context

Canada-wide tax and filing context

Canada-wide business, tax, and filing context from the local country pack and tax pack.

Characteristic Description
Tax authorityCanada Revenue Agency (CRA)
Business identifierBusiness 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 requirementsBusiness Number registration; Form T2125 (Statement of Business or Professional Activities) attached to T1; Form T2 (Corporation Income Tax Return); Form T5013; Form GST34
Sector authorityProvincial workers' compensation boards and provincial trades certification bodies

Classification Confidence Score

3 of 5 factors passing

6/ 10
Verified official sourcenaics-scian-2022-structure-v1-eng.csv (2026-07-17)
International crosswalkNo international correspondence found
Previous edition migrationNAICS 2017 to 2022 continuity confirmed
Complete hierarchy3 levels confirmed in hierarchy
Size or threshold documentedNot applicable for hub levels
Trade or export matchNo direct HS code correspondence in current bundle
Legacy crosswalkLegacy system (SIC 1980) retired in this region
Business Profiles

When you might need code 2371

Professions specific to this sector are linked to this part of the Canadian classifier so the page speaks to real work teams.

01 2371
General contractor

Use this page when the file covers multi-trade builds, bid packages, subcontract sequencing, and site delivery. It helps confirm whether 2371 Utility system construction is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.

02 2371
Roofing project manager

Use this page when the file covers roofing crews, membrane installs, retrofit jobs, and envelope repairs. It helps confirm whether 2371 Utility system construction is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.

03 2371
Concrete forming foreman

Use this page when the file covers foundations, formwork, pours, reinforcing schedules, and finishing crews. It helps confirm whether 2371 Utility system construction is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.

04 2371
Electrical subcontractor

Use this page when the file covers electrical installs, panel work, commercial fit-outs, and service connections. It helps confirm whether 2371 Utility system construction is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.

Business Map

Business categories in this branch

A rotating set of business activity examples linked to this part of the Canadian hierarchy.

Civil worksBuilding tradesRenovation crewsSite preparationRetrofit projects

Source row

2371Utility system construction

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 2371 cover?

Utility system construction: This industry group comprises establishments primarily engaged in the construction of distribution lines and related buildings and structures for utilities (i.e., water, sewer, petroleum, gas, power, and communication). All structures (including buildings) th...

Which level of the hierarchy is 2371?

It is a industry group page in the NAICS Canada 2026 hierarchy.

What is the parent of 2371?

It rolls up to 237 Heavy and civil engineering construction.

Should I stop at 2371 or go lower?

3 lower-level item(s) sit under this branch: Water and sewer line and related structures construction, Oil and gas pipeline and related structures construction, Power and communication line and related structures construction.

Are official inclusion notes attached to 2371?

No inclusion rows are attached to this page in the local elements file.

Are there exclusion notes for 2371?

No exclusion rows are attached to this page in the local elements file.

Does 2371 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.

Is there an ISIC mapping for 2371?

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.