Official definition
This Canadian industry comprises establishments primarily engaged in providing investigation and detective services.
Official classification fields for this page
Official classification fields taken from the current StatCan source bundle.
| Characteristic | Description |
|---|---|
| Official title | Investigation services |
| Classification | NAICS Canada 2022 Version 1.0 |
| Publishing authority | Statistics Canada |
| Hierarchical level | Canadian industry |
| Parent code | 56161 - Investigation, guard and armoured car services |
| International correspondence | N8030* |
| 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 | No cluster authority recorded in the local country pack. |
Exclusions
- providing credit reporting services (See 561450 Credit bureaus)
Examples
- detective agencies
- fingerprint services
- lie detection service
- missing person tracing service
- polygraph service
- skip tracers services
- criminal record checks and searches
- detective agencies
- fingerprint services
- investigation services (except credit)
- lie detection service
- missing person tracing service
- polygraph service
- private detectives services
- private investigation services
- reference check services
- skip tracers services
Who is this code for
This code typically applies to:
Also relevant for
detective agenciesfingerprint serviceslie detection servicemissing person tracing servicepolygraph service
Source: STATCAN_TITLE, 2026-05-05
Classification Confidence Score
5 of 6 factors passing
8/ 10
Verified official source — naics-scian-2022-structure-v1-eng.csv (2026-05-05)
International crosswalk — ISIC Rev. 4 mapping: N8030*
Previous edition migration — NAICS 2017 to 2022 continuity confirmed
Complete hierarchy — 5 levels confirmed in hierarchy
Size or threshold documented — SME thresholds documented in federal tax pack
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 561611
These role examples come from the official title and example wording attached to this code.
01
561611
Investigation services
Use this page when the business is directly described by the official title or definition for 561611 Investigation services. It is the closest source-backed checkpoint before BN registration, GST/HST review, banking onboarding, or internal classification work.
02
561611
detective agencies
Use this page when the activity is described in the official StatCan example wording as detective agencies. Compare the definition, exclusions, and nearby codes here before attaching 561611 Investigation services to a business file.
03
561611
fingerprint services
Use this page when the activity is described in the official StatCan example wording as fingerprint services. Compare the definition, exclusions, and nearby codes here before attaching 561611 Investigation services to a business file.
04
561611
lie detection service
Use this page when the activity is described in the official StatCan example wording as lie detection service. Compare the definition, exclusions, and nearby codes here before attaching 561611 Investigation services to a business file.
Business categories in this branch
A rotating set of business activity examples linked to this part of the Canadian hierarchy.
In this section
- 561611Investigation services
- 561612Security guard and patrol services
- 561613Armoured car services
Commonly confused with
561450 — Credit bureaus
providing credit reporting services (See 561450 Credit bureaus)
ISIC Rev. 4 correspondence
N8030*Investigation activities
Approximate correspondence
Private investigator and detective services
US NAICS reference561611 - Investigation and Personal Background Check Services
Source row
561611Investigation services
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 561611 cover?
Investigation services: This Canadian industry comprises establishments primarily engaged in providing investigation and detective services.
Which level of the hierarchy is 561611?
It is a canadian industry page in the NAICS Canada 2026 hierarchy.
What is the parent of 561611?
It rolls up to 56161 Investigation, guard and armoured car services.
Should I stop at 561611 or go lower?
This page already points to the exact six-digit Canadian industry in the current site structure.
Are official inclusion notes attached to 561611?
No inclusion rows are attached to this page in the local elements file.
Are there exclusion notes for 561611?
Yes. 1 exclusion note(s) help separate this page from nearby codes.
Does 561611 include illustrative examples?
Yes. 17 example row(s) are available for boundary checking.
What kinds of businesses often start from this page?
Examples in this branch include Gas supply, Water systems, Power distribution, Utility maintenance.
Is there an ISIC mapping for 561611?
Yes. The page shows N8030* Investigation activities.
Does this page show a US NAICS reference?
Yes. A same-code US reference is attached: Investigation and Personal Background Check Services.
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.