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NAICS to GSIN to UNSPSC crosswalk

Name: NAICS to GSIN to UNSPSC code crosswalk (Canada)
Creator: Wonable
License: https://wonable.io/terms

One industry, three classification systems. NAICS says what your business does, GSIN says what the government is buying, and UNSPSC is the global product and service code. NAICS codes here are authoritative; GSIN and UNSPSC are common examples to confirm on the official tools.

Search the industries Wonable covers below, then verify the exact code on the official sources.

Common examples, not the full taxonomy. These rows cover the industries Wonable focuses on, mapped at a deliberately honest level: NAICS codes are exact, GSIN is shown by category letter (with precise codes only where we back them with a live feed), and UNSPSC is at segment or family level. Always confirm the exact code on the official tools linked below before you use it on a bid.

Search by industry or code

Showing 9 of 9 common examples

Industry	NAICS authoritative	GSIN category	UNSPSC segment/family
Cleaning & janitorial live coverage, open tenders →	`561720`	`S202 / S210` Services, cleaning groups we publish	`76110000` family level
Landscaping & grounds common example, confirm on the official tools	`561730`	`S-series` Services category	`70111700` family level
Security guard services common example, confirm on the official tools	`561612`	`M-series` Guard/security services category	`92121500` family level
Building construction common example, confirm on the official tools	`236220`	`D-series` Construction category	`72120000` family level
Engineering services common example, confirm on the official tools	`541330`	`A-series` Architecture / engineering category	`81101500` family level
IT & software services common example, confirm on the official tools	`541510`	`D-series` Services category (IT/professional)	`81111800` family level
Waste management & environmental common example, confirm on the official tools	`562910`	`S-series` Services category	`76120000` family level
Office supplies common example, confirm on the official tools	`453210`	`N-series` Goods category	`44120000` family level
Furniture common example, confirm on the official tools	`337214`	`N-series` Goods category	`56100000` segment level

CanadaBuys commodity codes →

Look up the exact GSIN for a federal tender.

Statistics Canada NAICS →

The authoritative NAICS classification.

UNSPSC →

The official UNSPSC code search.

Guidance only. This crosswalk is a starting point for the industries Wonable covers, not a complete or official mapping. NAICS codes come from Statistics Canada; GSIN groups and UNSPSC codes shown at category or segment/family level are illustrative. Confirm the exact code on the CanadaBuys, Statistics Canada, and UNSPSC tools before relying on it for a bid.

Last verified 2026-06-27

Three systems, one piece of work

When you chase government contracts you run into three different code systems and it is easy to mix them up. NAICS, from Statistics Canada, classifies what your business does. GSIN, the federal Goods and Services Identification Number, classifies what the government is buying on a specific tender. UNSPSC is a global product and service taxonomy used in many catalogues and systems. A single piece of work, like building cleaning, has a place in all three, but the codes do not line up one to one.

Why this crosswalk is deliberately modest

It would be easy to publish a precise-looking code in every cell, and wrong to do it. So this tool is honest about what it knows. NAICS codes are authoritative. For GSIN we show the category letter and a label, and we only publish precise GSIN numbers where we already back them with a live tender feed, such as cleaning at S202 and S210. For UNSPSC we show segment or family level codes, the 8-digit codes ending in zeros, rather than pretending to a commodity-level precision we have not verified for every row. Every row is marked as a common example to confirm on the official tools.

How to confirm the exact code

Use this crosswalk to get to the right neighbourhood, then confirm the precise code at the source. For NAICS, use Statistics Canada. For GSIN, use the commodity-code search on CanadaBuys. For UNSPSC, use the UNSPSC code search. For the cleaning industry, where we have live coverage, you can also jump straight to the open tenders behind the GSIN groups.

Common questions

What is the difference between NAICS, GSIN, and UNSPSC?

NAICS is the North American Industry Classification System from Statistics Canada, which classifies what a business does. GSIN, the Goods and Services Identification Number, is how the Government of Canada classifies what it buys on a tender. UNSPSC is the United Nations Standard Products and Services Code, a global product and service taxonomy. The three overlap but are not identical, so one industry can map to several codes in each system.

Is this a complete code mapping?

No. This crosswalk covers the common procurement industries Wonable focuses on, and it is deliberately honest about precision. NAICS codes are authoritative. GSIN is shown by category letter with a short label, and we publish precise GSIN numbers only where we back them with a live tender feed. UNSPSC is shown at segment or family level. Always confirm the exact code on the official tools before using it on a bid.

Why does the GSIN column show a letter instead of a full code?

GSIN codes begin with a category letter, for example S for services, N for goods, and D for construction and architecture/engineering. We show the category letter and a label because we do not want to invent precise GSIN numbers we cannot back. Where we do have live coverage, such as cleaning at S202 and S210, we show the real codes. For everything else, confirm the exact code on CanadaBuys.

How do I find the exact code for my industry?

Use the official tools. For NAICS, use Statistics Canada. For GSIN, use the CanadaBuys commodity-code search. For UNSPSC, use the UNSPSC code search. This crosswalk points you to the right neighbourhood; the official tools confirm the precise code.

Is this code crosswalk free?

Yes, free and no signup. It is reference data to help you map an industry across the main procurement classification systems. Treat it as a starting point and confirm the exact codes on the official tools.

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