Goods and Services Identification Number (GSIN)
A federal Canadian procurement classification code that identifies the category of goods or services being procured, used alongside NAICS to route tender notifications.
Definition
A Goods and Services Identification Number, abbreviated GSIN, is a hierarchical classification code used by Public Services and Procurement Canada to categorize goods and services in federal procurement. GSIN codes are organized into broad classes and specific sub-classes; janitorial and cleaning services fall under the S2 service class, with sub-codes for general cleaning, specialized cleaning, and related facility services. GSIN was the dominant federal classification before NAICS adoption became widespread and remains in use on CanadaBuys notices and historical contract data.
How it works in Canadian procurement
When PSPC or another federal department posts a tender on CanadaBuys, the notice includes one or more GSIN codes that describe the work. Vendors save their relevant GSIN codes in their CanadaBuys profile so that automated email alerts notify them when matching tenders are posted. Standing offers and supply arrangements are also indexed by GSIN, so vendors hunting for call-ups or pre-qualification opportunities will search by GSIN as well as NAICS. Cleaning vendors typically watch S205 (custodial services), S206 (specialized cleaning) and adjacent codes, plus the relevant NAICS code 561720. The combination of GSIN and NAICS gives buyers and vendors two parallel classifications, each useful for different filtering purposes.
Common confusions
GSIN and NAICS are sometimes used interchangeably but they are distinct systems. NAICS is the North American Industry Classification System, used statistically across Canada, the United States, and Mexico, and adopted by Statistics Canada for industry classification. GSIN is a Canadian-government-specific procurement classification developed before NAICS. Federal notices often carry both. Provincial and municipal buyers typically do not use GSIN; they rely on NAICS or their own internal commodity codes. A second source of confusion: GSIN codes look like product or service codes from the UN's UNSPSC system, but they are not the same and the codes do not map one-to-one.
Frequently asked questions
No. GSIN is a Canadian federal procurement classification. NAICS is the North American industry classification used statistically and by Statistics Canada. Federal cleaning tenders typically include both codes.
Public Services and Procurement Canada publishes the GSIN code list; CanadaBuys vendor profiles let you search and select relevant codes interactively.
Rarely. GSIN is a federal classification; provincial and municipal buyers usually use NAICS or their own internal commodity codes.
Related terms
- North American Industry Classification System (NAICS) — A standardized industry classification system used across Canada, the United States, and Mexico.
- CanadaBuys — The Government of Canada's central electronic tendering service for federal goods and services procurement, including most federal cleaning contracts.
- Standing Offer — A pre-arranged Canadian government procurement vehicle that lets buyers issue call-ups for cleaning services on demand, at pre-negotiated rates, without re-running a full RFP each time.
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