GSIN Code Lookup

Search the 141 most-used Goods and Services Identification Number (GSIN) codes for Canadian federal procurement. Free, no signup, instant results.

GSIN is the classification PSPC and CanadaBuys use to tag every federal tender. Pick the right code and your vendor profile starts surfacing the contracts that match.

What is a GSIN code?

A Goods and Services Identification Number (GSIN) is the classification code that Public Services and Procurement Canada (PSPC) uses to tag every good, service, or construction work the federal government buys. There are roughly 3,000 GSIN codes in the official list, organized as a single-letter prefix followed by three more characters for services (for example D302 — ADP information processing services, or R013 — IT and telecommunications professional services), and a four-digit number for goods (for example 5915 — filters and networks, or 6515 — medical and surgical instruments). Whenever a federal department posts a tender on CanadaBuys or its predecessor Buyandsell, it attaches one or more GSIN codes so vendors can find opportunities that match what they actually sell. Treat GSIN as the procurement equivalent of a SKU: the more accurately you map your offering to the right code, the fewer wrong-fit alerts you receive and the more relevant ones land in your inbox.

GSIN is sometimes confused with NAICS, but the two answer different questions. NAICS — the North American Industry Classification System — describes what kind of business you operate; it is built for statistics agencies like Statistics Canada and the U.S. Census Bureau, and it shows up in things like SAM.gov registration and small-business size standards. GSIN, by contrast, describes the specific good or service the buyer wants to procure, and it lives inside the procurement system itself. A custom-software development firm registered under NAICS 541511 (Custom Computer Programming Services) in both countries would use D308 (Programming services) and D307 (Automated information system design and integration) on its CanadaBuys vendor profile to receive matching federal tender alerts. Most procurement teams in Ottawa search and tag opportunities by GSIN first and only fall back to NAICS for trade-agreement coverage thresholds. If you sell to the federal government, GSIN is the classification that drives whether your business actually shows up in a buyer’s shortlist.

Using GSIN in practice is straightforward. Register a free Supplier account on CanadaBuys, open your vendor profile, and add the GSIN codes that map to what you sell — up to twenty or so is reasonable for most companies; do not bulk-add codes you cannot deliver against, because it dilutes the relevance of your alerts and erodes credibility with evaluators. CanadaBuys then uses those codes to drive your daily tender-notification email and to filter your search results. If you bid on standing offers or supply arrangements, the same GSIN codes determine which categories you are eligible to apply for. Pick three to five primary codes, two or three secondary, and review them once a year as your capabilities expand. If your industry spans multiple letter prefixes — an engineering firm, for instance, might cross R012 (engineering and technical), B505 (environmental assessments), and Y199 (construction of structures) — capture each one. To skip the manual checking, GovBid normalizes incoming CanadaBuys feeds against GSIN, NAICS, and free-text keywords at once, so a single industry profile catches opportunities tagged under any of your codes without you having to remember them all.

What is a GSIN code?

See live Canadian tenders by GSIN code