Before you can win public work you usually have to get yourself onto the buyer's radar, and that is two separate things: registering as a supplier so the system can find you, and prequalifying so the owner will let you bid the bigger jobs. Registration is mostly free, mostly one-time admin, and it is how buyers reach you for the lower-dollar invitations they send out directly instead of advertising. Prequalification is a harder screen the owner runs on larger projects, where only contractors who pass the test get invited to tender. Getting both right opens the pipeline. For the certificates side of the qualification kit, read Prequalification and Clearances alongside this.
Federal registration: the chain that gets you found
To do business with the Government of Canada you build up a short chain of registrations, all free:
- CRA Business Number. The 9-digit number tied to your GST/HST account. Everything else hangs off it.
- Supplier Registration Information (SRI). Register at sri.canada.ca to receive a Procurement Business Number (PBN). Registration is free and stays open with no deadline.
- SAP Ariba. Most large construction contracts posted by Public Services and Procurement Canada (PSPC) route through SAP Ariba, so register there for the opportunities you want to chase.
Federal tenders themselves are posted on CanadaBuys (canadabuys.canada.ca), the official Government of Canada procurement service, which replaced the old Buyandsell.gc.ca site on 19 September 2022. CanadaBuys is the source of truth for federal work. MERX is a separate private aggregator, useful but not the official portal, so do not treat it as the place to register for federal procurement (see Where to Find Tenders).
Commodity codes are how buyers find you
When you register, you attach goods and services identification numbers, known as GSIN codes, that describe what you do. This matters more than most contractors realise. Below the advertising threshold, federal buyers often invite a short list directly rather than posting widely, and they build that list by searching the registry on commodity codes. Vague or missing codes mean you never get the invitation. Choose your codes carefully, keep them current, and add every code that genuinely fits your trade.
Provincial and municipal supplier lists
Each province and territory runs its own registration on its own free portal: BC Bid (with a BCeID), Alberta Purchasing Connection, SaskTenders, Manitoba through MERX, the Ontario Tenders Portal and Bids and Tenders for municipal work, Quebec's SEAO, and the territorial pages. Register where your buyers are rather than everywhere. Many municipalities and larger institutions also keep their own approved-vendor or vendor-of-record lists; getting on one can be the difference between being invited to quote and never hearing about the job at all.
What prequalification asks for
Prequalification (sometimes called a request for qualification, or RFPQ) screens contractors before they bid. Owners use it on larger or higher-risk projects so that only capable firms get to the tender stage. Even on open tenders, the same items are usually demanded inside the bid package, so assemble the kit once and keep it current:
- Workers' compensation clearance. A clearance certificate from your provincial board (the Workplace Safety and Insurance Board, or WSIB, in Ontario) confirming your account is active and your premiums are paid. It is province by province, so you need one from each board where you work.
- Insurance certificates. Commercial general liability, commonly $2 million per occurrence and $5 million or more on larger jobs, plus automobile liability where vehicles are used, with the owner named as an additional insured.
- Bonding capacity. Your single-project and aggregate bonding limits, backed by a letter from your surety broker. Building that capacity is a project of its own (see Bonding and Surety).
- Safety certification. A Certificate of Recognition (COR) from a provincial construction safety association, mandatory on a large share of Alberta public work and heavily weighted elsewhere.
- References and past performance. Most forms want three to five references from recent projects of similar scope and value, with a contact for the owner or consultant.
- Tax and registration standing. Good standing with the CRA and a valid Business Number, with GST/HST current. Quebec construction work generally also requires a licence from the Regie du batiment du Quebec, so confirm the current rule at the Regie before bidding in Quebec.
Federal integrity certification
For federal contracts you must certify compliance with the Government of Canada's Ineligibility and Suspension Policy, confirming that neither you nor your affiliates have been convicted of listed offences such as fraud, bid-rigging, bribery, tax evasion or labour and environmental offences. A conviction can mean debarment from federal procurement for years, and the public list of ineligible and suspended suppliers is posted on the federal procurement site. Read the certification before you sign it.
Build the package before you need it
The contractors who win are the ones who treat the registration and prequalification kit as a standing asset, not a last-minute scramble. Keep a folder with current certificates, your bonding letter, your reference list and your commodity codes, and diarise the renewal dates. When a tender lands with a tight deadline, you want to be assembling a bid, not chasing a clearance letter that takes days to issue.
Common mistakes
- Skipping the commodity codes. No codes, no direct invitations. This is the quiet reason a registered contractor still hears nothing.
- Registering everywhere. Register where your buyers actually are. A handful of well-chosen portals beats a scattergun.
- Letting a certificate lapse. A clearance or insurance gap on bid day is an automatic rejection on most public tenders.
- Assuming one clearance covers every province. Workers' compensation clearance is jurisdiction by jurisdiction.
- Leaving COR to the last minute. It takes months to earn and is mandatory on a lot of Alberta work.
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