MERX, CanadaBuys, and Provincial Portals: What Each One Is For

Canadian suppliers still ask which site is “the” government tender site. There is not one. Federal, provincial, and many municipal buyers use different systems. MERX is a commercial aggregator many teams grew up with. CanadaBuys is the federal official board. Provinces run their own. Understanding the split stops you from searching the wrong place — or thinking one login covers the country.

CanadaBuys — federal official

CanadaBuys is the Government of Canada’s solicitation portal (SAP Ariba). Register through SAP Business Network, download federal packages, and submit federal bids there. It does not replace Ontario Tenders, BC Bid, Alberta Purchasing Connection, or SEAO.

Provincial boards — where most regional work lives

MERX — commercial aggregation, not a government of Canada portal

MERX aggregates and redistributes opportunity information for a fee. It can be useful as a discovery habit, especially for teams that historically lived there. It is not the submission system for CanadaBuys federal bids, and it is not a substitute for reading the official notice on the issuing board. Always verify the source link and submit where the solicitation says to submit.

How Sidona fits without replacing official sites

Sidona indexes official sources into one workspace, matches notices to your company, and helps you read PDFs. You still bid on CanadaBuys, provincial portals, or SAM.gov. Think of MERX-era “one inbox” goals — with official-source indexing and document intelligence — not another place that pretends to file your bid.

• Use CanadaBuys for federal registration and submission
• Use the provincial board named in the notice for provincial work
• Treat aggregators as discovery aids; confirm on the official page
• Use one feed + matching if you sell across more than one board