The 60-second verdict
"Ontario Tenders Portal vs CanadaBuys" reads like a product comparison, but the two portals belong to different governments. The Ontario Tenders Portal is run by the province and CanadaBuys by the federal government, and the portal a tender lands on depends on who is paying for the work.
- Want Ontario ministry or provincial agency contracts? The Ontario Tenders Portal is your portal.
- Want federal contracts? CanadaBuys, even if the job is in Toronto, Ottawa, or Thunder Bay.
- Want hospitals, school boards, colleges, or cities? Neither portal is enough on its own. Those buyers are scattered across MERX, Biddingo, bids&tenders, SAP Ariba, and the Ontario Tenders Portal.
Scattered broader public sector posting is the main difference between Ontario and BC. In British Columbia, BC Bid carries most of the broader public sector. In Ontario, the provincial portal is one source among five, and an Ontario contractor who only watches it is working with a partial map.
Ontario Tenders Portal vs CanadaBuys at a glance
| Ontario Tenders Portal | CanadaBuys | |
|---|---|---|
| Run by | Supply Ontario (Government of Ontario), hosted by Jaggaer | Public Services and Procurement Canada (PSPC) |
| Covers | Ontario ministries, provincial agencies, and broader public sector entities that have adopted it | Federal departments and agencies |
| Typical buyers | Ontario ministries, Supply Ontario Vendor of Record programs, some hospitals, school boards, and agencies | PSPC, National Defence, RCMP, CRA, Shared Services Canada, and every other federal body |
| Cost | Free to register, download documents, and bid | Free |
| Account needed | Ontario Tenders Portal supplier registration | SAP Business Network account plus a CRA business number |
| Commodity codes | UNSPSC codes in your profile drive email alerts | UNSPSC categories in SAP Business Network, plus saved searches on CanadaBuys |
| Bid submission | Electronic, inside the portal, for opportunities hosted there | Per the notice, usually SAP Business Network |
| Domestic preference rules | Buy Ontario Procurement Directive (in force April 13, 2026) | Federal Buy Canadian policy for strategic procurements |
The "Covers" row causes the most confusion. In Ottawa alone, a federal building retrofit is posted on CanadaBuys, a Ministry of Transportation job on the Ontario Tenders Portal, and a school board roofing job possibly on Biddingo or bids&tenders.
What CanadaBuys covers in Ontario
Ontario gets an outsized share of federal spending because the National Capital Region sits on the Ontario side of the Ottawa River. Headquarters IT, consulting, facilities, and security contracts for dozens of federal departments are delivered in Ottawa. None of that appears on the Ontario Tenders Portal. If you are an Ottawa IT or professional services firm, CanadaBuys is your main source and the provincial portal is the side channel.
Searching CanadaBuys is free and needs no account. Bidding needs an SAP Business Network account and a CRA business number. As of July 2026 the old Supplier Registration Information (SRI) system is gone, so the registration steps many older guides describe no longer apply. We cover the current process in how to register to bid on CanadaBuys.
For services firms, a lot of federal work never becomes a public tender at all. It flows through supply arrangements like TBIPS and ProServices, which is its own entry path. See TBIPS, SBIPS, TSPS and ProServices explained if that is your market.
What the Ontario Tenders Portal covers
The core users are the Ontario Public Service: ministries and provincial agencies. Supply Ontario, the Crown agency created to centralize provincial purchasing, also runs its Vendor of Record (VOR) competitions through the portal. A VOR arrangement is Ontario's version of a federal standing offer or supply arrangement: you qualify once, then ministries buy from the pre-approved list. Recent VOR competitions have covered fleet management services and a province-wide primary care medical record system. If you want recurring ministry work, the VOR competitions are where it starts.
Broader public sector (BPS) entities can use the portal too. Ontario's BPS Procurement Directive requires hospitals, school boards, colleges, universities, and other designated BPS organizations to post open competitive procurements electronically, but it does not force them onto the provincial portal, and many of them post elsewhere.
You can browse notices without logging in, but you must register to download documents. Email alerts are driven by the UNSPSC codes in your company profile, and the portal's guidance states that suppliers who skip the UNSPSC step do not receive opportunity notices. UNSPSC is a different system from the NAICS codes many buyers ask for in bid forms. Our NAICS codes guide covers that side.
Road builders should also know that Ministry of Transportation highway construction has historically run through its own Registry, Appraisal and Qualification System (RAQS), which rates contractors on capacity before they can bid. If you do road work for MTO, check RAQS requirements directly rather than assuming the Ontario Tenders Portal is the whole story.
Found an Ontario tender but not sure it fits?
Paste the URL from any Ontario portal or CanadaBuys. BidFit reads the mandatory criteria, scope, and deadlines and gives you a fit verdict in 30 seconds.
Where Ontario hospitals, school boards, and cities actually post
Most Ontario public buyers outside the ministries post somewhere other than the provincial portal. The Canadian Free Trade Agreement secretariat publishes a summary of where each class of Ontario public buyer posts, simplified below.
| Buyer type | Where they commonly post |
|---|---|
| Ontario ministries and provincial agencies | Ontario Tenders Portal |
| Municipalities | bids&tenders, Biddingo, MERX, or the city's own system (the City of Toronto runs its bidding on SAP Ariba) |
| School boards | Biddingo, MERX, bids&tenders, plus OECM for collaborative sourcing |
| Colleges and universities | MERX, Biddingo, institution websites |
| Hospitals and health services | MERX, Biddingo, shared services organizations, some on the Ontario Tenders Portal |
| Crown corporations | MERX, SAP Ariba Discovery, own systems |
Use the table as a starting point, since individual buyers switch platforms every few years when their contracts come up. A more reliable method is to start from buyers: list the 10 to 20 public organizations you actually want as customers, find where each one posts today, and register on those platforms.
OECM is a not-for-profit sourcing partner for Ontario's education sector (and increasingly municipalities and other public bodies). It runs competitions that create supplier agreements, and school boards then buy from those agreements without running their own tender. If you sell to schools and you are not on an OECM agreement in your category, some of that work is simply not open to you.
For the full national list of portals, including bids&tenders and Biddingo, see how to find government tenders in Canada. For whether a paid MERX subscription is worth it on top of the free portals, see MERX vs CanadaBuys.
The 2026 Buy Ontario rules and what they mean for you
Ontario rewrote its domestic preference rules this year. On March 30, 2026, the province released procurement directives under the Buy Ontario Act (Public Sector Procurement), 2025. The provincial directive took effect April 13, 2026. It applies to ministries, provincial agencies, Ontario Power Generation, the IESO, and designated BPS organizations. It folds the earlier Building Ontario Businesses Initiative (BOBI) and the U.S. procurement restriction into one directive.
For government entities (ministries and agencies), the preference works in bands:
- Below $34,700 for goods or $139,000 for services: buyers prefer Ontario businesses.
- From those amounts up to $368,000: buyers prefer Canadian businesses.
- $368,000 and above: buyers apply weighted domestic criteria in evaluation, with Industrial Regional and Technology Benefit requirements on $50 million-plus procurements in specified sectors.
BPS organizations use somewhat different bands, so read the notice rather than assuming the ministry thresholds apply.
An Ontario business is one that operates on a permanent basis in Ontario and either has its headquarters in Ontario or has at least 250 full-time employees in Ontario at the time of the procurement. If you are an Ontario-headquartered SMB, you qualify on the first test and the smaller procurements now tilt toward you. That makes the low-dollar end of the Ontario Tenders Portal more attractive for local firms than it was two years ago.
The directive also restricts U.S. suppliers. A U.S. business for this purpose has its headquarters in the U.S. and fewer than 250 full-time employees in Canada. Those firms are restricted from provincial procurements, with narrow exceptions: sole viable source situations, and service contracts where the supplier commits at least 90 percent of delivery staff to Canada. If you are a Canadian subsidiary or partner of a U.S. company, check the definition before you spend a week on a bid.
Federal rules are separate. CanadaBuys procurements follow Ottawa's own policy on prioritizing Canadian suppliers, which uses a different definition. Qualifying under one does not automatically mean qualifying under the other.
The decision matrix: which portals you need
| If you... | Monitor |
|---|---|
| Sell to Ontario ministries or provincial agencies | Ontario Tenders Portal (primary), plus Supply Ontario VOR competitions |
| Sell to federal departments, especially in Ottawa | CanadaBuys (primary) |
| Do municipal work (roads, parks, facilities) | bids&tenders and Biddingo, plus the portals your target cities use |
| Sell to school boards, colleges, or hospitals | MERX, Biddingo, OECM, and the Ontario Tenders Portal |
| Want the widest Ontario public pipeline | All of the above, with alerts, and a buyer list to prune it |
For example, a Mississauga mechanical contractor doing school and hospital HVAC work should lead with Biddingo and MERX, keep bids&tenders for municipal facilities, and check the Ontario Tenders Portal weekly. CanadaBuys only matters if a federal building is in range.
An Ottawa cybersecurity consultancy has the opposite priorities, with CanadaBuys and the federal supply arrangements making up most of its pipeline. For that firm, an Ontario Tenders Portal alert for provincial IT VOR competitions is enough on the provincial side.
Whichever portals you pick, the bottleneck quickly becomes reading, not finding. Run anything promising through our 5-question bid/no-bid framework before committing estimating hours.
How to register on the Ontario Tenders Portal
Registration is free, takes most firms under an hour, and unlike BC Bid does not require a provincial digital ID first.
Step 1: Gather your details. Legal business name, address, main contact, and your CRA business number. Have your list of UNSPSC codes ready before you start.
Step 2: Register. Go to the Ontario Tenders Portal and choose "New Supplier? Register Now." Complete the organization and user sections and accept the terms. The portal links a Supplier Registration Instruction PDF from the login page if you want the screenshots.
Step 3: Add UNSPSC categories. Your categories decide which opportunity alerts you receive. A narrow list misses work and a broad one floods your inbox, so start with 5 to 15 codes that match what you deliver and adjust after a month.
Step 4: Add colleagues. Give your estimator or bid coordinator their own user. That way a bid due at 11 a.m. does not depend on one person's login.
Help. The Jaggaer help desk for the portal is toll-free at 1-866-722-7390, with supplier support requests available from the login page. For policy questions about selling to the province, Supply Ontario takes inquiries at doingbusiness@supplyontario.ca or 416-581-6318.
The setup most Ontario contractors end up with
- A written buyer list of the public organizations you want as customers, with the platform each one uses today.
- Ontario Tenders Portal registration with tight UNSPSC codes, for ministries, agencies, and VOR competitions.
- bids&tenders and Biddingo for municipal, school board, and health work.
- CanadaBuys saved searches if federal work is in scope, which it usually is for anyone in the Ottawa area.
- MERX only if your target buyers post there often enough to justify it.
Setting that up takes an afternoon. Contractors who treat the Ontario Tenders Portal as Ontario's equivalent of BC Bid tend to miss the school board and hospital work posted on other platforms, which is why the buyer list comes first.
If you do construction, finding the tender is step one of nine. Bonding, certifications like COR, and CCDC contract terms decide whether you can bid at all. The full sequence is in how to bid on government construction contracts in Canada.