Where does the Ville de Montréal post its tenders?

On SEAO (seao.ca), the mandatory Quebec public-procurement platform. The Ville de Montréal, the agglomeration, the 19 boroughs, and city agencies like the STM all publish their notices and distribute their tender documents through SEAO. Browsing is free; a paid SEAO subscription is needed to download full documents and submit a bid.

Are the rules different for City of Montréal contracts?

The core Quebec requirements apply — an RBQ licence to do construction work, and bids in French — but the City of Montréal is subject to lower AMP (Autorité des marchés publics) authorization thresholds than the general provincial ones, so an authorization to contract can be required at smaller contract values. Always confirm the specific requirements in each tender's documents.

Do I need an RBQ licence to bid on Montréal construction work?

Yes. Quebec's Building Act requires any contractor carrying out construction work in the province to hold a licence in good standing from the Régie du bâtiment du Québec (RBQ), and that applies to Montréal municipal work like any other. Set it up well ahead of any deadline.

guidequebecmontrealseaoprocurementtenders

How to find and win government tenders in Montréal (2026)

Where the Ville de Montréal, its boroughs, the STM, and Quebec public buyers post construction tenders, how to bid through SEAO, and the Montréal-specific rules — including lower AMP thresholds — that contractors need to know.

By Joseph Morrison · Founder, Cornerstone Contracts

Published June 7, 2026·3 min read

Montréal is the largest municipal buyer in Quebec — water and sewer renewal, roads, transit, parks, and building renovation run continuously across the city and its 19 boroughs. The work is there. The challenge for a Montréal contractor is the same one every public bidder faces, plus a Quebec twist: everything runs through one French-language portal with its own eligibility rules.

Here's how Montréal public construction work gets posted, and how to put yourself in a position to win it.

Where Montréal posts its tenders

Like every Quebec public body, the Ville de Montréal publishes on SEAO — the Système électronique d'appel d'offres at seao.ca. That single platform carries the city's notices, the full tender documents, and the awarded-contract records.

In and around Montréal, several buyers post there:

The Ville de Montréal and the agglomeration — central services plus shared regional responsibilities.
The 19 boroughs (arrondissements), which procure a lot of local infrastructure and maintenance work in their own right.
The STM (Société de transport de Montréal) for transit facilities, garages, and stations.
Provincial and broader-public-sector buyers with projects in the city — the SQI, the health network, and education institutions — all on SEAO as well.

A single notice you spot on MERX usually points back to SEAO to actually bid.

How to register and bid

Browsing what's open on SEAO is free and needs no account. To download full documents and submit, you register an enterprise profile at seao.ca and take a paid subscription for the categories you serve. A few practical notes:

Bids are submitted electronically through SEAO before the closing time — paper submission is not the norm.
Quebec procurement is conducted in French: notices, documents, and your bid will be in French.
Register and pull documents early — the typical bid window is around 30 days, and Montréal posts move quickly.

The full provincial process — SEAO registration, RBQ, AMP, and the Revenu Québec attestation — is laid out in our guide to bidding on Quebec government contracts.

What it takes to win in Montréal

Eligibility comes first, and Montréal has two things worth flagging:

RBQ licence. Required for any construction work in Quebec, Montréal included. The Régie du bâtiment du Québec verifies competence, solvency, and financial probity — allow weeks.
Lower AMP thresholds. The Autorité des marchés publics authorization to contract is required at lower contract values for the City of Montréal than the general provincial thresholds, so it can apply to work that wouldn't trigger it elsewhere in Quebec. Check each tender's documents and hold the authorization by the bid-submission date.

Then the universal part: bonding and insurance sized to the project, and a complete, responsive, French-language submission. A non-conforming bid loses winnable work more often than price does — see why contractors lose government bids.

See what's open in Montréal now

You can browse the open tenders in Montréal right now — free, no account — and the full Quebec list alongside it.

That's the discovery half. The part that gives you mornings back is the filtering: Cornerstone Contracts scans Montréal's sources — SEAO, MERX, and the federal feed — every day, scores each posting against your trade, service area, and typical project size, and drafts a compliance-aware proposal for any tender you decide to pursue. Start free to see your matched Montréal opportunities in one feed.

Portal coverage, AMP thresholds, and access terms change. Confirm current details on SEAO, the RBQ, and the AMP before relying on them. Full French-language guidance is on our roadmap.