To choose the right digital marketing agency in Montréal in 2026, check three things before anything else: dated proof instead of promises, real command of both of Québec’s languages, and — the new criterion almost nobody measures — the ability to make your brand visible in AI answers, not just on Google. Serious retainers run roughly $500 to $10,000 a month; below that range you’re buying activity, not outcomes.
I run an agency in Montréal, so yes, this guide has a bias — and I’d rather tell you in the first line than perform neutrality. What follows is the checklist I’d hand a friend shopping for agencies, including against mine. If Crelong fails any of these tests in your evaluation, eliminate us too.
Which criteria actually predict a good agency engagement?
Three criteria predict success: verifiable dated proof, alignment between the agency’s specialty and your actual problem, and transparency about what went wrong before. Everything else — office size, awards from eight years ago, the beautiful deck — is decoration.
Ask for case studies with numbers and dates. Not “we grew traffic”: how much, over what period, from what baseline. An agency proud of its work publishes its numbers, small ones included — which is exactly why we publish ours as they come in. An agency showing only client logos is showing you its address book, not its results.
Then check specialty against need. An agency brilliant at e-commerce can be mediocre at B2B lead generation. The do-everything generalist dilutes its expertise — and, interestingly, the AI models can no longer even categorize it, as we measured in our five-AI test of Montréal agencies.
How much does a digital marketing agency cost in Montréal?
Agency fees in Montréal run from about $500 to $10,000 per month depending on scope, across three common structures: hourly, monthly retainer, or per-project. A digital marketing specialist here earns $50,000 to $70,000 a year — keep that number in mind when evaluating how many human hours an $800/month package can actually contain.
Structure matters as much as amount. Long-term retainers give engines time to compound — content and AI visibility build over quarters, not weeks. Short engagements test the relationship but cost more monthly and commit no one. And budget for the periphery: ad spend, content production, tools. An honest agency itemizes those before signature, not after.
What should you ask in an agency interview?
Ask questions with verifiable answers: show me a case like mine with the numbers; who will actually work on my account; how often do I get reports and what do they measure; and tell me about an engagement that went wrong.
That last question is the best filter I know. An agency claiming it has never failed is lying or new. The right answer describes the failure, the lesson, and what changed since — the same principle as the “honest limits” section in every article we publish. Credibility is built by admitting the edges of the map.
Then add the 2026 question: “How do you measure my visibility in ChatGPT, Claude and Gemini answers?” If the response is a blank look or vague talk about “AI in our processes,” you’ve just learned this agency optimizes for a results page your customers are abandoning. Run the 10-minute self-audit before the interview — you’ll know exactly what to ask.
Does a local Montréal agency really make a difference?
Yes — but not for the reason usually sold. The real local advantage is operational bilingualism: the Québec market searches, reads and buys in two languages, and French queries form a different corpus from English ones — in Google and in the AIs. An agency that translates after the fact misses half the market; an agency that thinks in FR and EN from strategy onward captures both.
It’s measurable in the work: see how a local trade becomes the only bilingual answer around L’Assomption — the file is public, dated, and shows exactly what “local” means when it’s done seriously.
The three moves before you sign
- Demand dated numbers: case studies with baselines, duration and results. No public numbers? Next candidate.
- Test the agency’s own AI visibility: ask ChatGPT who the good agencies are in their specialty. An agency invisible in AI answers is selling you an expertise it doesn’t apply to itself.
- Clarify the exit before the entrance: who owns the accounts, the data and the content if you leave? A confident agency makes the door easy to open — in both directions.
The honest limits
No selection checklist substitutes for a solid product or a working business model. And I’ll repeat it: this guide comes from a Montréal agency — validate every criterion against us too. If you’d rather start from neutral, measurable ground than anyone’s opinion, start with the data: the free AI Visibility Audit shows where your brand actually stands before you talk to anyone — us included.
WHERE THIS GOES
Ask an AI about your brand. We’ll wait. The audit is free, human-reviewed, and lands within 48 hours.
