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Top AI companies in Canada

Companies building AI products, foundation models, and applied ML platforms. Filtered to companies headquartered in Canada.

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Built from a search like: Top AI companies in Canada

Ranked by current headcount across AI companies headquartered in Canada. Refreshed monthly.

  1. 1
    National Research Council Canada / Conseil national de recherches Canada· Canada

    The National Research Council of Canada (NRC) is the Government of Canada's largest research and technology organization. Working with our partners, we're delivering a national platform for innovation. We conduct research, support small and medium-sized companies to help them scale up and compete and we connect Canadian innovators to leading R&D capabilities. We also enable cross-sector partnership and collaboration here at home.Terms of use: https://nrc.canada.ca/en/corporate/contact-us/stay-connected*********************************************************Le Conseil national de recherches Canada (CNRC) est la plus grande organisation de recherche et de technologie du gouvernement du Canada. Nous fournissons, en collaboration avec nos partenaires, une plateforme nationale pour l'innovation. Nous faisons de la recherche, nous soutenons les PME pour les aider à prendre de l'expansion et à être concurrentielles. Nous mettons les innovateurs canadiens en contact avec des capacités de R D de pointe et favorisons également les partenariats et la collaboration intersectoriels ici au pays.Conditions d'utilisation : https://nrc.canada.ca/fr/organisation/contactez-nous/restez-branches

    • 4.7k employees
    • Founded 1916
  2. 2
    Canadian Nuclear Laboratories· Chalk River, Ontario, Canada

    Canada's premier nuclear science and technology organization.CNL develops peaceful and innovative applications from nuclear technology through its expertise in physics, metallurgy, chemistry, biology and engineering. Highly skilled employees enthusiastically deliver a range of nuclear services ranging from research and development, design and engineering to specialized technology, waste management and decommissioning.Canadian Nuclear Laboratories is actively working to strengthen existing relationships and forge new ones with government, with industry, and with academia.https://www.youtube.com/watch?v=3HWf13MTqFM

    • 2.3k employees
    • Founded 2014
  3. 3
    Altasciences· Laval, Quebec, Canada

    Outsourcing made easy with a one-stop solution to early-phase drug development. We are an integrated drug development solution company, offering pharmaceutical and biotechnology companies a proven, flexible approach that removes the need for multiple service providers during the early stages of drug development. Whether for one study or an end-to-end program, we help you reach critical decision-making milestones sooner by improving speed and ease from lead candidate selection to clinical proof of concept, and beyond. When partnering with Altasciences, you can experience up to 40% in time savings thanks to our integrated, one-stop solution offering. We strive to create a true partnership with our clients, our partners, and our colleagues that enables a mutually supporting relationship built on a combination of excellent science and solid communication. Helping sponsors get better drugs to the people who need them, faster, for over 30 years.Our full-service offering is always tailored to your specific research needs:-Preclinical research -Clinical pharmacology-Drug formulation -Manufacturing and analytical services -Bioanalysis -Program management -Medical writing -Biostatics -Data management -And so much more!

    • 1.9k employees
    • Founded 1995
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  5. 4
    DECIEM | THE ABNORMAL BEAUTY COMPANY· Toronto, Ontario, Canada

    We are a collective of disrupters and doers, of creatives and scientists, with a mission to reimagine the world of beauty. Founded and headquartered in Canada as an end-to-end beauty incubator, we have launched 15 brands to date and operate in over 59 countries. We listen to our community, and continue to look for opportunity everywhere, with people and planet in mind. We have a lot of ideas – we try, fail, and try again – and the best ones are built and bottled for you. Driven by our belief in transparency with our consumers, we’re rewriting beauty to be honest, accessible, and powerful enough to spark change.We were founded on the principle of doing everything that others don’t. Because normal gets you nowhere.We are DECIEM, The Abnormal Beauty Company.

    • undisclosed
    • 1.5k employees
    • Founded 2013
  6. 5
    RI-MUHC | Research Institute of the MUHC | #rimuhc· Montreal, Quebec, Canada

    The Research Institute of the McGill University Health Centre (The Institute)brings together pediatric and adult research programs, accelerating the translation of biomedical research to improve human health.

    • 1.1k employees

Find engineers at AI companies in Canada

Canada has long been a hub for AI, and the list above ranks the largest AI companies headquartered there by current headcount, drawn from public LinkedIn and Crunchbase records. With 927 matching companies in Refolk’s index, this is a good map of where the AI talent in Canada lives - useful whether you’re recruiting, partnering, or sizing a market.

The biggest AI companies in Canada tend to be the gravitational centres for specialised talent - senior engineers, ML researchers, applied scientists, designers - while the smaller ones compete on speed, equity, and proximity to founders.

Refolk converts this list into a live search. Ask for AI engineers in Canada hiring senior staff” or “founders of AI companies in Canada who left in the last 12 months” and Refolk returns a ranked shortlist with the evidence that earned each person a spot.

How this list is built

Refolk pulled AI companies headquartered in Canada from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 10 employees. The list refreshes monthly.

Last refreshed: Tue, 22 Sep 2026 01:20:30 GMT

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How is this ranking built?

The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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The underlying index updates continuously and this ranking is rebuilt monthly. Last refreshed: Tue, 22 Sep 2026 01:20:30 GMT. For a list built against the index as it stands today, sign up and run the search live.

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