Refolk
BlogSign in

Top AI companies in Canada

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

Built from a search like: “Top AI companies in Canada”

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

  1. 1
    National Research Council Canada / Conseil national de recherches Canada· Canada
    • 4.7k employees
    • Founded 1916
  2. 2
    Canadian Nuclear Laboratories· Chalk River, Ontario, Canada
    • 2.3k employees
    • Founded 2014
  3. 3
    Altasciences· Laval, Quebec, Canada
    • Series unknown
    • 1.9k employees
    • Founded 1995
  4. 4
    STEMCELL Technologies· Vancouver, British Columbia, Canada
    • Grant
    • 1.7k employees
    • Founded 1993
  5. 5
    DECIEM | THE ABNORMAL BEAUTY COMPANY· Toronto, Ontario, Canada
    • undisclosed
    • 1.5k employees
    • Founded 2013
  6. 6
    RI-MUHC | Research Institute of the MUHC | #rimuhc· Montreal, Quebec, Canada
    • 1k employees
  7. 7
    Ottawa Hospital Research Institute· Ottawa, Ontario, Canada
    • 935 employees
    • Founded 2001
  8. 8
    TRIUMF· Vancouver, British Columbia, Canada
    • Grant
    • 752 employees
    • Founded 1968
  9. 9
    CellCarta· Montreal, Quebec, Canada
    • 739 employees
    • Founded 2002
  10. 10
    Centre de recherche Azrieli du CHU Sainte-Justine· Montreal, Quebec, Canada
    • 646 employees
    • Founded 1974
  11. 11
    Researcher· Canada
    • 635 employees
  12. 12
    Everest Clinical Research· Markham, Ontario, Canada
    • Grant
    • 607 employees
    • Founded 2004
  13. 13
    Vector Institute· Toronto, Ontario, Canada
    • Grant
    • 590 employees
    • Founded 2017
  14. 14
    AbCellera· Vancouver, British Columbia, Canada
    • Grant
    • 579 employees
    • Founded 2012
  15. 15
    CSDCEO· L’Orignal, Ontario, Canada
    • 579 employees
    • Founded 1998
  16. 16
    BC Children's Hospital Research Institute· Vancouver, British Columbia, Canada
    • 556 employees
    • Founded 2002
  17. 17
    Mitacs· Vancouver, British Columbia, Canada
    • Grant
    • 556 employees
    • Founded 1999
  18. 18
    INO· Québec, Quebec, Canada
    • Grant
    • 527 employees
    • Founded 1988
  19. 19
    Semex· Guelph, Ontario, Canada
    • 525 employees
    • Founded 1997
  20. 20
    International Institute for Sustainable Development
    • Grant
    • 519 employees
    • Founded 1990
  21. 21
    Cégep Saint-Jean-sur-Richelieu· St-Jean-Sur-Richelieu, Quebec, Canada
    • 473 employees
    • Founded 1968
  22. 22
    Indero (formerly Innovaderm)· Montreal, Quebec, Canada
    • 465 employees
    • Founded 2000
  23. 23
    Institut de recherches cliniques de Montréal (IRCM) / Montreal Clinical Research Institute· Quebec, Canada
    • 436 employees
    • Founded 1967
  24. 24
    ICES· Toronto, Ontario, Canada
    • 435 employees
    • Founded 1992
  25. 25
    JSS Medical Research· Montreal, Quebec, Canada
    • Series unknown
    • 407 employees
    • Founded 1985

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 1,220 matching companies in our index, this is a good map of where the AI talent in Canadalives — 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 Canadahiring senior staff” or “founders of AI companies in Canadawho 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 once a day.

Last refreshed: Sat, 09 May 2026 09:43:46 GMT

Need an even more specific search?

Refolk runs natural-language searches across LinkedIn, GitHub, and the open web. Try one of these:

Related lists

See all company lists.

Or zoom out