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Top AI companies in Toronto

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

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

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

  1. 1
    Università di Trento· Trento, Trentino-Alto Adige, Italy
    • 3.4k employees
    • Founded 2007
  2. 2
    DECIEM | THE ABNORMAL BEAUTY COMPANY· Toronto, Ontario, Canada
    • undisclosed
    • 1.5k employees
    • Founded 2013
  3. 3
    Fondazione Bruno Kessler - FBK· Trento, Trentino-Alto Adige, Italy
    • 833 employees
    • Founded 1962
  4. 4
    Vector Institute· Toronto, Ontario, Canada
    • Grant
    • 590 employees
    • Founded 2017
  5. 5
    Fondazione Edmund Mach· Ronzone, Trentino-Alto Adige, Italy
    • 527 employees
  6. 6
    ICES· Toronto, Ontario, Canada
    • 435 employees
    • Founded 1992
  7. 7
    Ontario Institute for Cancer Research· Toronto, Ontario, Canada
    • 342 employees
    • Founded 2005
  8. 8
    RBC Borealis· Toronto, Ontario, Canada
    • 334 employees
    • Founded 2024
  9. 9
    BioPharma Services Inc.· North York, Ontario, Canada
    • 290 employees
    • Founded 2006
  10. 10
    CCRM· Toronto, Ontario, Canada
    • Corporate
    • 208 employees
    • Founded 2011
  11. 11
    University of Toronto Machine Intelligence Student Team (UTMIST)· Toronto, Ontario, Canada
    • 191 employees
    • Founded 2017
  12. 12
    Krembil Brain Institute· Toronto, Ontario, Canada
    • 152 employees
    • Founded 1998
  13. 13
    CIFAR· Toronto, Ontario, Canada
    • Grant
    • 130 employees
    • Founded 1982
  14. 14
    STEM Fellowship· Toronto, Ontario, Canada
    • 121 employees
    • Founded 2015
  15. 15
    Ipsos Public Affairs· Toronto, Ontario, Canada
    • 121 employees
    • Founded 1975
  16. 16
    UniTrento CIBIO· Trento, Trentino-Alto Adige, Italy
    • 110 employees
  17. 17
    C.D. Howe Institute· Toronto, Ontario, Canada
    • 107 employees
    • Founded 1958
  18. 18
    Deep Genomics· Toronto, Ontario, Canada
    • Series C
    • 106 employees
    • Founded 2014
  19. 19
    Heart and Stroke Foundation of Canada· Toronto, Ontario, Canada
    • 104 employees
  20. 20
    CIMeC UniTrento· Rovereto, Trentino-Alto Adige, Italy
    • 101 employees
    • Founded 2007
  21. 21
    Nucro-Technics Inc.· Scarborough, Ontario, Canada
    • 96 employees
  22. 22
    The Structural Genomics Consortium (SGC)· Toronto, Ontario, Canada
    • 86 employees
    • Founded 2003
  23. 23
    Acceleration Consortium· Toronto, Ontario, Canada
    • 79 employees
    • Founded 2021
  24. 24
    Research – Toronto Metropolitan University· Toronto, Ontario, Canada
    • 73 employees
    • Founded 1948
  25. 25
    Avicanna Inc. (TSX:AVCN)· Toronto, Ontario, Canada
    • Post-IPO equity
    • 72 employees
    • Founded 2016

Find engineers at AI companies in Toronto

Toronto 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 219 matching companies in our index, this is a good map of where the AI talent in Torontolives — useful whether you’re recruiting, partnering, or sizing a market.

The biggest AI companies in Toronto 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 Torontohiring senior staff” or “founders of AI companies in Torontowho 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 Toronto 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: Thu, 07 May 2026 06:03:26 GMT

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