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Top Data infrastructure companies in Toronto

Databases, warehouses, lakes, pipelines, and observability for production data. Filtered to companies headquartered in Toronto.

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

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

  1. 1
    Thomson Reuters· Toronto, Ontario, Canada
    • 36.5k employees
  2. 2
    Wattpad· Toronto, Ontario, Canada
    • Series unknown
    • 4.7k employees
    • Founded 2006
  3. 3
    D+H· Toronto, Ontario, Canada
    • 4k employees
  4. 4
    Gpi Group· Trento, Trentino-Alto Adige, Italy
    • 3.3k employees
    • Founded 1988
  5. 5
    1Password· North York, Ontario, Canada
    • Secondary
    • 2.9k employees
    • Founded 2005
  6. 6
    Softchoice· Toronto, Ontario, Canada
    • Private equity
    • 2.8k employees
    • Founded 1989
  7. 7
    Dedagroup· Trento, Trentino-Alto Adige, Italy
    • 2.6k employees
    • Founded 2001
  8. 8
    PointClickCare· Toronto, Ontario, Canada
    • Secondary
    • 2.3k employees
    • Founded 2000
  9. 9
    Altus Group· Toronto, Ontario, Canada
    • 2.3k employees
    • Founded 2005
  10. 10
    Adastra· Toronto, Ontario, Canada
    • Grant
    • 1.7k employees
    • Founded 2000
  11. 11
    Procom· Toronto, Ontario, Canada
    • 1.3k employees
    • Founded 1978
  12. 12
    Achievers· Toronto, Ontario, Canada
    • Series C
    • 1.2k employees
    • Founded 2002
  13. 13
    CONTAX Inc.· Toronto, Ontario, Canada
    • 1.1k employees
    • Founded 1991
  14. 14
    Docebo· Toronto, Ontario, Canada
    • Post-IPO equity
    • 1k employees
    • Founded 2005
  15. 15
    Dye & Durham Corporation· Toronto, Ontario, Canada
    • Post-IPO debt
    • 964 employees
  16. 16
    CDW Canada· Etobicoke, Ontario, Canada
    • 931 employees
    • Founded 2003
  17. 17
    Cority· Toronto, Ontario, Canada
    • Series unknown
    • 852 employees
    • Founded 1985
  18. 18
    Cohere· Toronto, Ontario, Canada
    • Series D
    • 846 employees
    • Founded 2019
  19. 19
    Zafin· Toronto, Ontario, Canada
    • Series B
    • 843 employees
    • Founded 2002
  20. 20
    Tucows· Toronto, Ontario, Canada
    • Post-IPO debt
    • 807 employees
    • Founded 1993
  21. 21
    Teranet Inc.· Toronto, Ontario, Canada
    • 741 employees
    • Founded 1991
  22. 22
    Resolver, a Kroll Business· Toronto, Ontario, Canada
    • Secondary
    • 725 employees
    • Founded 2000
  23. 23
    BlueCat· North York, Ontario, Canada
    • Secondary
    • 697 employees
    • Founded 2001
  24. 24
    Vena Solutions· Toronto, Ontario, Canada
    • Debt
    • 691 employees
    • Founded 2011
  25. 25
    CMiC· North York, Ontario, Canada
    • 691 employees
    • Founded 1974

Find engineers at Data infrastructure companies in Toronto

Toronto has long been a hub for Data infrastructure, and the list above ranks the largest Data infrastructure companies headquartered there by current headcount, drawn from public LinkedIn and Crunchbase records. With 1,414 matching companies in our index, this is a good map of where the Data infrastructure talent in Torontolives — useful whether you’re recruiting, partnering, or sizing a market.

The biggest Data infrastructure 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 “Data infrastructure engineers in Torontohiring senior staff” or “founders of Data infrastructure 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 Data infrastructure 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 06:54:34 GMT

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