Top Data infrastructure companies in Toronto
Databases, warehouses, lakes, pipelines, and observability for production data. Filtered to companies headquartered in Toronto.
- IndustryData infrastructure
- HQToronto
- Matches1,414
Built from a search like: “Top Data infrastructure companies in Toronto”
Ranked by current headcount across Data infrastructure companies headquartered in Toronto. Refreshed daily.
- 1Thomson Reuters· Toronto, Ontario, Canada
- 36.5k employees
- 2Wattpad· Toronto, Ontario, Canada
- Series unknown
- 4.7k employees
- Founded 2006
- 3D+H· Toronto, Ontario, Canada
- 4k employees
- 4Gpi Group· Trento, Trentino-Alto Adige, Italy
- 3.3k employees
- Founded 1988
- 51Password· North York, Ontario, Canada
- Secondary
- 2.9k employees
- Founded 2005
- 6Softchoice· Toronto, Ontario, Canada
- Private equity
- 2.8k employees
- Founded 1989
- 7Dedagroup· Trento, Trentino-Alto Adige, Italy
- 2.6k employees
- Founded 2001
- 8PointClickCare· Toronto, Ontario, Canada
- Secondary
- 2.3k employees
- Founded 2000
- 9Altus Group· Toronto, Ontario, Canada
- 2.3k employees
- Founded 2005
- 10Adastra· Toronto, Ontario, Canada
- Grant
- 1.7k employees
- Founded 2000
- 11Procom· Toronto, Ontario, Canada
- 1.3k employees
- Founded 1978
- 12Achievers· Toronto, Ontario, Canada
- Series C
- 1.2k employees
- Founded 2002
- 13CONTAX Inc.· Toronto, Ontario, Canada
- 1.1k employees
- Founded 1991
- 14Docebo· Toronto, Ontario, Canada
- Post-IPO equity
- 1k employees
- Founded 2005
- 15Dye & Durham Corporation· Toronto, Ontario, Canada
- Post-IPO debt
- 964 employees
- 16CDW Canada· Etobicoke, Ontario, Canada
- 931 employees
- Founded 2003
- 17Cority· Toronto, Ontario, Canada
- Series unknown
- 852 employees
- Founded 1985
- 18Cohere· Toronto, Ontario, Canada
- Series D
- 846 employees
- Founded 2019
- 19Zafin· Toronto, Ontario, Canada
- Series B
- 843 employees
- Founded 2002
- 20Tucows· Toronto, Ontario, Canada
- Post-IPO debt
- 807 employees
- Founded 1993
- 21Teranet Inc.· Toronto, Ontario, Canada
- 741 employees
- Founded 1991
- 22Resolver, a Kroll Business· Toronto, Ontario, Canada
- Secondary
- 725 employees
- Founded 2000
- 23BlueCat· North York, Ontario, Canada
- Secondary
- 697 employees
- Founded 2001
- 24Vena Solutions· Toronto, Ontario, Canada
- Debt
- 691 employees
- Founded 2011
- 25CMiC· 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
Last refreshed: Thu, 07 May 2026 06:54:34 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
- AI in Toronto
- SaaS in Toronto
- Data infrastructure in San Francisco
- AI in San Francisco
- SaaS in San Francisco
- Fintech in San Francisco
- Developer tools in San Francisco
- Cybersecurity in San Francisco
See all company lists.