Cybersecurity Companies in Ontario: Ranked Lists by City (2026)
84 cities with a ranked listUpdated 0 paid placements in any rankingHow we rank →
We rank cybersecurity companies in 84 Ontario cities, 20,392 city rankings in all. The largest lists are Ancaster (396), Hamilton (394) and Toronto (391).
Cybersecurity companies by city in Ontario
Every Ontario city with a ranked list of cybersecurity companies, largest first. Each list ranks IT firms within 121 km of the city.
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
Highest IFR Scores among Ontario cybersecurity companies
Each score is computed within its own city list, so use the city pages to compare businesses. Shown for orientation, not as a state ranking.
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
| # | IT firm | IFR Score | City list | Google rating |
|---|---|---|---|---|
| 1 | ACN TECHNOLOGY | 68 | #1 in Brampton | 4.9★ (322) |
| 2 | CyberNexGuard | 67 | #1 in Port Colborne | 4.7★ (755) |
| 3 | Canary Trap | 67 | #2 in Mississauga | 5.0★ (81) |
| 4 | OEIS - Digital Forensics | 66 | #1 in Niagara Falls | 4.5★ (187) |
| 5 | Certified Nerds | 66 | #1 in Pickering | 5.0★ (74) |
| 6 | Ferro Technics Inc.| Cyber Security Consulting and Training Services | 66 | #2 in East York | 4.9★ (136) |
| 7 | Synchroworks Consulting | 65 | #3 in Brampton | 4.9★ (56) |
| 8 | Rhyno Cyber Security Services | 65 | #2 in Kitchener | 5.0★ (40) |
| 9 | IT Z | 64 | #2 in Ancaster | 5.0★ (33) |
| 10 | Plutosec Cyber Security Company | 63 | #3 in Orangeville | 5.0★ (49) |