Managed IT Service Providers in Ontario: Ranked Lists by City (2026)
83 cities with a ranked listUpdated 0 paid placements in any rankingHow we rank →
We rank managed IT service providers in 83 Ontario cities, 26,826 city rankings in all. The largest lists are Brampton (746), Etobicoke (739) and Mississauga (738).
Managed IT service providers by city in Ontario
Every Ontario city with a ranked list of managed IT service providers, largest first. Each list ranks IT firms within 80 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 managed IT service providers
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 | Mariner Computer Sales & Service (Store inside the Mariner Motel) | 67 | #1 in Collingwood | 5.0★ (246) |
| 2 | NeoLore Networks - Ottawa Managed IT Services Company | 66 | #1 in Ottawa | 4.8★ (129) |
| 3 | IT Solutions Canada | 66 | #1 in North Perth | 4.9★ (131) |
| 4 | Unified Technicians | 66 | #1 in Toronto | 5.0★ (105) |
| 5 | Computrek | 66 | #1 in Valley East | 5.0★ (40) |
| 6 | Business Solutions With Integrity Inc. - Toronto Managed IT Services Company | 65 | #2 in East York | 4.9★ (100) |
| 7 | Connectability - Toronto Managed IT Services Company | 65 | #1 in Etobicoke | 4.9★ (96) |
| 8 | ACE I.T. Canada | 65 | #1 in London | 5.0★ (70) |
| 9 | Acadian Computer Service | 65 | #1 in Greater Napanee | 4.9★ (165) |
| 10 | Tech101 | 65 | #1 in Cobourg | 5.0★ (77) |