Company lists · Data refreshed September 2026

Top 25 Managed service providers based in Toronto, Canada

Name: Managed service providers based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 180 companies tracked

RevenueBase identified 180 managed service providers headquartered in Toronto, Canada as of September 2026 and tracks 1,479 professional contacts across them, including 560 with verified work emails. Toronto is the largest hub.

This list covers managed service providers headquartered in Toronto, Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

180Companies

1,479Contacts tracked

560Verified emails

Unlock all 180 companies Free signup · no credit card · 500 free credits

The 25 largest managed service providers based in Toronto, Canada

Ranked by team size

Top 25 of 180 managed service providers based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names managed service providers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Glasshouse SystemsStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	150
	“GlassHouse Systems (GHS) is an infrastructure, security, and managed services solutions provider who develops, designs and deploys solutions for leading enterprises in Canada and…” Source: company website · checked Sep 5, 2026
2	MIT ConsultingStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	62
	“Canada's Best Managed IT Firm 2017-21 Top 500 MSP's in the world 2019 Growth 500 2013-19 Microsoft Gold Partner and much more.” Source: company website · checked Sep 5, 2026
3	CruciallogicsStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	48
	“We help organizations secure and manage their IT environments using the Microsoft-native technologies they already own.” Source: company website · checked Sep 5, 2026
4	CyderesStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	501-1,000	37
	“Cyderes is a global cybersecurity powerhouse offering comprehensive solutions around managed security, identity and access management, and professional services.” Source: company website · checked Sep 5, 2026
5	Xbase Technologies CorpStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	37
	“A Toronto-based Managed Service Provider, XBASE Technologies helps organizations and their employees power through IT challenges so they thrive in whatever the digital world…” Source: company website · checked Sep 5, 2026
6	Micro Computer Consulting INCIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	32
	“In today's business landscape, technology is the core engine for growth and innovation.” Source: company website · checked Sep 5, 2026
7	Hudson TechnologyStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	31
	“Hudson Technology is a Managed IT Services and Cybersecurity provider (MSP/MSSP) helping businesses across Canada and the U.S.” Source: company website · checked Sep 5, 2026
8	Fusion Computing LimitedStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	31
	“Fusion Computing is a Canadian-owned managed IT and cybersecurity firm serving businesses across Toronto, Hamilton, the GTA, and Metro Vancouver since 2012.” Source: company website · checked Sep 5, 2026
9	Apogee IT ServicesStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	31
	“Apogee IT Services provides managed IT services to more than companies and organizations across the Northeast and Toronto.” Source: company website · checked Sep 5, 2026
10	Business Cloud INCStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	30
	“Business Cloud manages and supports your business technology, preventing problems so that you can focus on scaling your business.” Source: company website · checked Sep 5, 2026
11	Tuor NetworksStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	27
	“Tuor Networks provides comprehensive end-to-end Managed IT Services to support our clients’ business strategies and future growth plans and help solve even their most complex…” Source: company website · checked Sep 5, 2026
12	SUN IT SolutionsStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	23
	“Sun IT Solutions - Canada's premier IT consulting firm offering top-notch services nationwide, including Managed IT Services, IT Support Services, IT Outsourcing Services, Tech…” Source: company website · checked Sep 5, 2026
13	Tenecom SolutionsIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	21
	“Since 1986, Tenecom has been providing unsurpassed network solutions, with an emphasis on small to medium sized businesses.” Source: company website · checked Sep 5, 2026
14	LP & Associates INCIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	19
	Source: company website · checked Sep 5, 2026
15	APIIStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	19
	“apii is security focused IT Managed Services Headquartered in Toronto.” Source: company website · checked Sep 5, 2026
16	Technical Action Group INCStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	18
	“Technical Action Group (TAG) is an Ontario-based managed IT and cybersecurity firm serving SMBs across the continent.” Source: company website · checked Sep 5, 2026
17	Optimus Tech Solutions INCStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	18
	“Optimus Tech Solutions is a Toronto-based Managed IT and Cybersecurity Services provider helping organizations operate securely, efficiently, and with confidence.” Source: company website · checked Sep 5, 2026
18	Connectability IT SupportStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	17
	“Connectability has been a trusted partner for businesses in Toronto & GTA for over 30 years, providing expert managed IT services that keep your technology running smoothly and…” Source: company website · checked Sep 5, 2026
19	System Architects INCIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	17
	“System Architects is a leading IT company based in Toronto, serving clients across Canada.” Source: company website · checked Sep 5, 2026
20	Querytel INCIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	17
	“At QueryTel we have collected industry data to outline the bottleneck and specific I.T.” Source: company website · checked Sep 5, 2026
21	Sysintelligence- Bringing Innovation And Solutions TogetherIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	17
	“SysIntelligence strives to bring the best possible IT solutions to small and medium-sized businesses in SI Solutions.” Source: company website · checked Sep 5, 2026
22	Streamline ITIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	16
	“You rely on IT to run your business – but IT is not your business.” Source: company website · checked Sep 5, 2026
23	Applications On Networks Inc. AppsonnetIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	16
	“Sensible Solutions for your Business Established in 2004, in Toronto, Canada; providing Managed Infrastructure Services to clients all over the globe.” Source: company website · checked Sep 5, 2026
24	VBS IT ServicesStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	1-10	16
	“VBS IT Services is an award-winning IT managed service company helping small businesses ‘do more with less’ and be wildly successful.” Source: company website · checked Sep 5, 2026
25	Omega Network SolutionsIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	14
	“Award-Winning Toronto IT Support Experts.” Source: company website · checked Sep 5, 2026

Showing 25 of 180 managed service providers based in Toronto, Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 560 reachable decision-makers.

Free signup · no credit card

See all 180 companies

Managed service providers based in Toronto, Canada at a glance

As of Sep 5, 2026

1-10Median size (employees)

TorontoLargest hub · 180 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole Canada list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 180 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among managed service providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Toronto, Canada whose own description of what they do matches “managed service providers”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among managed service providers, and records with no verified work email. Companies headquartered outside Toronto are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 560 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Managed service providers by metro in Canada

Managed service providers in Toronto180
Managed service providers in Calgary117
Managed service providers in Montreal73
Managed service providers in Mississauga64
Managed service providers in Vancouver64
Managed service providers in Edmonton58
Managed service providers in Ottawa49
Managed service providers in Markham26

Frequently asked

How many managed service providers are there based in Toronto, Canada?

RevenueBase identified 180 managed service providers headquartered in Toronto, Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Glasshouse Systems, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most managed service providers?

Toronto leads with 180 headquartered companies, followed by Calgary (117) and Montreal (73).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 560 verified decision-maker contacts tracked across these 180 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 180 managed service providers based in Toronto, Canada. Start with a free account, no credit card.

Get the full list

Related lists

Managed service providers by geography

Browse the directory

Browse: Companies home · Managed service providers in Canada · All Canada lists · All Managed service providers lists · New lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.