Company lists · Data refreshed September 2026

Top 25 Managed service IT companies based in Toronto, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 228 companies tracked

RevenueBase identified 228 managed service IT companies headquartered in Toronto, Canada as of September 2026 and tracks 1,979 professional contacts across them, including 703 with verified work emails. Toronto is the largest hub.

This list covers managed service IT companies 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

228Companies

1,979Contacts tracked

703Verified emails

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The 25 largest managed service IT companies based in Toronto, Canada

Ranked by team size

Top 25 of 228 managed service IT companies based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to managed service IT companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	APTUM	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	201-500	159 contacts →
	Partial evidence “In this era of ubiquitous computing the defining, delivering, managing, and scaling your digital services in a reliable and cost effectively has never been more complicated.” Source: RevenueBase Database · checked Sep 21, 2026
2	Carbon60	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	66 contacts →
	Strong evidence “Carbon60 is a trusted managed cloud hosting and IT services provider for private and public-sector organizations with business-critical applications.” Source: RevenueBase Database · checked Sep 21, 2026
3	MIT Consulting	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	62 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 21, 2026
4	Nuvollo Corp	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	52 contacts →
	Indirect evidence “Nuvollo provides organizations with the “Right Customer Experience” through seemless secure and compliance based connectivity for their mission critical ERP and CRM applications.” Source: RevenueBase Database · checked Sep 21, 2026
5	Deop INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	52 contacts →
	Indirect evidence “At DEOP, we transform businesses with cutting-edge cloud and technology solutions.” Source: RevenueBase Database · checked Sep 21, 2026
6	Cruciallogics	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	48 contacts →
	Strong evidence “We help organizations secure and manage their IT environments using the Microsoft-native technologies they already own.” Source: RevenueBase Database · checked Sep 21, 2026
7	Cyderes	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	501-1,000	37 contacts →
	Partial evidence “Cyderes is a global cybersecurity powerhouse offering comprehensive solutions around managed security, identity and access management, and professional services.” Source: RevenueBase Database · checked Sep 21, 2026
8	Xbase Technologies Corp	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	37 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 21, 2026
9	JIG Technologies INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	33 contacts →
	Strong evidence “We specialize in developing customized IT services whether that be Managed IT Support or Custom Software Development.” Source: RevenueBase Database · checked Sep 21, 2026
10	Micro Computer Consulting INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	32 contacts →
	Indirect evidence “In today's business landscape, technology is the core engine for growth and innovation.” Source: RevenueBase Database · checked Sep 21, 2026
11	Hudson Technology	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	31 contacts →
	Strong evidence “Hudson Technology is a Managed IT Services and Cybersecurity provider (MSP/MSSP) helping businesses across Canada and the U.S.” Source: RevenueBase Database · checked Sep 21, 2026
12	Fusion Computing Limited	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	31 contacts →
	Strong evidence “Fusion Computing is a Canadian-owned managed IT and cybersecurity firm serving businesses across Toronto, Hamilton, the GTA, and Metro Vancouver since 2012.” Source: RevenueBase Database · checked Sep 21, 2026
13	Apogee IT Services	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	31 contacts →
	Strong evidence “Apogee IT Services provides managed IT services to more than companies and organizations across the Northeast and Toronto.” Source: RevenueBase Database · checked Sep 21, 2026
14	Business Cloud INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	30 contacts →
	Partial evidence “Business Cloud manages and supports your business technology, preventing problems so that you can focus on scaling your business.” Source: RevenueBase Database · checked Sep 21, 2026
15	Tuor Networks	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	27 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 21, 2026
16	Interware Systems	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	26 contacts →
	Partial evidence “Founded in 1984, Interware is a pioneer in the IT industry and has remained competitive by adopting a progressive attitude and a continuously improving work ethic.” Source: RevenueBase Database · checked Sep 21, 2026
17	SUN IT Solutions	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	23 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 21, 2026
18	Airgate Technologies INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	21 contacts →
	Partial evidence “AirGate is a Premier Managed Services Provider of Secure Network and Cloud Services for Enterprise.” Source: RevenueBase Database · checked Sep 21, 2026
19	Tenecom Solutions	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “Since 1986, Tenecom has been providing unsurpassed network solutions, with an emphasis on small to medium sized businesses.” Source: RevenueBase Database · checked Sep 21, 2026
20	Zycom Technology INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	21 contacts →
	Strong evidence “Zycom is a leading IT Solution Provider helping companies ‘evolve’ from managing and maintaining existing IT infrastructure, to enabling business growth through innovation.” Source: RevenueBase Database · checked Sep 21, 2026
21	LP & Associates INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
22	APII	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	19 contacts →
	Strong evidence “apii is security focused IT Managed Services Headquartered in Toronto.” Source: RevenueBase Database · checked Sep 21, 2026
23	Technical Action Group INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	18 contacts →
	Strong evidence “Technical Action Group (TAG) is an Ontario-based managed IT and cybersecurity firm serving SMBs across the continent.” Source: RevenueBase Database · checked Sep 21, 2026
24	Optimus Tech Solutions INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	18 contacts →
	Strong evidence “Optimus Tech Solutions is a Toronto-based Managed IT and Cybersecurity Services provider helping organizations operate securely, efficiently, and with confidence.” Source: RevenueBase Database · checked Sep 21, 2026
25	Connectability IT Support	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	17 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: managed service IT companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names managed service IT companies.
Partial evidence: Its own public description names part of managed service IT companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name managed service IT companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 228 managed service IT companies based in Toronto, Canada

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Managed service IT companies based in Toronto, Canada at a glance

As of Sep 21, 2026

35.5%Verified-email coverage

8.7Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Toronto

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

103

11-50

101

51-200

201-500

501-1,000

Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 228 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 IT companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 IT companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names managed service IT companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among managed service IT companies, 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 its RevenueBase Smart Search 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, 703 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 21, 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 IT companies by metro in Canada

Managed service IT companies in Toronto228
Managed service IT companies in Calgary141
Managed service IT companies in Mississauga90
Managed service IT companies in Montreal75
Managed service IT companies in Edmonton69
Managed service IT companies in Vancouver69
Managed service IT companies in Ottawa61
Managed service IT companies in Markham36
Managed service IT companies in Brampton26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names managed service IT companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 228 managed service IT companies 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?

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

Which city has the most managed service IT companies?

Toronto leads with 228 headquartered companies, followed by Calgary (141) and Mississauga (90).

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 703 verified decision-maker contacts tracked across these 228 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 21, 2026.

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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 Smart Search, 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.