Company lists · Data refreshed September 2026

Top 25 Legacy system modernization based in Toronto, Canada

RevenueBase identified 96 legacy system modernization headquartered in Toronto, Canada as of September 2026 and tracks 880 professional contacts across them, including 250 with verified work emails. Toronto is the largest hub.

This list covers legacy system modernization 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 20, 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 20, 2026 86% judged on-target in blind review
96Companies
880Contacts tracked
250Verified emails
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The 25 largest legacy system modernization based in Toronto, Canada

Ranked by team size
Top 25 of 96 legacy system modernization based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to legacy system modernization: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 2026501-1,000150 contacts →

Indirect evidence

“Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, and high-impact technology initiatives.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-20077 contacts →

Partial evidence

“Qualicom Innovations has been at the forefront of IT consulting, software development and systems integration in Toronto since 1998.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-20067 contacts →

Indirect evidence

“Founded in 2013, Eitekh is a North America–based technology consulting firm that helps organizations navigate complex enterprise technology landscapes and maximize the value of…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceToronto, CanadaHQ checked Sep 20, 202611-5041 contacts →

Indirect evidence

“Today’s business environment is more competitive than ever.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5025 contacts →

Indirect evidence

“Is your wish that your users were able to work seamlessly from any location in a work-style that fits your business?”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5024 contacts →

Indirect evidence

“Reimagine, rethink and reinvent with Our infologiQ Team.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“Red X Carbon is a technology consulting and managed services company that specializes in digital transformations for our clients in areas including Microsoft Office 365, Azure…”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“SysIntelligence strives to bring the best possible IT solutions to small and medium-sized businesses in SI Solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5016 contacts →

Indirect evidence

“You rely on IT to run your business – but IT is not your business.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“At Synchroworks, we believe that a critical first step to IT initiatives (really, any initiative) is to clearly define how it will successfully impact your business.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“VNEXT Group is a Canada-based technology consulting firm specialized in the design and implementation of solutions that support digital transformation and sustainable growth…”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-20013 contacts →

Indirect evidence

“WatServ was acquired by Centrilogic on December 5th, 2022.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5012 contacts →

Partial evidence

“For over five years, Vertmix has helped organizations simplify and modernize how they work, transforming complex processes into connected, intelligent systems.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“We help small and medium size businesses streamline productivity by recommending, implementing and supporting technology solutions that complement your business.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 2026201-50010 contacts →

Indirect evidence

“Quartet is pleased to now be a part of Fully Managed by TELUS Business.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-509 contacts →

Partial evidence

“Since 2011, Edgeworx has been your trusted systems integrator, dedicated to optimizing IT operations and fortifying cyber resiliency.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceToronto, CanadaHQ checked Sep 20, 202611-509 contacts →

Indirect evidence

“At Litcom, we help organizations successfully plan, execute, and optimize their technology initiatives through our IT consulting and talent solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-508 contacts →

Indirect evidence

“Software implementation can be a daunting task.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“Free yourself with effective, intelligent technology solutions customized to your needs.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceToronto, ON, CanadaHQ checked Sep 20, 20261-106 contacts →

Partial evidence

System Support Canada (SSC) is a trusted Canadian provider of end-to-end technology services and solutions tailored to help businesses grow, adapt, and secure their operations.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

“Colenet Technical Services has been providing IT solutions to small / medium sized organizations in the Greater Toronto Area and Southern Ontario for over 15 years.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“We specialize in providing the best solutions for your business now and for the future.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceToronto, CanadaHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Curis is a forward-thinking technology and business consultancy that delivers innovative solutions to modernize and streamline business processes for companies looking to stay…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 96 legacy system modernization based in Toronto, Canada

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Legacy system modernization based in Toronto, Canada at a glance

As of Sep 20, 2026
28.4%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Toronto
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
49
11-50
34
51-200
11
201-500
1
501-1,000
1

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 96 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 legacy system modernization, 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 “legacy system modernization”. 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 legacy system modernization), 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 legacy system modernization, 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, 250 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 20, 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.

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 legacy system modernization, 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 legacy system modernization are there based in Toronto, Canada?

RevenueBase identified 96 legacy system modernization 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?

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

Which city has the most legacy system modernization?

Toronto leads with 96 headquartered companies, followed by Calgary (42) and Mississauga (37).

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 250 verified decision-maker contacts tracked across these 96 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 20, 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.