Company lists · Data refreshed September 2026

Top 25 Legacy software modernization companies based in Canada

Name: Legacy software modernization companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 135 companies tracked

RevenueBase identified 135 company matches for legacy software modernization companies associated with Canada as of September 2026 and tracks 2,098 professional contacts across them, including 725 with verified work emails. Toronto is the largest hub.

This list covers company matches for legacy software modernization companies associated with Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

135Companies

2,098Contacts tracked

725Verified emails

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The 25 largest legacy software modernization companies based in Canada

Ranked by team size

Top 25 of 135 company matches for legacy software modernization companies based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Fresche Solutions	Exact match	Montréal, QC, CanadaHQ recorded Sep 28, 2026	201-500	334 contacts →
	Exact match “Fresche Solutions is an AI-powered IT modernization company that manages and maximizes the value of your IBM i and Microsoft systems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Techverx	Exact match	Oakville, ON, CanadaHQ recorded Sep 28, 2026	201-500	267 contacts →
	Exact match “From a one-person startup in 2010 to a 200+ developer-strong powerhouse, Techverx has built 380+ successful projects for 150+ clients across three continents; delivering the Right…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Celestial Systems INC	Exact match	Burnaby, BC, CanadaHQ recorded Sep 28, 2026	201-500	247 contacts →
	Exact match “Celestial is the end-to-end AI transformation partner for regulated industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Spiria	Exact match	Montreal, QC, CanadaHQ recorded Sep 28, 2026	51-200	130 contacts →
	Exact match “Spiria partners with organizations to modernize their systems, build custom software, and accelerate digital transformation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Cabot Technology Solutions INC	Exact match	Hamilton, ON, CanadaHQ recorded Sep 28, 2026	51-200	119 contacts →
	Exact match “Cabot Technology Solutions is a value-based IT consulting firm delivering high-value, cost-effective solutions using cutting-edge technologies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Unisystech Consulting	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	501-1,000	91 contacts →
	Exact match “Unisystech is a global technology consulting firm specializing in digital transformation, AI-enabled solutions, and end-to-end enterprise technology delivery across Canada, the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Integrio Systems	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	51-200	55 contacts →
	Exact match “Integrio Systems is a custom software development company specializing in enterprise systems, AI applications, custom SaaS solutions and complex web systems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	GSI Solutions	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	11-50	48 contacts →
	Exact match “GSI Solutions (formerly Gated Shores Interactive) is a technology company focused on migrating legacy systems to the Cloud and delivering custom cloud-based software solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Renaps	Exact match	Montréal, QC, CanadaHQ recorded Sep 28, 2026	51-200	46 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Build With Assembly	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	11-50	38 contacts →
	Exact match “Build With Assembly is a software engineering consultancy that helps leading enterprises and ambitious scale-ups navigate rapid digital transformation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	IT Conquest	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “We are a software design and development company based out of Toronto, Canada.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Solutions Kumojin	Exact match	Québec, QC, CanadaHQ recorded Sep 28, 2026	11-50	24 contacts →
	Exact match “We support our clients in the creation of modern web and mobile applications.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Blackware Technologies Atoom	Exact match	Québec, QC, CanadaHQ recorded Sep 28, 2026	11-50	19 contacts →
	Exact match “Blackware Technologies is revolutionizing digital intelligence across the entire construction ecosystem, preparing today's businesses for tomorrow's challenges.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Exolnet	Exact match	Montréal, QC, CanadaHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “We're a leading-edge software engineering company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Focus21 INC	Exact match	Kitchener, ON, CanadaHQ recorded Sep 28, 2026	51-200	17 contacts →
	Exact match “Check it out; Focus21 has seen it all.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Reactivestax Technologies INC	Exact match	Mississauga, ON, CanadaHQ recorded Sep 28, 2026	51-200	15 contacts →
	Exact match “We provide enterprises with a full range of software development, solutions architecture, devops, and digital transformation solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Core Migration	Exact match	Kanata, ON, CanadaHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “Migration of Legacy Applications CORE Migration is the proven method for moving legacy applications such as PowerHouse®, Transact and VPLUS to the Microsoft®.NET platform.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Opreto	Exact match	Windsor, ON, CanadaHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “Software development company for web and mobile applications, in the cloud and on-premise.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Vertmix	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	11-50	12 contacts →
	Exact match “For over five years, Vertmix has helped organizations simplify and modernize how they work, transforming complex processes into connected, intelligent systems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	FIXRS	Exact match	Montreal, QC, CanadaHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “Fixrs is helping organisations fix their IT/Web project they invested in compare to having to rebuild the whole thing like most agencies would propose.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Itechtions INC	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	51-200	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Devactif	Exact match	Saint-roch-de-richelieu, QC, CanadaHQ recorded Sep 28, 2026	1-10	9 contacts →
	Exact match “DEVACTIF \| EXPERTS EN DÉVELOPPEMENT LOGICIEL Développement logiciel de bureau Développement d’interfaces logicielles Windows à l’aide de WPF, WinForms ou UWP avec C#.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Devsights	Exact match	Québec, QC, CanadaHQ recorded Sep 28, 2026	1-10	8 contacts →
	Exact match “Devsights is a custom software development company founded in 2017 by Jean-Philippe Poulin de Courval.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Stackfee	Exact match	Montreal, QC, CanadaHQ recorded Sep 28, 2026	1-10	7 contacts →
	Exact match “Stackfee is a boutique software development agency founded in 2018 in Montreal by Harley McPhee, with a team primarily based in North America.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Knowledge Engineers INC	Exact match	Brampton, ON, CanadaHQ recorded Sep 28, 2026	11-50	7 contacts →
	Exact match “For over 15 years, Knowledge Engineers have been helping companies prosper through the provision of innovative custom software solutions that help improve both operational…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “legacy software modernization companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 135 legacy software modernization companies based in Canada

See the full list, filter by size, metro and specialty, and access 725 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Legacy software modernization companies based in Canada at a glance

As of Sep 28, 2026

34.6%Verified-email coverage

15.5Average contacts per company

1-10Median size (employees)

26.7%Largest-city concentration · Toronto

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 135 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Canada whose business descriptions match “legacy software modernization companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 725 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Legacy software modernization companies by metro

Legacy software modernization companies in Toronto36

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “legacy software modernization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many legacy software modernization companies are there based in Canada?

RevenueBase identified 135 company matches for legacy software modernization companies associated with Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Fresche Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most legacy software modernization companies?

Toronto leads with 36 company records, followed by Montreal (15) and Vancouver (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 725 professional contacts with verified work emails tracked across these 135 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 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.