Company lists · Data refreshed September 2026

Top 25 Legacy app modernization companies based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 94 companies tracked

RevenueBase identified 94 legacy app modernization companies headquartered in Canada as of September 2026 and tracks 1,462 professional contacts across them, including 579 with verified work emails. Toronto is the largest hub.

This list covers legacy app modernization companies headquartered in 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

94Companies

1,462Contacts tracked

579Verified emails

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The 25 largest legacy app modernization companies based in Canada

Ranked by team size

Top 25 of 94 legacy app modernization companies based in Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to legacy app modernization 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	Fresche Solutions	Partial evidence	Montréal, QC, CanadaHQ checked Sep 20, 2026	201-500	334 contacts →
	Partial evidence “Fresche Solutions is an AI-powered IT modernization company that manages and maximizes the value of your IBM i and Microsoft systems.” Source: RevenueBase Database · checked Sep 20, 2026
2	Techverx	Indirect evidence	Oakville, ON, CanadaHQ checked Sep 20, 2026	201-500	267 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
3	Spiria	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	51-200	130 contacts →
	Indirect evidence “Spiria partners with organizations to modernize their systems, build custom software, and accelerate digital transformation.” Source: RevenueBase Database · checked Sep 20, 2026
4	Euristiq	Indirect evidence	Etobicoke, ON, CanadaHQ checked Sep 20, 2026	51-200	59 contacts →
	Indirect evidence “Euristiq is an AI-native custom software development company helping businesses innovate, modernize, and scale.” Source: RevenueBase Database · checked Sep 20, 2026
5	Integrio Systems	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	51-200	55 contacts →
	Indirect evidence “Integrio Systems is a custom software development company specializing in enterprise systems, AI applications, custom SaaS solutions and complex web systems.” Source: RevenueBase Database · checked Sep 20, 2026
6	GSI Solutions	Partial evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	48 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
7	Renaps	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 20, 2026	51-200	46 contacts →
	Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 20, 2026
8	Solutions Kumojin	Indirect evidence	Québec, QC, CanadaHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “We support our clients in the creation of modern web and mobile applications.” Source: RevenueBase Database · checked Sep 20, 2026
9	OLLON	Indirect evidence	Ottawa, CanadaHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Ollon is a boutique software development agency specializing in custom software application development.” Source: RevenueBase Database · checked Sep 20, 2026
10	Blackware Technologies Atoom	Indirect evidence	Québec, QC, CanadaHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “Blackware Technologies is revolutionizing digital intelligence across the entire construction ecosystem, preparing today's businesses for tomorrow's challenges.” Source: RevenueBase Database · checked Sep 20, 2026
11	Focus21 INC	Indirect evidence	Kitchener, ON, CanadaHQ checked Sep 20, 2026	51-200	17 contacts →
	Indirect evidence “Check it out; Focus21 has seen it all.” Source: RevenueBase Database · checked Sep 20, 2026
12	Reactivestax Technologies INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “We provide enterprises with a full range of software development, solutions architecture, devops, and digital transformation solutions.” Source: RevenueBase Database · checked Sep 20, 2026
13	Core Migration	Partial evidence	Kanata, ON, CanadaHQ checked Sep 20, 2026	11-50	13 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
14	Opreto	Indirect evidence	Windsor, ON, CanadaHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “Software development company for web and mobile applications, in the cloud and on-premise.” Source: RevenueBase Database · checked Sep 20, 2026
15	Itechtions INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	51-200	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
16	Devactif	Indirect evidence	Saint-roch-de-richelieu, QC, CanadaHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “DEVACTIF \| EXPERTS EN DÉVELOPPEMENT LOGICIEL Développement logiciel de bureau Développement d’interfaces logicielles Windows à l’aide de WPF, WinForms ou UWP avec C#.” Source: RevenueBase Database · checked Sep 20, 2026
17	Devsights	Indirect evidence	Québec, QC, CanadaHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “Devsights is a custom software development company founded in 2017 by Jean-Philippe Poulin de Courval.” Source: RevenueBase Database · checked Sep 20, 2026
18	Stackfee	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “Stackfee is a boutique software development agency founded in 2018 in Montreal by Harley McPhee, with a team primarily based in North America.” Source: RevenueBase Database · checked Sep 20, 2026
19	Knowledge Engineers INC	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “For over 15 years, Knowledge Engineers have been helping companies prosper through the provision of innovative custom software solutions that help improve both operational…” Source: RevenueBase Database · checked Sep 20, 2026
20	Idextrus INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “We are a full-service software development company specializing in Software Architecture Development, Cloud Solutions Architecture, and Security Audits.” Source: RevenueBase Database · checked Sep 20, 2026
21	Codingibex	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “We support companies in their digital transformation by providing custom software / application development services.” Source: RevenueBase Database · checked Sep 20, 2026
22	NEXT	Partial evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “NEXT is a team of IT professionals with in-depth expertise in web/app technologies.” Source: RevenueBase Database · checked Sep 20, 2026
23	Quicksilver Software Development INC	Indirect evidence	Sidney, BC, CanadaHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence “AI is changing the economics of software delivery.” Source: RevenueBase Database · checked Sep 20, 2026
24	Rubicon Micrproducts	Partial evidence	Aurora, ON, CanadaHQ checked Sep 20, 2026	11-50	3 contacts →
	Partial evidence “Rubicon Microproducts is a technology consulting and product engineering company focused on solving complex operational, data, integration, and modernization challenges for…” Source: RevenueBase Database · checked Sep 20, 2026
25	Datanovation LTD	Indirect evidence	Manchester, ON, CanadaHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “DataNovata generates web-enabled applications to view databases, so that you can decommission end-of-life applications without losing access to the database structure and go fully…” Source: RevenueBase Database · checked Sep 20, 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: legacy app modernization 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 legacy app modernization companies.
Partial evidence: Its own public description names part of legacy app modernization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legacy app modernization 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 94 legacy app modernization companies based in Canada

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Legacy app modernization companies based in Canada at a glance

As of Sep 20, 2026

39.6%Verified-email coverage

15.6Average contacts per company

1-10Median size (employees)

27.7%Largest-city concentration · Toronto

Sep 20, 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 94 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 app modernization 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 Canada whose own description of what they do matches “legacy app modernization 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 legacy app modernization 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 legacy app modernization companies, and records with no verified work email. Companies headquartered outside Canada 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, 579 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.

Legacy app modernization companies by metro

Legacy app modernization companies in Toronto26

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 app modernization 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 legacy app modernization companies are there based in Canada?

RevenueBase identified 94 legacy app modernization companies headquartered in 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?

Fresche Solutions, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most legacy app modernization companies?

Toronto leads with 26 headquartered companies, followed by Montreal (13) and Vancouver (6).

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 579 verified decision-maker contacts tracked across these 94 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.