Company lists · Data refreshed September 2026

Top 25 Legacy system modernization companies based in Mississauga, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 68 companies tracked

RevenueBase identified 68 legacy system modernization companies headquartered in Mississauga, Canada as of September 2026 and tracks 1,072 professional contacts across them, including 195 with verified work emails. Toronto is the largest hub.

This list covers legacy system modernization companies headquartered in Mississauga, 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

68Companies

1,072Contacts tracked

195Verified emails

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The 25 largest legacy system modernization companies based in Mississauga, Canada

Ranked by team size

Top 25 of 68 legacy system modernization companies based in Mississauga, 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 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	Appficiency INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	132 contacts →
	Indirect evidence “At Appficiency, we help enterprises solve the most complex business technology challenges through strategic tech stack engineering and AI-led transformation.” Source: RevenueBase Database · checked Sep 20, 2026
2	J&m Group	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	127 contacts →
	Indirect evidence “At J&M Group, we are the strategic partner for businesses ready to redefine their future.” Source: RevenueBase Database · checked Sep 20, 2026
3	Busyqa	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	105 contacts →
	Indirect evidence “We help our clients modernize their Business through Agentic AI Transformation.” Source: RevenueBase Database · checked Sep 20, 2026
4	Novamodus Solutions INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	201-500	83 contacts →
	Indirect evidence “A well guarded secret is that Novamodus has the largest number of Oracle implementations (over 130+) in Canada and several in the US.” Source: RevenueBase Database · checked Sep 20, 2026
5	Inforica	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	77 contacts →
	Indirect evidence “Inforica Digital Services Inc.” Source: RevenueBase Database · checked Sep 20, 2026
6	Veriday INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	76 contacts →
	Indirect evidence “Enterprise digital transformation often fails for one reason: Execution complexity.” Source: RevenueBase Database · checked Sep 20, 2026
7	PRISM	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	48 contacts →
	Indirect evidence “Prism Cloud is a professional consulting company with leading capabilities in Digital Services.” Source: RevenueBase Database · checked Sep 20, 2026
8	Sparklex Technologies	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	47 contacts →
	Indirect evidence “Welcome to Sparklex Technologies, Spark the Future with Sparklex.” Source: RevenueBase Database · checked Sep 20, 2026
9	Datainvent Systems	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	32 contacts →
	Partial evidence “DataInvent Systems is an IT services, consulting and business solutions organization with expertise in AI assessments & adoption, digital transformation advisory, solution…” Source: RevenueBase Database · checked Sep 20, 2026
10	Qlogitek	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	30 contacts →
	Indirect evidence “At QLogitek, we deliver innovative IT solutions that help organizations transform the way they operate and serve their customers.” Source: RevenueBase Database · checked Sep 20, 2026
11	SSCI	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	26 contacts →
	Indirect evidence “Splitstream Consulting Inc is a one STOP simplifying IT Solutions Company dedicated to the idea that technology combined with creative solutions to business problems can help your…” Source: RevenueBase Database · checked Sep 20, 2026
12	People Force Consulting INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “People Force Consulting is an innovative and leading Technology Solutions provider.” Source: RevenueBase Database · checked Sep 20, 2026
13	Arkilos INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “Create next generation software and experiences ARKILOS is multidisciplinary consulting company and focuses on digital transformation, software development, staff augmentation…” Source: RevenueBase Database · checked Sep 20, 2026
14	Esynergy Solutions INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “We are a Canadian information technology company dedicated to providing small and medium-sized businesses with innovative IT solutions and digital services.” Source: RevenueBase Database · checked Sep 20, 2026
15	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
16	Emmaculate Global INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “A management consulting and solutions development, and integration organization focusing on- Business & Digital Transformation - Business and Enterprise Architecture - BIAN -…” Source: RevenueBase Database · checked Sep 20, 2026
17	Haya Solutions INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
18	Mdmtogo	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “At MDMtoGO, we stand by the idea that technology adoption and integration should be easy and beneficial.” Source: RevenueBase Database · checked Sep 20, 2026
19	Opexcellence	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence “OPEXCELLENCE is a professional services firm providing a broad range of services and solutions in digital strategy, cloud-based technology and digital operational excellence.” Source: RevenueBase Database · checked Sep 20, 2026
20	Gotofastlane	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “We specialize in IT Strategy & Consulting services tailored for mergers and acquisitions (M&A), ensuring a smooth, secure, and efficient technology integration process.” Source: RevenueBase Database · checked Sep 20, 2026
21	Datazon INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	2 contacts →
	Indirect evidence “About Datazon: From strategy, to implementation, to managed support – we offer you multi-industry and expert level technical capabilities under one umbrella.” Source: RevenueBase Database · checked Sep 20, 2026
22	REV Creations INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “Rev-Creations specializes in providing customized information technology solutions that address the specific needs of our clients.” Source: RevenueBase Database · checked Sep 20, 2026
23	Ubersoft Consulting INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	11-50	1 contacts →
	Indirect evidence “With years of experience in countless IT projects, we’re ready to take your business to the next level.” Source: RevenueBase Database · checked Sep 20, 2026
24	Todz Incorporated	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Quality driven Digital Transformation Professionals with 13 years overall experience.” Source: RevenueBase Database · checked Sep 20, 2026
25	Techiefy INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Techiefy is at the forefront of technological innovation.” 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 system 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 system modernization companies.
Partial evidence: Its own public description names part of legacy system 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 system 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 68 legacy system modernization companies based in Mississauga, Canada

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Legacy system modernization companies based in Mississauga, Canada at a glance

As of Sep 20, 2026

18.2%Verified-email coverage

15.8Average contacts per company

11-50Median size (employees)

363.2%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 across the whole Canada list rather than for Mississauga, so it is reported there. Company counts and contact totals on this page are exact for Mississauga, over 68 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 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 Mississauga, Canada whose own description of what they do matches “legacy system 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 system 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 system modernization companies, and records with no verified work email. Companies headquartered outside Mississauga 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, 195 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 system modernization companies by metro in Canada

Legacy system modernization companies in Toronto247
Legacy system modernization companies in Montreal116
Legacy system modernization companies in Mississauga68
Legacy system modernization companies in Vancouver60
Legacy system modernization companies in Calgary54
Legacy system modernization companies in Ottawa27
Legacy system modernization companies in Quebec27

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 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 system modernization companies are there based in Mississauga, Canada?

RevenueBase identified 68 legacy system modernization companies headquartered in Mississauga, 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?

Appficiency INC, headquartered in Mississauga, tops this list with the largest team on record.

Which city has the most legacy system modernization companies?

Toronto leads with 247 headquartered companies, followed by Montreal (116) and Mississauga (68).

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 195 verified decision-maker contacts tracked across these 68 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.