Company lists · Data refreshed September 2026

Top 14 IT infrastructure consulting firms based in Canada

RevenueBase identified 3,675 IT infrastructure consulting firms headquartered in Canada as of September 2026 and tracks 76,014 professional contacts across them, including 25,079 with verified work emails and 8,935 with mobile numbers. Toronto is the largest hub.

This list covers IT infrastructure consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
3,675Companies
76,014Contacts tracked
25,079Verified emails
8,935Mobile numbers
Unlock all 3,675 companies Free signup · no credit card · 500 free credits

The 14 largest IT infrastructure consulting firms based in Canada

Ranked by team size
Top 14 of 3,675 IT infrastructure consulting firms based in Canada, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
NTG ClarityStrong evidence
Markham, ON, CanadaHQ checked Sep 4, 2026501-1,000868

“NTG CLARITY is a leader in delivering network, telecom, IT and infrastructure solutions to network service providers and medium and large enterprises.”

Source: company website · checked Sep 4, 2026
2
Lgs, An IBM CompanyPartial evidence
Québec, QC, CanadaHQ checked Sep 4, 2026501-1,000736

“A consulting firm providing technology solutions and advisory services to both private and public sector organizations.”

Source: company website · checked Sep 4, 2026
3
CharterPartial evidence
Victoria, BC, CanadaHQ checked Sep 4, 2026n/a700

“Charter, an award-winning IT solution and managed services provider, was founded in 1997 in Victoria, BC, Canada.”

Source: company website · checked Sep 4, 2026
4
Online Business SystemsIndirect evidence
Winnipeg, AB, CanadaHQ checked Sep 4, 2026201-500588

“Online Business Systems is a digital transformation and cybersecurity consultancy working with clients in Canada, USA & EMEA, now part of CGI.”

Source: company website · checked Sep 4, 2026
5
ITIIndirect evidence
Québec, QC, CanadaHQ checked Sep 4, 2026201-500487

“We promote human, organizational and operational intelligence, not just artificial intelligence.”

Source: company website · checked Sep 4, 2026
6
Optimus SBRPartial evidence
Toronto, ON, CanadaHQ checked Sep 4, 2026201-500313

“Optimus SBR is Canada’s largest independent management consulting firm.”

Source: company website · checked Sep 4, 2026
7
MobilelivePartial evidence
Toronto, ON, CanadaHQ checked Sep 4, 2026201-500297

“mobileLIVE is a Canadian Technology Services and Consulting company, behind the growth of iconic brands including; Rogers, TELUS, Bell, CIBC, BMO, Loblaws, Staples, Google, and…”

Source: company website · checked Sep 4, 2026
8
f12.netPartial evidence
Edmonton, ON, CanadaHQ checked Sep 4, 2026201-500267

“F12.net is dedicated to equipping business leaders, IT decision-makers, and their teams with the tools and strategies needed to strengthen their cyber security posture.”

Source: company website · checked Sep 4, 2026
9
SystematixStrong evidence
Calgary, AB, CanadaHQ checked Sep 4, 2026501-1,000258

“Systematix is one of North America's most tenured and trusted IT Consulting and Solutions Firms, with offices spread throughout Canada, in the US and UK.”

Source: company website · checked Sep 4, 2026
10Fredericton, NB, CanadaHQ checked Sep 4, 2026201-500249

“Headquartered in Canada with locations across the US and around the globe, Bulletproof’s ultimate goal is to help your organization reduce IT, security, and/or compliance…”

Source: company website · checked Sep 4, 2026
11
Nova NetworksIndirect evidence
Ottawa, QC, CanadaHQ checked Sep 4, 2026201-500239

“Nova Networks is committed to the goal of ensuring that the products and services we provide exceed our clients’ expectations.”

Source: company website · checked Sep 4, 2026
12
CPUPartial evidence
Quebec, QC, CanadaHQ checked Sep 4, 20261,001-5,000232

“Since 1984, CPU has been an industry leader in information technology in Quebec, offering its expertise in technology, infrastructure, product deployment, technical support and…”

Source: company website · checked Sep 4, 2026
13
Pathway CommunicationsPartial evidence
Markham, QC, CanadaHQ checked Sep 4, 202651-200193

“Founded in 1995, Pathway Communications specializes in providing innovative and cost-effective IT and communication solutions for businesses of all sizes.”

Source: company website · checked Sep 4, 2026
14
VictrixPartial evidence
Montréal, QC, CanadaHQ checked Sep 4, 2026201-500177

“Founded in 2003, Victrix is one of the largest IT services companies in Quebec with over 200 professionals.”

Source: company website · checked Sep 4, 2026

Showing 14 of 3,675 IT infrastructure consulting firms based in Canada

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IT infrastructure consulting firms based in Canada at a glance

As of Sep 4, 2026
1-10Median size (employees)
TorontoLargest hub · 687 HQs
8,935Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
2,208
11-50
1,067
51-200
269
201-500
52
501-1,000
30
1,001-5,000
16
5,001-10,000
2
10001+
4

Verified emails by last verification

0–30
0
31–60
2,515
61–90
13,422
90–180
8,844
180+
298

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 IT infrastructure consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Canada whose own description of what they do matches “IT infrastructure consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among IT infrastructure consulting firms, 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 an evidence 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, 25,079 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 4, 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

How many IT infrastructure consulting firms are there based in Canada?

RevenueBase identified 3,675 IT infrastructure consulting firms 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?

NTG Clarity, headquartered in Markham, tops this list with the largest team on record.

Which city has the most IT infrastructure consulting firms?

Toronto leads with 687 headquartered companies, followed by Montreal (311) and Calgary (259).

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 25,079 verified decision-maker contacts tracked across these 3,675 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 4, 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.