Company lists · Data refreshed September 2026

Top 25 IT infrastructure installation companies based in Canada

RevenueBase identified 192 IT infrastructure installation companies headquartered in Canada as of September 2026 and tracks 1,496 professional contacts across them, including 548 with verified work emails. Calgary is the largest hub.

This list covers IT infrastructure installation 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
192Companies
1,496Contacts tracked
548Verified emails
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The 25 largest IT infrastructure installation companies based in Canada

Ranked by team size
Top 25 of 192 IT infrastructure installation 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 IT infrastructure installation 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceQuébec, QC, CanadaHQ checked Sep 20, 2026201-500171 contacts →

Indirect evidence

“L’univers des technologies de l’information a beaucoup évolué depuis 15 ans.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-200150 contacts →

Partial evidence

“GlassHouse Systems (GHS) is an infrastructure, security, and managed services solutions provider who develops, designs and deploys solutions for leading enterprises in Canada and…”

Source: RevenueBase Database · checked Sep 20, 2026
3Strong evidenceSaskatoon, SK, CanadaHQ checked Sep 20, 202651-20083 contacts →

Strong evidence

“ESTI Consulting Services is a provider of Enterprise IT Infrastructure and IT Professional Services related to software development, project and business services, IT…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceOttawa, ON, CanadaHQ checked Sep 20, 202651-20050 contacts →

Indirect evidence

“Decisive gives customers certainty on their journey to digital transformation.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceQuébec, QC, CanadaHQ checked Sep 20, 202651-20042 contacts →

Partial evidence

“Founded in 1996, our company has offered IT services to businesses in Quebec for over twenty years.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceBelleville, ON, CanadaHQ checked Sep 20, 202651-20035 contacts →

Indirect evidence

“OT Group is a leading provider of network integrated business solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceCalgary, AB, CanadaHQ checked Sep 20, 2026n/a34 contacts →

Partial evidence

“Computer Infrastructure Consulting Services Incorporated (CICS) provides technology solutions for enterprise-wide systems and networks using analysis, design, implementation…”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceMontreal, QC, CanadaHQ checked Sep 20, 202651-20030 contacts →

Indirect evidence

“Macno Télécom est une entreprise dynamique qui œuvre dans le domaine des télécommunications.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceTrois-rivières, QC, CanadaHQ checked Sep 20, 202611-5027 contacts →

Indirect evidence

“Our mission is simple.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceCalgary, AB, CanadaHQ checked Sep 20, 202611-5023 contacts →

Partial evidence

“Provision Infotech is uniquely qualified to provide IT Services to companies whose operations include remote industrial facilities.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceNorth York, ON, CanadaHQ checked Sep 20, 202611-5022 contacts →

Partial evidence

“Making IT Work!”

Source: RevenueBase Database · checked Sep 20, 2026
12Strong evidenceToronto, CanadaHQ checked Sep 20, 202651-20021 contacts →

Strong evidence

“With over 15 years of experience, we specialize in full turn-key cabling installation and deploying large-scale infrastructure solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidencePrince George, BC, CanadaHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“With over 50 years’ combined experience, Ascentech provides a wide range of services including desktop acquisition and management, server upgrades and maintenance, application…”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceSherwood Park, AB, CanadaHQ checked Sep 20, 202611-5018 contacts →

Strong evidence

“Alt-Tech is an Edmonton based IT Consulting Company that has been responsible for the design, installation and support for computer systems and networks for over 10 years in…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202611-5016 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceSudbury, ON, CanadaHQ checked Sep 20, 202611-5016 contacts →

Indirect evidence

“Our PARTNERED I.T.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceMontreal, QC, CanadaHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“Top Tech Solution offers full turn-key network services including design, implementation, project management; admin training and help desk support.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceWaterloo, ON, CanadaHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“Megawire Inc.”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidenceLondon, ON, CanadaHQ checked Sep 20, 202611-5013 contacts →

Strong evidence

“For more than two decades, Attache Group has designed, implemented and supported our client’s IT infrastructure across Southwestern Ontario.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceCookstown, ON, CanadaHQ checked Sep 20, 202611-5013 contacts →

Partial evidence

“At Fortify Network Solutions, we appreciate the importance of your network, the impact it has on your business, and what it takes to ensure things work the way you expect them to.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceMontreal, QC, CanadaHQ checked Sep 20, 202611-5013 contacts →

Partial evidence

“Since 1987 – SoftFlow Canada – Network Cabling Montreal, IT Services Montreal & Cybersecurity Network Cabling Montreal – Structured cabling and fiber optic for offices and data…”

Source: RevenueBase Database · checked Sep 20, 2026
22Strong evidenceOttawa, ON, CanadaHQ checked Sep 20, 202611-5012 contacts →

Strong evidence

“Stega Networks is focused on providing you the best IT, infrastructure, backup and cloud services available.”

Source: RevenueBase Database · checked Sep 20, 2026
23Strong evidenceVancouver, BC, CanadaHQ checked Sep 20, 202611-5011 contacts →

Strong evidence

IT infrastructure solutions have evolved with great velocity over the past few years, the Modern Datacenter provides businesses with the ability to transform operations, simplify…”

Source: RevenueBase Database · checked Sep 20, 2026
24Strong evidenceCalgary, AB, CanadaHQ checked Sep 20, 202651-20011 contacts →

Strong evidence

“Zentra specializes in providing IT infrastructure products and services from the datacenter to the desktop.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceCalgary, AB, CanadaHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“TECKRA INC is a fully licensed contractor currently servicing Canada nationwide with high emphasis in Alberta, Saskatchewan and B.C.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 192 IT infrastructure installation companies based in Canada

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IT infrastructure installation companies based in Canada at a glance

As of Sep 20, 2026
36.6%Verified-email coverage
7.8Average contacts per company
1-10Median size (employees)
12.0%Largest-city concentration · Calgary
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
107
11-50
67
51-200
13
201-500
2
1,001-5,000
1

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 192 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 IT infrastructure installation 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 “IT infrastructure installation 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 IT infrastructure installation 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 IT infrastructure installation 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, 548 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 IT infrastructure installation 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 IT infrastructure installation companies are there based in Canada?

RevenueBase identified 192 IT infrastructure installation 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?

Technoconseil, headquartered in Quebec, tops this list with the largest team on record.

Which city has the most IT infrastructure installation companies?

Calgary leads with 23 headquartered companies, followed by Toronto (17) and Montreal (11).

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 548 verified decision-maker contacts tracked across these 192 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.