Company lists · Data refreshed September 2026

Top 25 Enterprise internet service providers based in Canada

RevenueBase identified 91 enterprise internet service providers headquartered in Canada as of September 2026 and tracks 2,078 professional contacts across them, including 619 with verified work emails. Toronto is the largest hub.

This list covers enterprise internet service providers 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 28, 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 28, 2026 86% judged on-target in blind review
91Companies
2,078Contacts tracked
619Verified emails
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The 25 largest enterprise internet service providers based in Canada

Ranked by team size
Top 25 of 91 enterprise internet service providers based in Canada, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise internet service providers: 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 evidenceMontreal, QC, CanadaHQ checked Sep 28, 2026501-1,000273 contacts →

Indirect evidence

“Depuis plus de 20 ans, Vidéotron Affaires est un fournisseur de services de télécommunications d'affaires.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceVancouver, BC, CanadaHQ checked Sep 28, 2026n/a227 contacts →

Partial evidence

“Uniserve Communications Corporation is an unified communications company offering integrated voice and data services over multiple Internet protocol networks, including cable…”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceMarkham, ON, CanadaHQ checked Sep 28, 202651-200192 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceWinkler, MB, CanadaHQ checked Sep 28, 2026201-500154 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceThornhill, ON, CanadaHQ checked Sep 28, 202651-200140 contacts →

Partial evidence

“TERAGO offers secure and reliable Internet solutions to Canadian businesses, leveraging a diverse set of Internet connectivity options, including Fixed Wireless, Fiber, Cable, DSL…”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceWindsor, ON, CanadaHQ checked Sep 28, 202611-50118 contacts →

Partial evidence

“MNSi (Managed Network Systems Inc.) is a local Windsor based company that has been providing Internet services to Windsor and the surrounding areas since 1995.”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceLondon, ON, CanadaHQ checked Sep 28, 202651-20096 contacts →

Strong evidence

“Start.ca is a London-based high-speed internet service provider (ISP) offering reliable high speed internet access, voice and robust business services such as enterprise fibre…”

Source: RevenueBase Database · checked Sep 28, 2026
8Strong evidenceCalgary, AB, CanadaHQ checked Sep 28, 202651-20057 contacts →

Strong evidence

“Powering Business Connectivity with Enterprise-Grade Solutions Moby is a leading independent provider of high-speed internet, managed voice, and advanced networking solutions for…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceToronto, ON, CanadaHQ checked Sep 28, 202611-5045 contacts →

Indirect evidence

“Carry Telecom is an independent ISP having interconnections with Bell Canada, Rogers Communications and Cogeco Communications.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceWindsor, ON, CanadaHQ checked Sep 28, 202611-5042 contacts →

Indirect evidence

“KELCOM - RevolutionIP 1.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceNiagara Falls, ON, CanadaHQ checked Sep 28, 202611-5030 contacts →

Indirect evidence

“Niagara Regional Broadband Network Limited (NRBN) is the Niagara Region's leading service provider of high-performance data and voice solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceBrandon, MB, CanadaHQ checked Sep 28, 202651-20030 contacts →

Indirect evidence

“For a business to succeed in today’s marketplace, regardless of location, it needs reliable connectivity.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceMontreal, QC, CanadaHQ checked Sep 28, 202611-5027 contacts →

Indirect evidence

“Fast, owned, and built for what comes next.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceChibougamau, QC, CanadaHQ checked Sep 28, 202611-5024 contacts →

Indirect evidence

“Eeyou Communications Network Réseau de Communications Eeyou”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceBracebridge, ON, CanadaHQ checked Sep 28, 202611-5023 contacts →

Indirect evidence

“In Lakeland Energy Ltd.(LEL) was founded as a company to support a few distinct opportunities.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceToronto, ON, CanadaHQ checked Sep 28, 202611-5021 contacts →

Partial evidence

“EGATE is a Toronto based access, cloud, and voice provider specializing in products and services that meet the unique needs of our enterprise customers and wholesale partners.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceMarkham, ON, CanadaHQ checked Sep 28, 202651-20021 contacts →

Indirect evidence

“Atria Networks owns and operates one of Ontario’s largest fibre-optic networks, connecting vibrant communities from Ottawa to south-western Ontario.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceKanata, ON, CanadaHQ checked Sep 28, 202611-5018 contacts →

Partial evidence

“Hiboo Networks, is Ottawa-Gatineau’s first municipally-owned Fiber Optic based telecom provider backed by Hydro Ottawa offering high-speed internet services to over mid-to-large…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceOttawa, ON, CanadaHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“Personalized, stable and secure network solutions with superior performance and seamless business continuity.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceToronto, ON, CanadaHQ checked Sep 28, 202651-20011 contacts →

Partial evidence

“Gazelle is your friendly and personable partner for internet, telecommunications, and customer experience (CX) solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceLaval, QC, CanadaHQ checked Sep 28, 202611-5010 contacts →

Indirect evidence

“Fondée en Lognet accumule les réalisations intéressantes.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceKitchener, ON, CanadaHQ checked Sep 28, 202611-508 contacts →

Partial evidence

“Netflash Internet Solutions primary goal is finding the perfect networking solution for you, and you alone.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceHalifax, NS, CanadaHQ checked Sep 28, 202651-2008 contacts →

Indirect evidence

“Tata Communications (Canada) ULC is a telecommunications company based out of 1959 UPPER WATER STREET, SUITE 900, Halifax, Nova Scotia, Canada.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceLondon, BC, CanadaHQ checked Sep 28, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceLincoln, ON, CanadaHQ checked Sep 28, 202611-507 contacts →

Partial evidence

“At NWIC, we pride ourselves on being the fastest and most reliable wireless internet service provider in the region.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 91 enterprise internet service providers based in Canada

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Enterprise internet service providers based in Canada at a glance

As of Sep 28, 2026
29.8%Verified-email coverage
22.8Average contacts per company
11-50Median size (employees)
13.2%Largest-city concentration · Toronto
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
48
51-200
15
201-500
1
501-1,000
1
10001+
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 91 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 enterprise internet service providers, 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 “enterprise internet service providers”. 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 enterprise internet service providers), 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 enterprise internet service providers, 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, 619 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 28, 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 enterprise internet service providers, 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 enterprise internet service providers are there based in Canada?

RevenueBase identified 91 enterprise internet service providers 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?

Videotron Business, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most enterprise internet service providers?

Toronto leads with 12 headquartered companies, followed by Montreal (7) and Calgary (4).

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 619 verified decision-maker contacts tracked across these 91 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 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 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.