Company lists · Data refreshed September 2026

Top 13 Ot network security companies based in Canada

RevenueBase identified 36 ot network security companies headquartered in Canada as of September 2026 and tracks 193 professional contacts across them, including 79 with verified work emails. Toronto is the largest hub.

This list covers ot network security 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 29, 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 29, 2026 86% judged on-target in blind review
36Companies
193Contacts tracked
79Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 13 largest ot network security companies based in Canada

Ranked by team size
Top 13 of 36 ot network security companies based in Canada, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to ot network security 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
1Strong evidenceMississauga, ON, CanadaHQ checked Sep 29, 202611-5046 contacts →

Strong evidence

“Access 2 Networks is Canada’s premier network security provider, dedicated to helping organizations manage and protect their networks against internal and external security…”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceHalifax, NS, CanadaHQ checked Sep 29, 202611-5028 contacts →

Indirect evidence

“Our world has changed dramatically over the last 10-15 years with an explosion of mobile devices, IoT, cloud computing, and the shift to work-from-home.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceMontreal, QC, CanadaHQ checked Sep 29, 202611-5010 contacts →

Indirect evidence

“PM SCADA Cyber Defense was founded in 2009 by leading cybersecurity architects.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceMontreal, QC, CanadaHQ checked Sep 29, 202611-509 contacts →

Indirect evidence

“CyVault™ has emerged as a global, cyber defense leader offering the most advanced comprehensive protection for companies and organizations of any industry and size.”

Source: RevenueBase Database · checked Sep 29, 2026
5Strong evidenceWaterloo, ON, CanadaHQ checked Sep 29, 20261-106 contacts →

Strong evidence

“Tetrel Security is a boutique provider of cybersecurity assurance and engineering services, with deep specialization in embedded systems security, OT/ICS, transport sector and…”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceCalgary, AB, CanadaHQ checked Sep 29, 202611-506 contacts →

Partial evidence

“Korland was founded in 2021 and is the evolution of Robert Scott Group, which has been helping companies navigate complex IT and OT challenges for over a decade.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceLondon, ON, CanadaHQ checked Sep 29, 202611-504 contacts →

Indirect evidence

“Don’t wait for a Breach, Strengthen your cyber defense NOW!”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceToronto, ON, CanadaHQ checked Sep 29, 202611-503 contacts →

Partial evidence

“We are a cybersecurity company that provides solutions and services to help organizations improve their security posture.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceCalgary, AB, CanadaHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Established in 2017, Cyberdefense Partners Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceCalgary, AB, CanadaHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceMississauga, ON, CanadaHQ checked Sep 29, 202611-502 contacts →

Partial evidence

“The prevailing business market is in dire need of cybersecurity providers, security providers who provide much more than an antivirus program.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceCalgary, CanadaHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“BlockAdvise Corp has undergone a significant transformation, refocusing its core expertise towards the cybersecurity of IoT devices and networks in the Canadian market.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceMarkham, ON, CanadaHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026

Showing 13 of 36 ot network security companies based in Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 79 reachable decision-makers.

Free signup · no credit card

View the full list →

Ot network security companies based in Canada at a glance

As of Sep 29, 2026
40.9%Verified-email coverage
5.4Average contacts per company
11-50Median size (employees)
16.7%Largest-city concentration · Toronto
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
16
51-200
2
201-500
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 36 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 ot network security 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 “ot network security 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 ot network security 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 ot network security 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, 79 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 29, 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 ot network security 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 ot network security companies are there based in Canada?

RevenueBase identified 36 ot network security 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?

Access 2 Networks A2n, headquartered in Mississauga, tops this list with the largest team on record.

Which city has the most ot network security companies?

Toronto leads with 6 headquartered companies, followed by Montreal (5) and Calgary (3).

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 79 verified decision-maker contacts tracked across these 36 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 36 ot network security companies based in Canada. Start with a free account, no credit card.

Download this list →

Related lists

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.