Company lists · Data refreshed September 2026

Top 14 IT security managed services based in Ottawa, Canada

Name: IT security managed services based in Ottawa, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 57 companies tracked

RevenueBase identified 57 IT security managed services headquartered in Ottawa, Canada as of September 2026 and tracks 422 professional contacts across them, including 189 with verified work emails. Toronto is the largest hub.

This list covers IT security managed services headquartered in Ottawa, 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 21, 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 21, 2026 86% judged on-target in blind review

57Companies

422Contacts tracked

189Verified emails

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The 14 largest IT security managed services based in Ottawa, Canada

Ranked by team size

Top 14 of 57 IT security managed services based in Ottawa, Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT security managed services: 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	Field Effect	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	51-200	150 contacts →
	Partial evidence “Field Effect delivers intelligence-grade managed detection and response for the AI era.” Source: RevenueBase Database · checked Sep 21, 2026
2	Dnsnetworks Technology Company	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	51-200	38 contacts →
	Partial evidence “We are a leading IT services provider based out of Ottawa, Montreal and Toronto.” Source: RevenueBase Database · checked Sep 21, 2026
3	Intega IT	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	11-50	28 contacts →
	Partial evidence “Intega IT is a boutique IT support company with a great reputation for protecting our clients' business.” Source: RevenueBase Database · checked Sep 21, 2026
4	Insa Corporation	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	11-50	17 contacts →
	Strong evidence “INSA is a service and consulting firm specializing in IT Network Security, based in Ottawa and located in Byward Market.” Source: RevenueBase Database · checked Sep 21, 2026
5	Sabytel Technologies, INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “With over 22 years of industry experience, Sabytel has cultivated a sterling reputation for providing strategic management consulting services to both public and private sectors.” Source: RevenueBase Database · checked Sep 21, 2026
6	Integra Networks	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	11-50	12 contacts →
	Partial evidence “Integra Networks is a premier IT services provider with a legacy of over 25 years in the industry.” Source: RevenueBase Database · checked Sep 21, 2026
7	Koza IT Services	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	1-10	10 contacts →
	Strong evidence “We are Cyber Security and IT provider to small to medium size (1-200 employee) businesses, and expert database services to enterprises.” Source: RevenueBase Database · checked Sep 21, 2026
8	The IT Department	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	11-50	5 contacts →
	Strong evidence “IT Department is a managed IT Service provider focusing on Ottawa IT support, managed services and remote network monitoring.” Source: RevenueBase Database · checked Sep 21, 2026
9	Starbeam Systems	Strong evidence	Ottawa, CanadaHQ checked Sep 21, 2026	11-50	4 contacts →
	Strong evidence “With over 28 years of proven expertise, Starbeam Systems is a leading provider of managed IT services across Canada and the United States.” Source: RevenueBase Database · checked Sep 21, 2026
10	Iionit Network Solutions INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “iionIT ("Eyes on IT") Network Solutions Inc.” Source: RevenueBase Database · checked Sep 21, 2026
11	Identitysecurite INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	11-50	1 contacts →
	Partial evidence “We are a CyberSecurity strategy and consulting firm focused on safeguarding data, computer systems and other IT assets of organizations across diverse industries with innovative…” Source: RevenueBase Database · checked Sep 21, 2026
12	DOZIT	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	1-10	1 contacts →
	Strong evidence “At DozIT, we specialize in a comprehensive range of IT services, including cybersecurity, asset management, and smart technology integration.” Source: RevenueBase Database · checked Sep 21, 2026
13	Caffeine Security	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Caffeine Security is a cyber security consulting company.” Source: RevenueBase Database · checked Sep 21, 2026
14	Fluid Workspace INC	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	1-10	1 contacts →
	Strong evidence “Professional IT Services and IT Security Services” Source: RevenueBase Database · checked Sep 21, 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: IT security managed services. 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 IT security managed services.
Partial evidence: Its own public description names part of IT security managed services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT security managed services. 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 14 of 57 IT security managed services based in Ottawa, Canada

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IT security managed services based in Ottawa, Canada at a glance

As of Sep 21, 2026

44.8%Verified-email coverage

7.4Average contacts per company

1-10Median size (employees)

326.3%Largest-city concentration · Toronto

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole Canada list rather than for Ottawa, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 57 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 security managed services, 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 Ottawa, Canada whose own description of what they do matches “IT security managed services”. 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 security managed services), 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 security managed services, and records with no verified work email. Companies headquartered outside Ottawa 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, 189 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 21, 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.

IT security managed services by metro in Canada

IT security managed services in Toronto186
IT security managed services in Calgary82
IT security managed services in Montreal70
IT security managed services in Ottawa57
IT security managed services in Mississauga49
IT security managed services in Vancouver45
IT security managed services in Edmonton39

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 security managed services, 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 security managed services are there based in Ottawa, Canada?

RevenueBase identified 57 IT security managed services headquartered in Ottawa, 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?

Field Effect, headquartered in Ottawa, tops this list with the largest team on record.

Which city has the most IT security managed services?

Toronto leads with 186 headquartered companies, followed by Calgary (82) and Montreal (70).

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 189 verified decision-maker contacts tracked across these 57 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 21, 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.