Company lists · Data refreshed September 2026
Top 25 Communication system integrators based in Canada
RevenueBase identified 524 communication system integrators headquartered in Canada as of September 2026 and tracks 10,856 professional contacts across them, including 4,478 with verified work emails. Calgary is the largest hub.
This list covers communication system integrators 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 19, 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.
The 25 largest communication system integrators based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,573 contacts → | ||||
Indirect evidence “From a regional telecom networks builder in 1967 in Quebec (Canada), Telecon has grown into a world-class industry-leading telecom networks design, infrastructure and connectivity…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 876 contacts → | ||||
Indirect evidence “NTG CLARITY is a leader in delivering network, telecom, IT and infrastructure solutions to network service providers and medium and large enterprises.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 805 contacts → | ||||
Strong evidence “With decades of experience and offices coast to coast, Paladin Technologies has emerged as the premier complex systems integrator in North America.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 475 contacts → | ||||
Partial evidence “Allstream is a leader in business communications throughout Canada and the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 454 contacts → | ||||
Partial evidence “Sangoma Technologies Corporation (TSX: STC; Nasdaq: SANG) is a global leader in essential business communications.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 396 contacts → | ||||
Strong evidence “Jolera is a Global Systems Integrator (GSI) dedicated to transforming IT operations into secure, efficient environments.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 164 contacts → | ||||
Strong evidence “A Technology Systems Integrator (TSI) addresses all aspects of your technology needs under one roof.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 144 contacts → | ||||
Indirect evidence “VistaCare was established in greater Halifax in 2003 to solve technology challenges for today's businesses and organizations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 119 contacts → | ||||
Partial evidence “Bravad est une organisation experte des communications numériques qui s'engage à créer de la valeur chez ses clients et à leur offrir des solutions de productivité.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 101 contacts → | ||||
Partial evidence “Cybertech Automation is a full-service systems integration company operating in Canada and the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 96 contacts → | ||||
Indirect evidence “Orizon Mobile est spécialisée dans les télécommunications, fondée en 1992, mise aujourd'hui sur une relève composée de jeunes entrepreneurs talentueux.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 91 contacts → | ||||
Indirect evidence “Recognized as a global innovator and experience-backed solutions provider, SI markets leading-edge software solutions and professional services worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 86 contacts → | ||||
Partial evidence “Unity’s mission is to help organizations leverage communications technology to provide a positive impact on their business.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 86 contacts → | ||||
Strong evidence “Delco Automation is a premiere integrator of process automation and control systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 72 contacts → | ||||
Partial evidence “ZIRO is the only IT company that makes unified communications simple and easy.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 69 contacts → | ||||
Indirect evidence “Established in 1995 in Ottawa, FCi is a privately owned company powered by a dedicated team of over 150 professionals, including more than 100 skilled technicians.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 64 contacts → | ||||
Indirect evidence “Provider of custom designed and manufactured automated assembly and testing machinery and material handling.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 57 contacts → | ||||
Strong evidence “SYSTEM INTEGRATORS for COMMERCIAL AND INDUSTRIAL CONTROL SYSTEMS.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 57 contacts → | ||||
Indirect evidence “TDOT IT Solutions is one of Canada's leading infrastructure, service solution provider.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 51 contacts → | ||||
Partial evidence “At Sunco, our passion is to make business communication easier for our clients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 50 contacts → | ||||
Strong evidence “As a premier systems integrator, Cartel Communication Systems specializes in comprehensive solutions for wireless communications across diverse sectors, including but not limited…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 49 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 48 contacts → | ||||
Strong evidence “Controls & Equipment is the leading Building Systems Integrator and Controls Contractor in the Canadian Maritime Provinces.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 47 contacts → | ||||
Indirect evidence “Since the establishment of the ROHL Group of Companies in 1967, ROHL has grown from a small family company into a leading multi-national telecommunication firm.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 47 contacts → | ||||
Indirect evidence “We are a business solutions partner who does things differently.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: communication system integrators. 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 communication system integrators.
- Partial evidence
- Its own public description names part of communication system integrators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name communication system integrators. 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 25 of 524 communication system integrators based in Canada
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Communication system integrators based in Canada at a glance
As of Sep 19, 2026Companies by employee count
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 524 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 communication system integrators, 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 “communication system integrators”. 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 communication system integrators), 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 communication system integrators, 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, 4,478 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 19, 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.
Communication system integrators by metro
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 communication system integrators, 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 communication system integrators are there based in Canada?
RevenueBase identified 524 communication system integrators 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?
Telecon, headquartered in Montreal, tops this list with the largest team on record.
Which city has the most communication system integrators?
Calgary leads with 49 headquartered companies, followed by Toronto (36) and Mississauga (31).
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 4,478 verified decision-maker contacts tracked across these 524 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 19, 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.
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