Company lists · Data refreshed September 2026

Top 25 Unified communications platforms based in Canada

RevenueBase identified 66 unified communications platforms headquartered in Canada as of September 2026 and tracks 5,133 professional contacts across them, including 1,745 with verified work emails and 974 with mobile numbers. Toronto is the largest hub.

This list covers unified communications platforms 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 6, 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 6, 2026 86% judged on-target in blind review
66Companies
5,133Contacts tracked
1,745Verified emails
974Mobile numbers
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The 25 largest unified communications platforms based in Canada

Ranked by team size
Top 25 of 66 unified communications platforms based in Canada, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to unified communications platforms: 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 evidenceKanata, ON, CanadaHQ checked Sep 6, 20261,001-5,0003,442 contacts →

“Powering more than 2 billion connections every day, Mitel helps businesses connect, collaborate and take care of customers.”

Source: company website · checked Sep 6, 2026
2Partial evidenceMississauga, ON, CanadaHQ checked Sep 6, 2026501-1,000475 contacts →

“Allstream is a leader in business communications throughout Canada and the United States.”

Source: company website · checked Sep 6, 2026
3Partial evidenceMarkham, ON, CanadaHQ checked Sep 6, 2026201-500454 contacts →

“Sangoma Technologies Corporation (TSX: STC; Nasdaq: SANG) is a global leader in essential business communications.”

Source: company website · checked Sep 6, 2026
4Partial evidenceMontréal, CanadaHQ checked Sep 6, 202651-20074 contacts →

“Cloudli is a leading provider of next generation voice, messaging, and data communications solutions for businesses and consumers.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceVancouver, BC, CanadaHQ checked Sep 6, 202651-20028 contacts →

“On March 1, 2021, CounterPath was acquired by Alianza, Inc.”

Source: company website · checked Sep 6, 2026
6Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 202611-5023 contacts →

“We are an idea-based company that helps you connect with your customers through intelligent cloud-communication solutions.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceMississauga, ON, CanadaHQ checked Sep 6, 202611-5023 contacts →

“Introtel has installed thousands of phone systems for both small and large organizations.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceTerrebonne, QC, CanadaHQ checked Sep 6, 202611-5021 contacts →

“Are your meetings wasting time instead of creating value?”

Source: company website · checked Sep 6, 2026
9Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 202611-5020 contacts →

“A leader in teleconferencing and group communications, iotum builds cutting-edge products to enhance remote collaboration for organizations of any size.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceLondon, ON, CanadaHQ checked Sep 6, 202611-5018 contacts →

“In 2011, we set out with a clear goal: to build a VoIP business people could actually count on.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceLaval, QC, CanadaHQ checked Sep 6, 202611-5017 contacts →

“Notre mission est d'être votre partenaire à valeur ajoutée en offrant des solutions en télécommunications qui correspondent à vos besoins.”

Source: company website · checked Sep 6, 2026
12Partial evidenceVancouver, BC, CanadaHQ checked Sep 6, 202611-5015 contacts →

“Ansatel is one of Canada’s leading converged communications voice solutions to clients large and small.”

Source: company website · checked Sep 6, 2026
13Partial evidenceBurlington, ON, CanadaHQ checked Sep 6, 202651-20014 contacts →

“We're leaders for all things Business Communication.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceVancouver, BC, CanadaHQ checked Sep 6, 20261-1013 contacts →

“At Limitless AV, we specialize in delivering innovative audiovisual (AV) and business technology solutions that empower organizations to connect, collaborate, and communicate more…”

Source: company website · checked Sep 6, 2026
15Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 202611-5013 contacts →

“What makes Accutel® different Accutel® offers a Reliable, Flexible, Scalable and highly secure audio, web, event and video collaboration platform in use by customers worldwide.”

Source: company website · checked Sep 6, 2026
16Partial evidenceMarkham, ON, CanadaHQ checked Sep 6, 202611-5012 contacts →

“RingOffice specializes in voice, video, cloud communication and network solutions for businesses.”

Source: company website · checked Sep 6, 2026
17Indirect evidenceLévis, QC, CanadaHQ checked Sep 6, 202611-5011 contacts →

“Services téléphoniques pour entreprise”

Source: company website · checked Sep 6, 2026
18Strong evidenceLondon, ON, CanadaHQ checked Sep 6, 20261-1010 contacts →

“DAGI provides the essentials unified communication solutions for SMB/SME Customers.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceBurlington, ON, CanadaHQ checked Sep 6, 202611-507 contacts →

“DHCSTech is leading the way into a new enterprise frontier by deploying gold standard UCaaS and other transformative technology that will redefine how you do business.”

Source: company website · checked Sep 6, 2026
20Strong evidenceBrampton, ON, CanadaHQ checked Sep 6, 20261-106 contacts →

“As a leading Software-as-a-Service (SaaS) provider, Ezeetel is revolutionizing business communications by delivering a powerful, unified cloud communications platform.”

Source: company website · checked Sep 6, 2026
21Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 202611-505 contacts →

“Slingshot Telecom is a cloud-based communications provider that specializes in business services.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceVancouver, BC, CanadaHQ checked Sep 6, 20261-104 contacts →
Source: company website · checked Sep 6, 2026
23Indirect evidenceVancouver, BC, CanadaHQ checked Sep 6, 20261-104 contacts →

“BY SOLUTION is re-establishing higher level customer service and accountability in the industry.”

Source: company website · checked Sep 6, 2026
24Partial evidenceBarrie, ON, CanadaHQ checked Sep 6, 202611-503 contacts →

“Leading provider of business communication products and cloud phone services.”

Source: company website · checked Sep 6, 2026
25Indirect evidenceToronto, ON, CanadaHQ checked Sep 6, 202611-503 contacts →

“Vantact is more than a cloud telephone company.”

Source: company website · checked Sep 6, 2026

Showing 25 of 66 unified communications platforms based in Canada

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Unified communications platforms based in Canada at a glance

As of Sep 6, 2026
34.0%Verified-email coverage
19.0%Mobile-number coverage
77.8Average contacts per company
11-50Median size (employees)
30.3%Largest-city concentration · Toronto
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
30
51-200
5
201-500
3
501-1,000
1
1,001-5,000
3

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 unified communications platforms, 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 “unified communications platforms”. 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 unified communications platforms), 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 unified communications platforms, 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, 1,745 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 6, 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 unified communications platforms, 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 unified communications platforms are there based in Canada?

RevenueBase identified 66 unified communications platforms 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?

MITEL, headquartered in Kanata, tops this list with the largest team on record.

Which city has the most unified communications platforms?

Toronto leads with 20 headquartered companies, followed by Mississauga (6) and Vancouver (6).

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 1,745 verified decision-maker contacts tracked across these 66 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 6, 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.