The telecommunications sector in Ontario features a mix of large corporations and mid-sized firms. Rogers Communications, with 28,500 employees, supports everyday connections. Mitel, founded in 1972, assists businesses in connecting and collaborating, while Bell Technical Solutions specializes in installation and maintenance of telecommunications services. Huawei Canada focuses on ICT infrastructure and smart devices, and Freedom Mobile provides affordable wireless services. Xplore Inc. connects rural Canadians with high-speed internet.
Most of these companies are headquartered in the Greater Toronto Area. Toronto hosts Rogers Communications, Freedom Mobile, Beanfield, Expertech Network Installation Inc., and Virgin Plus. Mississauga is home to Bell Technical Solutions, Redknee, Allstream, Optiva Inc., and WOW! mobile boutique. Markham hosts Huawei Canada, Xplore Inc., and Sangoma, while Kanata is home to Mitel and ShoreTel. The companies operate across various segments of the telecommunications industry, from infrastructure to consumer services.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Rogers Communicationsrogers.com
Provider of communication services, supporting everyday connections and ensuring seamless connectivity for work and personal needs, with a focus on customer satisfaction |
28,500 | |||
| 2 | 3,941 | ||||
| 3 |
Bell Technical Solutions
Specializing in installation and maintenance of telecommunications services, our goal is to enhance connectivity for Canadians through innovation and exceptional customer experience |
1,908 | |||
| 4 |
Huawei Canadaconsumer.huawei.com
A global provider of ICT infrastructure and smart devices, committed to connecting the world through innovative research and development in Canada |
1,758 | |||
| 5 |
Freedom Mobilefreedommobile.ca
Provides affordable wireless services with flat monthly fees, focusing on freedom from data overages and customer-friendly pricing. |
1,639 | |||
| 6 |
Xplore Inc.xplore.ca
Xplore connects rural Canadians with high-speed Internet using latest technology, serving from villages to cities with a customer-centric approach |
1,049 | |||
| 7 |
Redkneeredknee.com
Redknee provides monetization solutions for communication service providers, including billing, charging, policy management, and customer care modules available on various platforms |
754 | |||
| 8 |
Sangomasangoma.com
Global provider of Communications as a Service solutions for businesses, offering a diverse portfolio of reliable and flexible communication platforms with award-winning innovation and industry leadership |
604 | |||
| 9 |
Allstreamallstream.com
A leading provider of business communications services in North America, offering voice, collaboration, connectivity, and IT solutions to help clients innovate and connect |
572 | |||
| 10 | 569 | ||||
| 11 |
Optiva Inc.optiva.com
A provider of cloud-native revenue management software for telecommunications industry, helping service providers maximize digital and emerging market opportunities |
513 | |||
| 12 |
Beanfieldbeanfield.com
Privately held Canadian-operated company with the largest independent fibre-optic network in Toronto, Montreal, and Vancouver, connecting communities with affordable urban connectivity |
480 | |||
| 13 |
Expertech Network Installation Inc.expertech.net
A major network infrastructure service provider specializing in wireline and wireless broadband technology, offering services from project management to equipment installation |
462 | |||
| 14 |
WOW! mobile boutiquewowmobile.ca
A leading Canadian wireless retailer offering top carriers and accessories, dedicated to enhancing customer experience by guiding them to ideal solutions |
450 | |||
| 15 |
Virgin Plusvirginplus.ca
This company provides affordable mobile, internet, and TV services in Ontario and Quebec, with awesome member benefits and updates in French |
439 | |||
| 16 |
TekSavvy Solutions Inc.teksavvy.com
A telecommunications provider in Canada offering fair-priced phone and internet services with transparent business practices, advocating for consumer rights and trust |
423 | |||
| 17 | 387 | ||||
| 18 |
Aastraaastra.com
A global leader in enterprise communications, developing and delivering innovative products and applications to enhance efficiency and collaboration for businesses worldwide |
386 | |||
| 19 |
Koodokoodomobile.com
This company is a mobile phone provider in Canada with a focus on customer happiness, offering no fixed-term contracts, hidden fees, or roaming charges |
343 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 20 |
TextNowtextnow.com
This company aims to facilitate communication by offering free phone services with a team of curious and innovative individuals leading the way |
239 | |||
| 21 |
Kepler Communications Inc.kepler.space
Delivers on-orbit data at lightspeed with a satellite constellation, acting as Internet exchange points for space-to-space data relay. Modernizes communications for space missions. |
220 | |||
| 22 |
Group of Gold Linegroupofgl.com
Specializing in telecommunication solutions, IPTV, web-to-print, and business solutions, the group offers innovative technology products connecting people globally |
206 | |||
| 23 |
Telesattelesat.com
Provides satellite communication services, headquartered in Ottawa with offices in the United States and Brazil, acquired by Loral Space & Communications and Public Pension Investment Board. |
201 | |||
| 24 |
PLC Groupplcgroup.com
Leading provider of Critical Facilities & Infrastructure Management solutions for Telecom, Data Centre, and Cooling equipment, offering real-time visibility and optimization globally |
195 | |||
| 25 |
Wireless DNA Inc.wirelessdna.ca
A leading dealer for Rogers and Fido in Southern Ontario, offering personalized wireless plans and business solutions with exceptional customer service |
186 | |||
| 26 |
MAG Consultingmag-consulting.net
A consulting firm specializing in enhancing network technical experience for wireless operators through customizable services like network optimization and frequency planning |
177 | |||
| 27 |
Execulink Telecomexeculink.ca
A telecommunications provider in Ontario offering a range of services including data, internet, cable TV, and advanced voice features, while supporting local communities |
174 | |||
| 28 |
Comwavecomwave.net
A leading independent communications provider in Canada, offering services for personal, business, and wholesale customers with a strong nationwide presence |
173 | |||
| 29 |
Orga Systems (Acquired by Redknee)redknee.com
A global provider of monetization and subscriber management solutions for various industries, enabling innovative billing, charging, and customer care services worldwide |
171 | |||
| 30 | 170 | ||||
| 31 | 152 | ||||
| 32 |
CaTECH Systems Ltd.catech-systems.com
Provider of innovative network infrastructure solutions for Data Centres, Networking, AV, Security, Rollouts, and Electrical with nationwide service locations |
149 | |||
| 33 |
MNSI Telecommnsi.net
Local Windsor-based company providing fiber internet, phone services, technical support, and hosting to diverse Southwestern Ontario clients. |
119 | |||
| 34 |
Safarifonesafarifone.com
A global leader in Mobile Financial System software, wholesales, carrier services, and OSS/BSS software development for major telco groups in Africa |
83 | |||
| 35 |
Worldline Canadaworldline.ca
provides affordable residential voice, internet, and long-distance services across Canada, challenging monopolistic pricing with reliable, value-driven offerings |
24 | |||
| 36 |
Trackem GPStrackem.com
Trackem GPS offers real-time tracking solutions for small businesses to streamline fleet and workforce management, enhancing safety, security, and productivity |
10 | |||
| 37 |
International Telephone Products LTD.inttelprod.com
A leading provider of communication solutions, offering a wide range of products and services including VOIP, Internet access, and maintenance |
3 | |||
| 38 |
Northern Wolf Inc.
Provider of electronic engineering solutions, hardware, and software, offering project management, development, verification, and manufacturing support services for electronic products and systems |
2 | |||
| 39 |
Taycan Technologiestaycantechnologies.com
A forward-thinking technology company dedicated to creating transformative solutions through cutting-edge technology in various industries, driving progress and connecting people |
1 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
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