This selection of large subscription businesses in Ontario highlights a strong presence of software development companies, alongside financial institutions and telecommunications providers. Noteworthy examples include Thomson Reuters, offering news and information tools for professionals, Shopify, which provides tools for retail businesses, and OpenText, specializing in information management. The list also features Rogers Communications, a provider of communication services, and Scotiabank, a global financial institution.
A clear pattern is the concentration of headquarters in Toronto, with a significant number of companies based there. Beyond the major urban centers, companies like GoodLife Fitness, headquartered in London, Ontario, and Hydro One, founded in 1999, which handles electricity transmission and distribution, contribute to the diverse economic landscape of the province.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Scotiabankscotiabank.com
A global financial institution serving customers, families, and communities by providing advice, products, and services to help them achieve success |
87,065 | |||
| 2 |
Thomson Reutersthomsonreuters.com
It offers news and information tools for professionals in legal, regulatory, and tax sectors, helping them navigate complex environments. |
36,640 | |||
| 3 |
Shopifyshopify.com
Provides trusted tools to start, grow, market, and manage a retail business of any size, powering millions of businesses across 175 countries. |
28,526 | |||
| 4 |
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 | |||
| 5 |
OpenTextopentext.com
It specializes in Information Management, assisting businesses of all sizes in securely capturing, governing, and exchanging information globally. |
22,990 | |||
| 6 |
Bell Mediabellmedia.ca
Leading media and entertainment company with diverse assets in premium video, audio, out-of-home advertising, and digital media; committed to keeping Canadians entertained and informed. |
6,682 | |||
| 7 |
Cineplexcineplex.com
A Canadian entertainment company operating in film exhibitor, digital commerce, food service, media, and entertainment venues, including The Rec Room and Playdium |
6,073 | |||
| 8 |
Hydro Onehydroone.com
Electricity transmission and distribution across Ontario, ensuring reliable power delivery and supporting infrastructure for homes and businesses. |
5,671 | |||
| 9 |
GoodLife Fitnessgoodlifefitness.com
The largest fitness provider in Canada and fourth largest globally, with a strong emphasis on member care, personal wellness, and team motivation |
5,525 | |||
| 10 |
Wattpadcompany.wattpad.com
Innovative social storytelling platform empowering diverse Gen Z writers with a global community engaging in original stories, driving the future of entertainment |
4,872 | |||
| 11 |
Costco Wholesale Canadacostco.ca
Global retailer with warehouse club operations in 8 countries, known for quality, value, and ethical business practices Family-oriented atmosphere for employee success |
4,127 | |||
| 12 |
1Password1password.com
Protects business data, employee accounts, and sensitive information with secure access, sharing, and integration into existing systems. |
3,074 | |||
| 13 |
YMCA of Greater Torontoymcagta.org
Promoting equity and well-being in the GTA through diverse programs and services, fostering community engagement and support for individuals of all backgrounds |
2,973 | |||
| 14 |
Kinaxiskinaxis.com
Empowering businesses to orchestrate their entire supply chain network, from long-term planning to real-time execution and delivery. |
2,322 | |||
| 15 |
PointClickCarepointclickcare.com
Leading healthcare technology platform providing collaboration and real-time insights throughout the patient healthcare journey for various healthcare providers and organizations |
2,311 | |||
| 16 | 2,224 | ||||
| 17 |
Altus Groupaltusgroup.com
A leading provider of asset and fund intelligence for commercial real estate, offering advanced analytics, technology, and advisory services globally |
2,168 | |||
| 18 |
Reliance Home Comfortreliancehomecomfort.com
A leading provider of home services and energy efficient solutions with over 60 years of experience, serving millions of customers across Canada and the United States |
1,775 | |||
| 19 |
Descartes Systems Groupdescartes.com
Software-as-a-service solutions enhancing productivity, security, and sustainability for logistics businesses through routing, tracking, shipment planning, and customs compliance. |
1,688 | |||
| 20 |
Freedom Mobilefreedommobile.ca
Provides affordable wireless services with flat monthly fees, focusing on freedom from data overages and customer-friendly pricing. |
1,639 | |||
| 21 |
Kumon Canada, Inc.kumon.com
An after-school program that enhances math and reading skills through individualized learning, boosting student confidence, concentration, and study skills worldwide |
1,497 | |||
| 22 |
CAA Club Groupcaasco.com
Provides roadside assistance, travel services, insurance products, and member savings to over 2.5 million Canadian motorists and travelers. |
1,462 | |||
| 23 |
N-able
Provides comprehensive software solutions for managed service providers, enabling remote monitoring, management, security, and data protection for their small and medium-sized business clients. |
1,341 | |||
| 24 |
Postmedia Network Inc.postmedia.com
A Canadian news media company with over 120 brands delivering engaging content across print, online, and mobile platforms to millions weekly |
1,303 | |||
| 25 | 1,271 | ||||
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. | |||||
| 26 |
Enercare Inc.enercare.ca
A leading Canadian home and commercial services company providing energy-efficient products and services in heating, cooling, plumbing, electrical, water heating, and purification |
1,195 | |||
| 27 |
Achieversachievers.com
This company provides employee voice and recognition solutions to activate participation and drive a culture of performance, resulting in sustainable business results worldwide |
1,146 | |||
| 28 |
The Globe and Mailtheglobeandmail.com
Provides comprehensive coverage of Canadian national, international, and business news through print and online platforms since 1844. |
1,123 | |||
| 29 |
Chartered Professional Accountants of Canada (CPA Canada)cpacanada.ca
Support Canadian CPAs through regulation collaboration, professional development, public interest advocacy, and international accounting profession strengthening efforts. |
1,058 | |||
| 30 |
Assentassent.com
Provides an AI-native platform for product compliance, sustainability, responsible sourcing, and trade compliance, helping manufacturers reduce supply chain risk and manage data. |
1,052 | |||
| 31 |
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 | |||
| 32 |
MOVATI Athleticmovatiathletic.com
A fitness experience focused on welcoming, comfort, and health, with diverse and passionate teams dedicated to changing lives in the industry |
993 | |||
| 33 |
Voicesvoices.com
A voice marketplace connecting businesses with voice actors for hire and payment, bypassing the need for talent agents |
964 | |||
| 34 |
Dye & Durham Corporationdyedurham.com
Provider of practice management solutions for legal professionals, data insights for corporate transactions, and payments infrastructure for government and financial institutions across multiple countries |
945 | |||
| 35 |
Morningstar DBRSdbrs.morningstar.com
Global provider of independent credit rating services and opinions for corporate, sovereign, financial, and structured finance instruments across multiple asset classes worldwide. |
928 | |||
| 36 |
Royal Canadian Mintmint.ca
The company is a for-profit Crown Corporation responsible for producing coins, managing coinage systems, providing advice on coinage matters, and marketing bullion products |
876 | |||
| 37 | 870 | ||||
| 38 |
Coritycority.com
Empowering employees with EHS software solutions to reduce risks, improve efficiencies, and create a safer, healthier, and more sustainable world |
864 | |||
| 39 |
Ceridian Canadaceridian.ca
Global provider of human capital management technology solutions in over 50 countries Offers cloud-based HCM, Global Solutions, and Small Business Payroll to improve work life |
846 | |||
| 40 |
Massage Addictmassageaddict.ca
A Canadian wellness provider offering massage therapy, chiropractic care, acupuncture, and reflexology in modern clinics with preferred membership pricing |
795 | |||
| 41 |
Tucowstucows.com
The company focuses on keeping people connected and the internet open through domain services, fiber internet, and telecom software solutions |
793 | |||
| 42 |
ClubLinkclublink.ca
A leader in golf club memberships, ClubLink offers reciprocal access to championship golf courses in Ontario, Quebec, and Florida since 1994 |
791 | |||
| 43 |
Toronto Starthestar.com
Canada's largest daily newspaper, with over 6 million weekly readers Thestarcom is a highly visited newspaper website in Canada |
721 | |||
| 44 |
Resolver, a Kroll Businessresolver.com
Risk data aggregation and analysis platform providing business impact insights, enabling strategic risk communication and operational resilience for enterprises. |
717 | |||
| 45 |
Vena Solutionsvenasolutions.com
Leading provider of planning, decisioning and close solutions. Offers Excel and Power BI-native experiences to finance, business analytics and IT teams. Uses AI-ready data foundation. |
716 | |||
| 46 |
CAA South Central Ontariocaasco.com
Provider of roadside assistance, automotive, insurance, travel, and rewards services, focused on delivering peace of mind and quality service to members |
705 | |||
| 47 |
Varicentvaricent.com
Provides SaaS software for revenue leaders to optimize territory planning, quota setting, revenue operations, and incentive programs globally. |
669 | |||
| 48 |
Sportsnetsportsnet.ca
Canada's leading sports media brand offers multimedia content including TV channels, radio, website, app, and podcasts covering NHL, MLB, NBA, soccer, tennis, wrestling, and more |
650 | |||
| 49 |
Medcanmedcan.com
A global health and healthcare leader offering diagnostic assessments, wellness programs, and innovative health services to individuals, families, and organizations |
650 | |||
| 50 |
Blo Blow Dry Barblomedry.com
Offering blow out hair styling services at over 120 locations in North America and the Philippines, with franchise opportunities available for growth |
637 | |||
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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 11, 2026.
More company lists in Ontario
- The largest companies in Ontario 5,032
- Multinational companies in Ontario 901
- Financial services firms in Ontario 396
- Manufacturers in Ontario 389
- Critical infrastructure operators in Ontario 344
- Retail chains in Ontario 327
- Companies with in-house R&D in Ontario 300
- Logistics companies in Ontario 285
- Education providers in Ontario 276
- SaaS companies in Ontario 275
- Truck Transportation companies in Ontario 270
- Transportation, Logistics, Supply Chain and Storage companies in Ontario 261
- Public sector organisations in Ontario 259
- Financial Services companies in Ontario 250
- IT Services and IT Consulting companies in Ontario 235
- Software Development companies in Ontario 231
- Healthcare providers in Ontario 226
- Hardware manufacturers in Ontario 213
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- Hospitals and Health Care companies in Ontario 205
- Distributors and wholesalers in Ontario 183
- Companies with a mobile app in Ontario 181
- Publicly traded companies in Ontario 156
- IT services companies in Ontario 156