| # | Company | Employees |
|---|---|---|
| 1 |
TDcareers.td.com
A leading North American bank with a global presence, serving 22 million customers with a team of over 85,000 employees Providing legendary customer experiences |
105,476 |
| 2 | 99,801 | |
| 3 |
Scotiabankscotiabank.com
A global financial institution serving customers, families, and communities by providing advice, products, and services to help them achieve success |
87,065 |
| 4 | 60,290 | |
| 5 | 47,865 | |
| 6 |
Manulifemanulife.com
Global financial services group providing insurance, wealth management, and asset management solutions to millions of customers worldwide. |
34,375 |
| 7 |
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 |
| 8 |
City of Torontotoronto.ca
Provides diverse public services to residents, businesses, and visitors, encompassing technology, finance, culture, and innovation, employing a large workforce across numerous divisions. |
23,495 |
| 9 |
Intactintactfc.com
Providing insurance solutions to help individuals, businesses, and society thrive during good times and bounce back during challenging times |
21,693 |
| 10 |
Canada Lifecanadalife.com
Providing financial protection, retirement and investment solutions, workplace mental health support, and community project investments to enhance Canadians' well-being. |
13,569 |
| 11 |
University Health Networkuhn.ca
Largest Canadian research hospital network specializing in patient care, medical research, education, and fundraising for advanced healthcare services. |
11,930 |
| 12 |
RBC Capital Marketsrbccm.com
Global investment bank providing specialized expertise in capital markets, banking, and finance to corporations, institutional investors, asset managers, and governments across international markets. |
11,098 |
| 13 |
Ontario Power Generationopg.com
Leading clean power generator advancing clean energy innovations, striving for a net-zero future with diverse electricity generation fleet in Ontario and the United States |
9,878 |
| 14 |
Toronto Transit Commission (TTC)ttc.ca
A leading transit system in Toronto, providing safe and reliable transportation to over 17 million customers daily through various modes |
8,829 |
| 15 |
RBC Wealth Managementrbcwealthmanagement.com
Provides comprehensive wealth management, private banking, investment, and asset management solutions to high net worth individuals, families, and institutional clients across global markets. |
8,748 |
| 16 |
Unity Health Torontounityhealth.to
A health network in Toronto providing primary, community, specialized, and long-term care services, as well as investing in research and education |
8,686 |
| 17 |
Sunnybrooksunnybrook.ca
A leading teaching hospital affiliated with the University of Toronto, specializing in patient care, groundbreaking research, and inventing the future of healthcare |
7,599 |
| 18 |
TD Securitiestdsecurities.com
A leading global provider of integrated capital markets products and services, offering underwriting, advisory, market access, transaction banking, and investment solutions |
6,544 |
| 19 |
Metrolinxmetrolinx.com
Provincial agency managing regional transportation through GO Transit, UP Express, and PRESTO while executing the largest transit infrastructure expansion in Ontario history. |
6,444 |
| 20 |
Aecon Group Inc.aecon.com
Provides integrated construction solutions for civil, urban transportation, nuclear, utility, and industrial sectors, plus project development, financing, investment, and operations. |
6,368 |
| 21 |
Hydro Onehydroone.com
Electricity transmission and distribution across Ontario, ensuring reliable power delivery and supporting infrastructure for homes and businesses. |
5,671 |
| 22 |
BMO Capital Marketscapitalmarkets.bmo.com
A leading North American financial services provider offering a complete range of investment and corporate banking products to clients worldwide |
5,451 |
| 23 |
St. Michael's Hospitalunityhealth.to
A leading hospital providing compassionate care, medical education in 27 disciplines, and research through the Keenan Research Centre for global impact |
4,868 |
| 24 |
TD Insurancetdinsurance.com
A leading insurance provider in Canada, offering protection for over four million individuals and families through home, auto, life, and health insurance |
4,647 |
| 25 | 4,477 | |
| 26 |
LifeLabs Medical Laboratory Serviceslifelabs.com
A leading Canadian provider of diagnostic information and digital health systems, offering laboratory tests, genetics services, and online patient portals |
4,356 |
| 27 |
CIBC Capital Marketscibccm.com
Providing support and expertise to help clients access capital, expand operations, and invest through tailored industry-leading solutions in financial markets globally |
4,231 |
| 28 |
Sinai Healthsinaihealth.ca
A leading academic health science centre focused on integrated care, innovative research, and educating future healthcare leaders for comprehensive patient care |
4,083 |
| 29 |
Health | Santรฉontario.ca
Focused on protecting and strengthening publicly funded health care in Ontario by providing patient-focused, sustainable, and high-quality care for all residents |
3,762 |
| 30 |
Humber River Healthhrh.ca
Leading digital hospital in North America using technology and clinical expertise to improve patient care, reduce errors, and drive community academic healthcare advancements |
3,272 |
| 31 |
Ontario Health | Santรฉ Ontarioontariohealth.ca
Government agency ensuring high-quality, patient-centred healthcare services across Ontario, promoting health equity and supporting healthcare professionals. |
3,020 |
| 32 |
Mount Sinai Hospital (Toronto), Sinai Healthmountsinai.on.ca
Internationally recognized academic health sciences center providing exemplary patient care, nursing excellence, and top employer culture Flagship clinical programs available |
2,951 |
| 33 |
Corus Entertainmentcorusent.com
Development and delivery of diverse multimedia content including television, radio, digital platforms, and streaming services for global audiences. |
2,864 |
| 34 |
Scotia Wealth Managementscotiawealthmanagement.com
Wealth management professionals offering investment services, wealth solutions, and comprehensive financial planning to affluent individuals, entrepreneurs, and families |
2,809 |
| 35 |
Porter Airlines Inc.flyporter.com
Elevates economy air travel experience, providing genuine hospitality with style. Operates Embraer and De Havilland aircraft across North America, including Canada, US, Mexico, Caribbean. |
2,769 |
| 36 | 2,564 | |
| 37 |
BMO Nesbitt Burnsbmo.com
A full-service investment and wealth advisory organization within a financial group, offering comprehensive services through a large network of Investment Advisors |
2,478 |
| 38 |
Scotiabank - Global Banking and Marketsgbm.scotiabank.com
A global wholesale bank providing expertise, experience, and dedication to meet business needs while adhering to social media disclaimer |
2,464 |
| 39 |
Meridian Credit Unionmeridiancu.ca
An organization focused on creating an empowering and collaborative workplace, prioritizing employee well-being, community involvement, and long-term member relationships |
2,269 |
| 40 |
RBC Investor Servicesrbcis.com
Provides investment servicing solutions to asset managers, owners, insurers, and financial institutions, focusing on asset protection and growth worldwide. |
2,230 |
| 41 |
Michael Garron Hospitaltehn.ca
A vibrant community hospital in East Toronto providing high-quality, patient-centred healthcare services along the continuum of care with strong partnerships |
2,219 |
| 42 |
CIBC Melloncibcmellon.com
A Canadian company offering investment servicing solutions to institutional investors, with over C$26 trillion in assets under administration |
2,088 |
| 43 |
Fidelity Canadafidelity.ca
Providing trusted investment portfolios and financial services to Canadian individuals and institutions, supporting better financial futures nationwide. |
2,052 |
| 44 |
Northbridge Financial Corporationcareers.nbfc.com
A leading Canadian commercial property and casualty insurance group offering innovative solutions to protect businesses and support communities nationwide for 100 years |
1,956 |
| 45 |
BMO Commercial Bankcommercial.bmo.com
A financial partner providing strategic financing plans and customized solutions, leveraging global resources with localized knowledge to help businesses succeed |
1,917 |
| 46 |
Toronto Hydrotorontohydro.com
Operate and maintain electricity distribution system serving nearly 793,000 customers, ensuring safe, reliable power supply in Toronto. |
1,861 |
| 47 | 1,837 | |
| 48 |
First National Financial LPfirstnational.ca
A leading non-bank lender in Canada offering residential and commercial mortgages, with a strong focus on innovative financing solutions and exceptional customer service |
1,706 |
| 49 |
Tangerinetangerine.ca
A leading digital bank empowering Canadians to make smarter financial decisions with innovative products, fair fees, and award-winning client service |
1,695 |
| 50 |
BMO Private Wealthbmo.com
Provides comprehensive wealth management services to high-net-worth individuals and families, including planning, investments, banking, tax, trust, estate, and philanthropy guidance. |
1,689 |
| 51 |
Freedom Mobilefreedommobile.ca
Provides affordable wireless services with flat monthly fees, focusing on freedom from data overages and customer-friendly pricing. |
1,639 |
| 52 |
Raymond James Ltd.raymondjames.ca
A Canadian subsidiary of a US financial firm, providing investment services since 1962, with a history of acquisitions and a strong client asset base |
1,578 |
| 53 |
Baycrestbaycrest.org
Global leader in aging and brain health innovations, offering comprehensive care for aging patients, conducting top research in cognitive neuroscience, and promoting global knowledge exchange |
1,407 |
| 54 |
Enbridge Gasenbridgegas.com
A leading Canadian company providing natural gas storage, transmission, and distribution services to 5 million customers in Ontario and Ohio They focus on sustainable energy sources for a low-carbon future |
1,406 |
| 55 |
Public Health Ontariopublichealthontario.ca
A Crown corporation in Ontario dedicated to protecting public health, providing scientific evidence, expert guidance, and promoting health equity |
1,260 |
| 56 |
Brookfield Renewablebrookfield.com
Global leader in renewable power with a diverse portfolio of hydropower, wind, solar, and storage assets, driving innovation for sustainable, low-carbon energy solutions |
1,220 |
| 57 |
Princess Margaret Cancer Centreuhnresearch.ca
Leading cancer research center with internationally recognized scientists focusing on various aspects of cancer through cutting-edge research and state-of-the-art tools |
1,211 |
| 58 |
HOOPP (Healthcare of Ontario Pension Plan)hoopp.com
A leading pension plan in Ontario's healthcare sector, providing stable and reliable pensions for over 460,000 members, with a strong focus on innovation and diversity |
1,208 |
| 59 |
Women's College Hospitalwomenscollegehospital.ca
A pioneering healthcare institution focusing on women's health, innovation, and addressing Canada's healthcare challenges through interdisciplinary teams and equitable work environment |
1,200 |
| 60 |
Independent Electricity System Operator (IESO)ieso.ca
Manages Ontario's power grid, meeting real-time needs and planning for the future with a diverse team of professionals |
1,184 |
| 61 |
CareRx Corporationcarerx.ca
Leading provider of specialty pharmacy services to seniors in Canada, serving various healthcare facilities with timely delivery and effective medication management solutions |
1,089 |
| 62 |
Holland Bloorview Kids Rehabilitation Hospitalhollandbloorview.ca
Pioneering treatments, technologies, and programs for children with disabilities to fully participate in life through a world-class teaching hospital |
1,086 |
| 63 |
St. Joseph's Health Centre, Torontounityhealth.to
A Catholic teaching hospital in West Toronto, affiliated with the University of Toronto, dedicated to advancing community health through partnerships and resident input |
1,070 |
| 64 |
Interac Corp.interac.ca
Provides secure, interoperable digital payment and identification services connecting nearly 300 financial institutions for Canadians' everyday transactions. |
1,062 |
| 65 |
Canaccord Genuity Group Inc.canaccordgenuity.com
A leading independent financial services firm offering wealth management and capital markets services globally to individual, institutional, and corporate clients |
987 |
| 66 |
Northbridge Insurancenorthbridgeinsurance.ca
A Canadian-owned commercial insurance provider within the Northbridge Financial Corporation family, offering innovative risk mitigation solutions through a nationwide broker network |
916 |
| 67 |
Princess Margaret Cancer Centreuhn.ca
Keep up-to-date on the latest developments and changes at a prominent hospital through news articles and general information |
898 |
| 68 |
Home Trust Companyhometrust.ca
A leading Canadian financial institution helping people achieve their goals with innovative lending solutions since 1977 Welcome Home |
855 |
| 69 |
Tucowstucows.com
The company focuses on keeping people connected and the internet open through domain services, fiber internet, and telecom software solutions |
793 |
| 70 |
CBI Home Healthcbihomehealth.ca
Providing a wide range of healthcare services in various settings, including in-home care, to help patients of all ages achieve maximum function and independence |
744 |
| 71 |
RSA Canadarsagroup.ca
Global insurer with a long history in Canada, providing protection to individuals, families, and businesses, now a subsidiary of Intact Financial Corporation |
741 |
| 72 |
President's Choice Financialpcfinancial.ca
PC Financialยฎ offers banking and insurance products, payment cards that earn rewards, telecom services, and gift cards to enhance customer experience and relationships |
737 |
| 73 |
Sunwing Airlines Inc.sunwing.ca
An award-winning leisure carrier providing Canadians with direct flights to sunny destinations in the Caribbean, Mexico, Central America, and the US from 23 airports |
715 |
| 74 |
Desjardins Financial Security Independent Networkdfsin.ca
Distribution network providing personalized wealth management through independent advisors, offering diverse financial products and services backed by a major Canadian cooperative group. |
698 |
| 75 |
Toronto Fire Servicestoronto.ca
All-hazards municipal fire service in Toronto, Ontario providing full-time emergency response and fire protection services to the community |
695 |
| 76 |
Northland Power Inc.northlandpower.com
An independent power producer focused on sustainable infrastructure assets, including natural gas, solar, and wind energy projects for long-term value and environmental impact |
692 |
| 77 |
Zurich Canadazurichcanada.com
A leading multinational insurer with a 150-year history, providing risk management and insurance services to individuals and businesses globally |
645 |
| 78 |
TELUS Technologytelus.com
A team of skilled professionals focused on building customer-centric digital experiences, using lean and agile methodologies to innovate and learn |
639 |
| 79 |
Providence Healthcareunityhealth.to
A leader in rehabilitation, palliative care, and community programs in Toronto, focusing on stroke, neurological conditions, hip fractures, and geriatric care |
601 |
| 80 |
Rouge Valley Health Systemrougevalley.ca
Acute care community hospital offering emergency, obstetrics, surgery, mental health, and cardiac care services at multiple health sites in the region |
592 |
| 81 |
Hennick Bridgepoint Hospital, Sinai Healthsinaihealth.ca
Internationally recognized rehabilitation and complex care hospital focusing on research, care, and teaching for individuals with complex health conditions |
583 |
| 82 |
Munich Re Canadamunichre.com
Global reinsurance company providing innovative solutions through expertise, financial strength, and client-focused approach to make the world insurable |
548 |
| 83 |
The Canadian Depository for Securities Limited (CDS)cdsltd-cdsltee.ca
A provider of depository, clearing, settlement, regulatory, and information services for securities market participants, offering innovative solutions for competitive capital markets |
378 |
| 84 |
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 |
| 85 |
National Bank Independent Networkinfo.nbin.ca
Provider of custody, trade execution and brokerage solutions to independent portfolio managers, investment dealers, and fund managers in Canada, managing over $200 Billion in Assets under Administration |
204 |
| 86 |
Enwave Energy Corporationenwave.com
Fully integrated sustainable energy services provider with expertise in district energy systems, plant operations, engineering design, project management, consulting, and peer review |
166 |
| 87 |
ICS Couriericscourier.ca
Leading Canadian provider of B2B and B2C courier services since 1978, offering state-of-the-art tracking and flexible distribution solutions within TFI International group |
163 |
| 88 |
Hana Bank Canadahanabank.ca
A leading global financial group with 1,122 networks offering banking services, online banking, and ATMs, focused on providing excellent e-banking technology with top-notch security in Canada |
149 |
| 89 |
Ecclesiastical Insuranceecclesiastical.ca
Specialist commercial insurance provider committed to protecting organizations enriching lives, preserving communities, supporting initiatives, and serving customers nationwide |
148 |
| 90 |
RFA Bank of Canadarfa.ca
A Canadian-owned real estate investment firm with over $65 billion in assets under management, specializing in commercial, residential, and alternative mortgage lending solutions |
131 |
| 91 |
The Rekai Centresrekaicentre.com
A non-profit organization operating two long-term care homes in downtown Toronto, providing a warm and community-focused environment for residents |
131 |
| 92 |
Polaris Renewable Energy Inc.polarisrei.com
A Canadian company focused on acquiring, developing, and operating renewable energy projects in the Americas, with assets including geothermal, solar, and hydroelectric facilities |
82 |
| 93 |
SkyPower Globalskypower.com
Global developer and owner of utility-scale solar energy projects with extensive experience, partnerships, and projects worldwide, focusing on renewable energy sales |
80 |
| 94 |
Trans-Ontario Expresstrans-ontario.com
A world leader in freight services with 40+ years of experience, offering shipping solutions for all types of cargo with timely pick-ups and updates |
72 |
| 95 |
Cordelio Powercordeliopower.com
A renewable power developer and operator in North America, focused on growth and development efforts in select power markets |
71 |
| 96 |
Brookfield Annuitybrookfieldannuity.com
A Canadian company specializing in group annuity policies for de-risking pension plans, offering flexible solutions and expertise in the pension sector |
50 |
| 97 |
OYA Renewablesoyarenewables.com
A global developer, integrator, and financier of Solar PV Projects, specializing in distributed generation and utility scale solar PV projects worldwide |
41 |
| 98 |
RBC Insurancerbcinsurance.com
Provider of comprehensive insurance solutions including life, health, home, auto, travel, wealth, reinsurance, creditor, and business insurance for individuals, businesses, and groups |
40 |
| 99 |
Nexus Energy Inc.nexusenergy.com
Specializing in wholesale energy and risk management, the company moves electricity across Eastern Canada and the North Eastern United States, with plans for expansion |
38 |
| 100 |
Dedicated Freight Systemsdedicatedfreight.ca
Freight brokerage across Canada and USA, warehousing with storage and distribution, dedicated logistics with custom solutions and asset management. |
20 |
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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 Oct 24, 2026.
More company lists in Toronto
- The largest companies in Toronto 1,663
- Financial services firms in Toronto 210
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- SaaS companies in Toronto 132
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- IT Services and IT Consulting companies in Toronto 75
- Hospitals and Health Care companies in Toronto 61
- Non-profit Organizations companies in Toronto 55
- Insurance companies in Toronto 51
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- AI-native companies in Toronto 47
- Education providers in Toronto 45
- Higher Education companies in Toronto 43
- Public sector organisations in Toronto 43
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- Healthcare providers in Toronto 41
- Technology, Information and Internet companies in Toronto 36
- IT services companies in Toronto 35
The same list elsewhere in Canada
- Critical infrastructure operators in Canada 569
- Critical infrastructure operators in Ontario 262
- Critical infrastructure operators in the province of Quebec 101
- Critical infrastructure operators in Alberta 94
- Critical infrastructure operators in British Columbia 51
- Critical infrastructure operators in Calgary 64
- Critical infrastructure operators in Montreal 43