| # | 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 |
Four Seasonsfourseasons.com
Global operator of over one hundred thirty luxury hotels, resorts, and fifty-five residential properties across forty-seven countries focused on high-end hospitality innovation. |
43,141 |
| 7 |
Thomson Reutersthomsonreuters.com
It offers news and information tools for professionals in legal, regulatory, and tax sectors, helping them navigate complex environments. |
36,640 |
| 8 |
Manulifemanulife.com
Global financial services group providing insurance, wealth management, and asset management solutions to millions of customers worldwide. |
34,375 |
| 9 |
Shoppers Drug Martshoppersdrugmart.ca
National chain of pharmacies across Canada, emphasizing professional expertise and personalized service in meeting customers' health care needs for over 50 years |
33,036 |
| 10 |
Collierscolliers.com
Offers real estate services, engineering solutions, and investment management, focusing on client success and delivering strong financial returns. |
29,561 |
| 11 |
Canadian Tire Corporationcanadiantire.ca
Conglomerate offering retail products across various categories, financial services, and real estate management, also owning a technical outdoor brand. |
29,479 |
| 12 |
University of Torontodefygravitycampaign.utoronto.ca
Leading Canadian university focused on research, innovation, and global education to address pressing societal challenges and prepare students for success |
28,832 |
| 13 |
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 |
| 14 |
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 |
| 15 |
McCain Foodsmccain.com
Global leader in prepared potato products, including French Fries and appetizers, focusing on quality, sustainability, and community impact. |
22,000 |
| 16 |
Intactintactfc.com
Providing insurance solutions to help individuals, businesses, and society thrive during good times and bounce back during challenging times |
21,693 |
| 17 |
Celesticacelestica.com
Global leader in providing design, manufacturing, and supply chain solutions for aerospace, defense, communications, healthtech, and more, delivering innovative solutions for complex challenges |
16,022 |
| 18 |
Barrick Mining Corporationbarrick.com
A company focused on owning high-quality gold and copper assets, managed by top talent to provide strong returns and benefits to stakeholders |
15,486 |
| 19 |
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 |
| 20 |
University Health Networkuhn.ca
Largest Canadian research hospital network specializing in patient care, medical research, education, and fundraising for advanced healthcare services. |
11,930 |
| 21 |
Toronto District School Boardtdsb.on.ca
Serving over 239,000 students and 100,000 adult learners across 582 schools, focusing on academic performance and community support. |
11,719 |
| 22 |
York Universityyorku.ca
Educates students, fosters career advancement, and drives positive societal change through research and community engagement. |
11,154 |
| 23 |
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 |
| 24 |
KPMG Canadakpmg.com
Providing audit, tax, and advisory services to public, private, nonprofit, and public sector organizations across Canada with professionalism. |
10,017 |
| 25 |
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 |
| 26 |
Restaurant Brands Internationalrbi.com
Operating global quick service restaurant brands including Tim Hortons, Burger King, Popeyes, Firehouse Subs, focusing on sustainable food, planet, and people outcomes. |
9,244 |
| 27 |
Other.™weareother.ca
Specialized paid media and performance creative agency helping marketers optimize media spend, achieve targets, and outperform competition with proven methodologies and successful campaigns |
9,168 |
| 28 |
Royal LePageroyallepage.ca
A leading provider of real estate services in Canada, with a network of 20,000 professionals, offering innovative technology, support, and charitable contributions |
9,029 |
| 29 |
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 |
| 30 |
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 |
| 31 |
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 |
| 32 |
The Hospital for Sick Childrensickkids.ca
Leading pediatric hospital integrating patient care, research, and education to advance children's health and develop innovative treatments globally. |
8,636 |
| 33 |
Toronto Metropolitan Universitytorontomu.ca
Innovative urban university in Toronto, focusing on creativity, entrepreneurship, inclusivity, and global community engagement to serve societal needs |
8,478 |
| 34 |
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 |
| 35 |
Tim Hortonstimhortons.ca
Operates a large quick-service restaurant chain, offering diverse menu items to customers across Canada and North America, a beloved Canadian brand. |
6,960 |
| 36 | 6,848 | |
| 37 |
The Home Depot Canadacareers.homedepot.ca
A leading home improvement retailer in Canada, with 182 stores nationwide and a focus on customer needs and industry expertise |
6,819 |
| 38 | 6,765 | |
| 39 |
Seneca Polytechnicsenecapolytechnic.ca
Innovative, daring organization encouraging advancement and leadership in polytechnic education |
6,721 |
| 40 |
Kinross Gold Corporationkinross.com
A senior gold mining organization with diverse mines and projects in multiple countries, focusing on operational excellence, responsible mining, and sustainability |
6,720 |
| 41 |
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 |
| 42 |
Toronto Catholic District School Boardtcdsb.org
A leading Catholic school board in Toronto providing educational excellence rooted in Gospel values to over 84,000 students across 195 schools |
6,590 |
| 43 |
Apotex Inc.apotex.com
A global pharmaceutical company producing affordable high-quality medicines, with divisions focusing on generics, biosimilars, consumer products, and API manufacturing |
6,548 |
| 44 |
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 |
| 45 |
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 |
| 46 |
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 |
| 47 |
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 |
| 48 |
RBC Dominion Securitiesrbcds.com
A leading provider of wealth management services in Canada, offering sound financial planning, trusted investment advice, and unparalleled solutions to individuals and organizations |
6,034 |
| 49 |
Manulife Wealth & Asset Managementmanulifeim.com
Global investment management, financial advice, and retirement planning services with tailored solutions and responsible investing across public and private markets. |
5,984 |
| 50 |
Hydro Onehydroone.com
Electricity transmission and distribution across Ontario, ensuring reliable power delivery and supporting infrastructure for homes and businesses. |
5,671 |
| 51 | 5,666 | |
| 52 |
PwC Canadapwc.com
Delivering audit assurance, risk management, tax, and consulting services to build trust and solve complex business problems through collective industry expertise. |
5,523 |
| 53 |
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 |
| 54 |
George Brown Polytechnicgeorgebrown.ca
Leading college in Toronto with industry connections, offering real-world experience through diverse programs for full and part-time students Visit website for details |
5,381 |
| 55 |
Humber Collegehumber.ca
Provides diverse full-time, part-time, and online programs focused on career readiness, serving thousands of students with quality teaching. |
5,249 |
| 56 |
Agnico Eagle Mines Limitedagnicoeagle.com
A senior Canadian gold mining company with mines in Canada, Finland, Mexico, and Australia, focused on producing and exploring precious metals |
5,223 |
| 57 |
Centennial Collegecentennialcollege.ca
Leading Ontario community college with diverse campus locations, offering innovative programs, exemplary teaching, and extensive partnership building since 1966 |
5,076 |
| 58 |
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 |
| 59 |
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 |
| 60 |
BDO Canadabdo.ca
A leading provider of professional services in Canada, offering assurance, tax, and consulting services with a people-first approach to talent experience |
4,858 |
| 61 |
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 |
| 62 | 4,477 | |
| 63 |
Attorney General | Procureur généralontario.ca
The company provides fair, equitable, and accessible justice services in Ontario It offers legal advice, conducts litigation, administers court services, and oversees various justice-related agencies |
4,443 |
| 64 |
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 |
| 65 |
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 |
| 66 |
Workplace Safety and Insurance Board (WSIB)wsib.ca
A provider of insurance, benefits, and support to individuals who suffer work-related injuries or illnesses, helping them return to work |
4,179 |
| 67 |
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 |
| 68 |
ABC Technologiesabctechnologies.com
A global leader in plastics and injection molding technology for the automotive industry, focusing on innovation, sustainability, and creating career opportunities |
4,059 |
| 69 |
D+Hfinastra.com
Merger of D+H and Misys creating Finastra, a leading global fintech company providing innovative financial technology solutions. |
4,037 |
| 70 |
Education | Éducationontario.ca
The organization oversees Ontario's education and child care systems, helping children develop skills for lifelong success and contributing to a prosperous province |
3,771 |
| 71 |
Health | Santéontario.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 |
| 72 |
CBI Healthcbihealth.ca
Leading provider of rehabilitation and home health services in Canada, with a national team dedicated to improving clients' physical and mental health |
3,638 |
| 73 |
Revera Inc.reverainc.com
Leader in managing high quality senior living-focused real estate, with deep sector roots enriching residential experience for seniors in multiple countries |
3,631 |
| 74 |
Private Practice in Psychotherapy and Counselinglinkedin.com
Providing psychotherapy services to adults and couples to support their mental and emotional well-being |
3,593 |
| 75 |
CSA Testing & Certificationcsagroup.org
Development of safety and technical standards combined with global testing, inspection, and certification services for diverse industries. |
3,522 |
| 76 |
Avison Youngavisonyoung.us
Global real estate advisor creating value through collective intelligence, creativity, and agile thinking, with a focus on making a positive impact on people's lives |
3,517 |
| 77 |
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 |
| 78 |
Spin Masterspinmaster.com
Global children's entertainment company creating toys, digital games, and original content including popular brands and preschool franchises. |
3,140 |
| 79 |
Ryerson Universitytorontomu.ca
Innovative urban university in downtown Toronto focusing on entrepreneurship, offering over 100 programs to 45,300 students with a commitment to community engagement |
3,137 |
| 80 |
MLSE (Maple Leaf Sports & Entertainment Partnership)mlse.com
A leading provider of sport and entertainment experiences in North America, owning major sports teams and operating venues for live events |
3,135 |
| 81 |
1Password1password.com
Protects business data, employee accounts, and sensitive information with secure access, sharing, and integration into existing systems. |
3,074 |
| 82 |
Black & McDonald Limitedblackandmcdonald.com
Integrated multi-trade service provider delivering high-quality construction, facilities management, and technical solutions across North America with operational excellence. |
3,066 |
| 83 |
CI Financialcifinancial.com
An independent company providing global asset management and wealth advisory services with a focus on high-quality investments and innovative strategies |
3,051 |
| 84 |
Ontario Health | Santé Ontarioontariohealth.ca
Government agency ensuring high-quality, patient-centred healthcare services across Ontario, promoting health equity and supporting healthcare professionals. |
3,020 |
| 85 |
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 |
| 86 |
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 |
| 87 |
Mosaic North Americamosaic.com
An integrated marketing agency in North America, creating connected brand experiences using data-led insights, expertise in various areas, and a 30-year history |
2,946 |
| 88 |
Corus Entertainmentcorusent.com
Development and delivery of diverse multimedia content including television, radio, digital platforms, and streaming services for global audiences. |
2,864 |
| 89 |
Softchoicesoftchoice.com
IT solutions provider enabling organizations to be agile and innovative, move to the cloud, create smarter workplaces, and make informed technology decisions for success |
2,839 |
| 90 |
Toronto Police Servicetps.ca
Providing comprehensive police services with a focus on community partnership, innovation, training, and diverse career opportunities for members. |
2,815 |
| 91 |
Scotia Wealth Managementscotiawealthmanagement.com
Wealth management professionals offering investment services, wealth solutions, and comprehensive financial planning to affluent individuals, entrepreneurs, and families |
2,809 |
| 92 |
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 |
| 93 |
Livingston Internationallivingstonintl.com
Providing customs brokerage, trade consulting, global trade management, freight forwarding, and innovative automation technology solutions worldwide for businesses. |
2,735 |
| 94 |
LABORATORYwearelaboratory.com
A full-service agency creating innovative marketing solutions without boundaries, collaborating closely with forward-thinking brands to deliver impactful strategies and designs |
2,731 |
| 95 |
H&R REIThr-reit.com
One of Canada's largest real estate investment trusts with a diverse portfolio of high-quality office, retail, industrial, and residential properties in North America |
2,677 |
| 96 |
Paragon Securityparagonsecurity.ca
Ontario's largest privately-owned security provider offering guard services, training, and consulting to a wide range of industries since 1976 |
2,637 |
| 97 |
Yamana Gold Inc.panamericansilver.com
Canadian-based gold producer with mining operations and development projects located throughout the Americas, focusing on responsible resource extraction. |
2,628 |
| 98 | 2,564 | |
| 99 |
Food Basicsfoodbasics.ca
Discount grocery store chain in Ontario offering fresh products, wide selection, and low prices since 1995 as part of a larger food and pharmacy corporation |
2,538 |
| 100 |
Element Fleet Managementelementfleet.com
Providing tailored fleet management solutions and expert support to reduce costs and simplify business operations across entire fleet lifecycles. |
2,504 |
Turn this list into pipeline
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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 Oct 8, 2026.
More company lists in Toronto
- Financial Services companies in Toronto 152
- SaaS companies in Toronto 132
- Software Development companies in Toronto 106
- Investment Management companies in Toronto 82
- 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
- Retail companies in Toronto 51
- Real Estate companies in Toronto 50
- Advertising Services companies in Toronto 48
- AI-native companies in Toronto 47
- Higher Education companies in Toronto 43
- Technology, Information and Internet companies in Toronto 36
- Transportation, Logistics, Supply Chain and Storage companies in Toronto 30
- Law Practice companies in Toronto 29
- Food and Beverage Services companies in Toronto 26
- Mining companies in Toronto 25
The same list elsewhere in Canada
- The largest companies in Canada 9,391
- The largest companies in Montreal 857
- The largest companies in Calgary 601
- The largest companies in Vancouver 511
- The largest companies in Mississauga 438
- The largest companies in Ottawa 314
- The largest companies in Edmonton 226
- The largest companies in Quebec City 212
- The largest companies in Winnipeg 174
- The largest companies in Waterloo 67
- The largest companies in Halifax 64