The research institutes in Toronto are mainly large organizations in higher education and healthcare. This list includes the University of Toronto, a leading Canadian university focused on research and innovation, and Unity Health Toronto, a health network providing primary and specialized care. Also featured are The Hospital for Sick Children, a pediatric hospital integrating patient care and research, and York University, which educates students and drives societal change through research.
A clear pattern among these institutions is their focus on both education and research, often intertwined with patient care. Many of these organizations, such as St. Michael's Hospital and Sinai Health, emphasize their role in medical education and training future healthcare leaders, alongside their research endeavors.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 |
York Universityyorku.ca
Educates students, fosters career advancement, and drives positive societal change through research and community engagement. |
11,154 | |||
| 3 |
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 | |||
| 4 |
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 | |||
| 5 |
Toronto Metropolitan Universitytorontomu.ca
Innovative urban university in Toronto, focusing on creativity, entrepreneurship, inclusivity, and global community engagement to serve societal needs |
8,478 | |||
| 6 |
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 | |||
| 7 | 4,477 | ||||
| 8 |
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 | |||
| 9 |
University of Toronto Scarboroughutsc.utoronto.ca
Innovative university campus promoting diversity, academic excellence, experiential learning, research partnerships, and world-changing ideas in a vibrant environment |
1,723 | |||
| 10 |
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 | |||
| 11 |
OCAD Universityocadu.ca
A leading institution in Canada, specializing in art and design education for aspiring students to excel in their creative pursuits |
1,343 | |||
| 12 |
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 | |||
| 13 |
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 | |||
| 14 |
Temerty Faculty of Medicine, University of Torontotemertymedicine.utoronto.ca
Leader in medical research and innovation, collaborating with diverse partners to address global health challenges for over a century |
913 | |||
| 15 |
University of Toronto - Rotman School of Managementrotman.utoronto.ca
A global center for research and teaching excellence in Canada, Rotman School of Management fosters transformative learning and public engagement for creating value in business and society |
857 | |||
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| 16 |
Ontario Institute for Studies in Education of the University of Torontooise.utoronto.ca
A leading research and graduate institute in education, offering world-class programs for careers in teaching and learning |
677 | |||
| 17 |
Royal Ontario Museumrom.on.ca
Showcasing art, culture, and nature from around the world since 1914, with over 13 million objects, including mummies, sculpture, meteorites, and dinosaurs |
629 | |||
| 18 |
Vector Institutevectorinstitute.ai
A non-profit organization dedicated to AI research, specializing in machine and deep learning Collaborates with various entities to advance AI adoption and commercialization |
603 | |||
| 19 |
York University - Osgoode Hall Law Schoolosgoode.yorku.ca
A prestigious law school in Toronto offering a range of clinical programs, publications, and the largest law library in the Commonwealth |
452 | |||
| 20 |
Dalla Lana School of Public Health, University of Torontodlsph.utoronto.ca
This company is a prominent organization specializing in public health education, research, and services that have a global and local impact |
442 | |||
| 21 |
ICESices.on.ca
Non-profit organization using population-based health data to produce unbiased knowledge for improving health care policy and decision-making |
437 | |||
| 22 |
Lassonde School of Engineering - York Universitylassonde.yorku.ca
The company prepares engineers and scientists to tackle complex global challenges and seize opportunities through a holistic and innovative approach |
400 | |||
| 23 |
Leslie Dan Faculty of Pharmacy, University of Torontopharmacy.utoronto.ca
A leading Canadian pharmacy school offering cutting-edge educational programs and research focusing on modern drug therapy and healthcare innovation |
372 | |||
| 24 |
Canadian Memorial Chiropractic Collegecmcc.ca
A leading chiropractic institution offering rigorous academic and clinical preparation, research opportunities, and advanced technology to enhance patient care and student education |
355 | |||
| 25 |
Ontario Institute for Cancer Researchoicr.on.ca
A collaborative research institute focused on accelerating cancer discoveries, improving patient outcomes, and maximizing economic benefits in Ontario and worldwide |
344 | |||
| 26 | 207 | ||||
| 27 |
Faculty of Dentistry | University of Torontodentistry.utoronto.ca
A leading Canadian dental school offering all specialties, training dentists and scientists, conducting groundbreaking research, and providing care to thousands annually |
182 | |||
| 28 |
G7 Research Groupg7.utoronto.ca
Global network of scholars and professionals providing independent information, analysis, and research on the G7/8 and related institutions since 1987 |
100 | |||
| 29 |
Ted Rogers Centre for Heart Researchtedrogersresearch.ca
The organization is a collaborative venture focused on transforming prevention, management, and care of heart disease, particularly heart failure, through research and clinical care |
47 | |||
| 30 |
Centre for Urban Energy at Toronto Metropolitan University
An academic-industry partnership focusing on urban energy solutions like clean technologies, energy policy, storage, electric vehicles, smart grids, and smart homes |
21 | |||
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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 Nov 12, 2026.
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- Financial Services companies in Toronto 163
- SaaS companies in Toronto 160
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- Critical infrastructure operators in Toronto 120
- Professional services firms in Toronto 117
- Retail chains in Toronto 116
- Education providers in Toronto 109
- IT Services and IT Consulting companies in Toronto 100
- Companies with a mobile app in Toronto 97
- Companies with in-house R&D in Toronto 93
- Subscription businesses in Toronto 93
- Investment Management companies in Toronto 92
- Manufacturers in Toronto 88
- Publicly traded companies in Toronto 86
- AI companies in Toronto 82
- Consulting firms in Toronto 70
- Healthcare providers in Toronto 68
- Advertising Services companies in Toronto 66
- Hospitals and Health Care companies in Toronto 66
- IT services companies in Toronto 66
- Public sector organisations in Toronto 64
The same list elsewhere in Canada
- Research institutes in Canada 156
- Research institutes in Ontario 64
- Research institutes in the province of Quebec 52