# Education providers headquartered in Ottawa
Tamtam tracks 30 education providers headquartered in Ottawa. This list ranks all of them by number of employees on LinkedIn, led by University of Ottawa, Carleton University and Ottawa-Carleton District School Board (OCDSB). Their median headcount is 538. Half of them were founded in 1969 or later.
These Ottawa-based organizations are primarily large educational institutions, including universities, colleges, and school boards, alongside several significant non-profit and public service entities. The University of Ottawa, the largest bilingual university globally, and Carleton University, known for its research and teaching, are prominent. Other key organizations include the Ottawa-Carleton District School Board, providing diverse educational programs, and Algonquin College, which focuses on hands-on learning.
A clear pattern among these organizations is their strong focus on education and public service within the Ottawa region. While higher education institutions like Collège La Cité and the University of Ottawa Heart Institute are well-represented, the presence of entities such as the Canadian Red Cross and the Canada School of Public Service highlights a broader commitment to community welfare and governmental training.
π¨π¦ Ottawa Β· 30 companies Β· Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [University of Ottawa](https://www.tamtam.ai/c/university-of-ottawa) (uottawa.ca)
The company is the largest bilingual university in the world, offering education in English and French with a focus on research and global advancements | Higher Education | π¨π¦ Ottawa | 12,220 | |
| 2 | [Carleton University](https://www.tamtam.ai/c/carleton-university) (carleton.ca)
University located near government and high tech companies, combining research and teaching to provide superior education and solve real problems. | Higher Education | π¨π¦ Ottawa | 6,886 | 1942 |
| 3 | [Ottawa-Carleton District School Board (OCDSB)](https://www.tamtam.ai/c/ottawa-carleton-district-school-board-ocdsb) (ocdsb.ca)
A large school board in Eastern Ontario offering a wide range of programs to support students in academics, arts, athletics, and technology | Education Administration Programs | π¨π¦ Ottawa | 6,863 | |
| 4 | [Algonquin College of Applied Arts and Technology](https://www.tamtam.ai/c/algonquin-college-of-applied-arts-and-technology) (algonquincollege.com)
Leading college in eastern Ontario offering diverse hands-on learning programs, including degrees, diplomas, and certificates, with a strong focus on student success and innovation | Higher Education | π¨π¦ Ottawa | 4,972 | |
| 5 | [Ottawa Catholic School Board](https://www.tamtam.ai/c/ottawa-catholic-school-board) (ocsb.ca)
Providing faith-based, inclusive education with English and French programs, fostering critical thinking, creativity, well-being, and community connections. | Education Administration Programs | π¨π¦ Ottawa | 4,559 | 1856 |
| 6 | [Canadian Red Cross](https://www.tamtam.ai/c/canadian-red-cross) (redcross.ca)
An organization within the International Red Cross and Red Crescent Movement providing disaster relief, emergency response, prevention training, capacity building, and community health services | Non-profit Organizations | π¨π¦ Ottawa | 4,268 | |
| 7 | [Collège La Cité](https://www.tamtam.ai/c/college-la-cite-ottawa) (collegelacite.ca)
Discover life in the largest French-speaking college in Ontario Stay informed about job opportunities Dynamic, inclusive environment with top employer rankings Follow on social media for more | Higher Education | π¨π¦ Ottawa | 2,069 | 1990 |
| 8 | [Conseil des Γ©coles publiques de l'Est de l'Ontario (CEPEO)](https://www.tamtam.ai/c/conseil-des-ecoles-publiques-de-l-est-de-l-ontario-cepeo) (cepeo.on.ca)
A leading public school board in Eastern Ontario offering diverse and inclusive educational opportunities for students and employees to thrive | Education Administration Programs | π¨π¦ Ottawa | 1,604 | 1998 |
| 9 | [Calian Group](https://www.tamtam.ai/c/calian-group) (calian.com)
Employees engineer reliable solutions solving complex problems for healthcare, communications, learning, and security sectors. Diverse products, services and solutions globally. | Strategic Management Services | π¨π¦ Ottawa | 1,396 | 1982 |
| 10 | [University of Ottawa Heart Institute](https://www.tamtam.ai/c/university-of-ottawa-heart-institute) (ottawaheart.ca)
A leading cardiovascular health center in Canada providing high-tech, personalized care, advancing cardiac medicine through research, and pioneering new treatments globally | Hospitals and Health Care | π¨π¦ Ottawa | 1,087 | |
| 11 | [Canada School of Public Service \| Γcole de la fonction publique du Canada](https://www.tamtam.ai/c/canada-school-of-public-service-ecole-de-la-fonction-publique-du-canada) (csps-efpc.gc.ca)
The Canada School of Public Service provides tailored learning products for the Canadian Public Service, helping employees apply relevant knowledge in their work environments | Government Administration | π¨π¦ Ottawa | 866 | 2004 |
| 12 | [Digital Opportunity Trust](https://www.tamtam.ai/c/digital-opportunity-trust) (dotrust.org)
Support youth innovators to develop and apply digital solutions, collaborating with sectors to drive inclusive community transformation globally. | Non-profit Organizations | π¨π¦ Ottawa | 695 | 2001 |
| 13 | [Royal College of Physicians and Surgeons of Canada](https://www.tamtam.ai/c/royal-college-of-physicians-and-surgeons-of-canada) (royalcollege.ca)
Specialist medical education organization partnering with healthcare collaborators to set standards, promote research, advocacy, and continuous improvement for specialist physicians | Hospitals and Health Care | π¨π¦ Ottawa | 678 | 1929 |
| 14 | [World University Service of Canada (WUSC - EUMC)](https://www.tamtam.ai/c/world-university-service-of-canada-wusc-eumc) (wusc.ca)
A Canadian non-profit organization empowering youth worldwide through education, economic opportunities, and resettlement support for student refugees | International Trade and Development | π¨π¦ Ottawa | 653 | 1957 |
| 15 | [Collège La Cité](https://www.tamtam.ai/c/college-la-cite) (collegelacite.ca)
The company is the largest French-language applied arts and technology college in Ontario, offering over 90 programs to 4700 students | Higher Education | π¨π¦ Ottawa | 538 | |
| 16 | [National Arts Centre \| Centre national des Arts](https://www.tamtam.ai/c/national-arts-centre-centre-national-des-arts) (nac-cna.ca)
A national arts organization in Canada collaborates with artists and organizations to create a stage for performing arts, youth education, and new media initiatives | Performing Arts | π¨π¦ Ottawa | 498 | 1969 |
| 17 | [Canadian Medical Protective Association](https://www.tamtam.ai/c/canadian-medical-protective-association) (cmpa-acpm.ca)
A leading provider of medical liability protection and professional development for Canadian physicians, offering risk management education and legal advice | Hospitals and Health Care | π¨π¦ Ottawa | 481 | 1901 |
| 18 | [Croix-Rouge canadienne](https://www.tamtam.ai/c/croix-rouge-canadienne) (croixrouge.ca)
The company helps people and communities in need in Canada and around the world, strengthening their resilience through fundamental principles | Philanthropic Fundraising Services | π¨π¦ Ottawa | 425 | 1896 |
| 19 | [Telfer School of Management at the University of Ottawa](https://www.tamtam.ai/c/telfer-school-of-management-at-the-university-of-ottawa) (telfer.uottawa.ca)
An educational institution dedicated to shaping purpose-driven leaders and responsible managers for a greener, healthier, wealthier, and more prosperous future globally | Higher Education | π¨π¦ Ottawa | 413 | 1969 |
| 20 | [St. John Ambulance Canada \| Ambulance Saint-Jean](https://www.tamtam.ai/c/st-john-ambulance-canada-ambulance-saint-jean) (sja.ca)
Leading provider of first aid and CPR training, offering customizable courses, account management, and preferential pricing on life-saving programs and safety products | Consumer Services | π¨π¦ Ottawa | 399 | 1883 |
| 21 | [Saint Paul University](https://www.tamtam.ai/c/saint-paul-university) (ustpaul.ca)
A bilingual university in Ottawa offering undergraduate and graduate programs in various disciplines with a focus on the human experience | Higher Education | π¨π¦ Ottawa | 383 | 1848 |
| 22 | [Ingenium](https://www.tamtam.ai/c/ingenium) (ingeniumcanada.org)
Ingenium creates a collaborative space celebrating creativity and human ingenuity by telling stories of innovation through three museums focusing on science and technology | Museums | π¨π¦ Ottawa | 354 | |
| 23 | [Bureau de l'Γ©ducation internationale du CECCE](https://www.tamtam.ai/c/bureau-de-l-education-internationale-du-cecce) (international.ecolecatholique.ca)
A leading French-language school network outside Quebec, offering high academic achievement, bilingual education from grade 4, and diverse post-secondary opportunities | Primary and Secondary Education | π¨π¦ Ottawa | 347 | 1998 |
| 24 | [Acadium](https://www.tamtam.ai/c/acadium) (acadium.com)
This organization provides free and accessible education to individuals worldwide, having trained 90,000 students and partnered with 40,000 businesses | E-Learning Providers | π¨π¦ Ottawa | 328 | 2016 |
| 25 | [Perley Health](https://www.tamtam.ai/c/perley-health) (perleyhealth.ca)
Senior and Veteran community providing long-term care, independent living, clinical services, research, education, and innovative care for Canada's aging population | Hospitals and Health Care | π¨π¦ Ottawa | 322 | 1995 |
| 26 | [Andrew Fleck Children's Services](https://www.tamtam.ai/c/andrew-fleck-children-s-services) (afchildrensservices.ca)
A leading charitable organization in Ottawa providing high-quality early learning and family support services for children and families since 1911 | Individual and Family Services | π¨π¦ Ottawa | 186 | 1911 |
| 27 | [Sprott School of Business at Carleton University](https://www.tamtam.ai/c/sprott-school-of-business-at-carleton-university) (sprott.carleton.ca)
Challenging business to make a positive impact, creating learning experiences and scholarship to improve lives worldwide, located in Ottawa | Higher Education | π¨π¦ Ottawa | 183 | 1966 |
| 28 | [Actua](https://www.tamtam.ai/c/actua-ottawa) (actua.ca)
A Canadian charity providing STEM experiences to inspire youth, break barriers, and promote continued studies and career opportunities nationwide | Civic and Social Organizations | π¨π¦ Ottawa | 134 | 1993 |
| 29 | [LemonadeLXP](https://www.tamtam.ai/c/lemonadelxp) (lemonadelxp.com)
A company offering an award-winning learning experience and digital adoption platform to transform corporate training, upskill employees, and facilitate tech adoption | E-Learning Providers | π¨π¦ Ottawa | 34 | 2018 |
| 30 | [aggregate intellect](https://www.tamtam.ai/c/aggregate-intellect) (ai.science)
Offering fractional generative AI labs for seamless integration of AI into sales workflows, empowering industries with on-demand AI expertise | Research Services | π¨π¦ Ottawa | 14 | 2019 |
## 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 Ottawa
- [The largest companies in Ottawa](https://www.tamtam.ai/l/largest-companies-ottawa) (350)
- [Public sector organisations in Ottawa](https://www.tamtam.ai/l/public-sector-organisations-ottawa) (49)
- [Multinational companies in Ottawa](https://www.tamtam.ai/l/multinational-companies-ottawa) (42)
- [Critical infrastructure operators in Ottawa](https://www.tamtam.ai/l/critical-infrastructure-operators-ottawa) (30)
- [Government Administration companies in Ottawa](https://www.tamtam.ai/l/government-administration-companies-ottawa) (30)
## The same list elsewhere in Canada
- [Education providers in Ontario](https://www.tamtam.ai/l/education-companies-ontario) (276)
- [Education providers in the province of Quebec](https://www.tamtam.ai/l/education-companies-province-of-quebec) (150)
- [Education providers in British Columbia](https://www.tamtam.ai/l/education-companies-british-columbia) (78)
- [Education providers in Alberta](https://www.tamtam.ai/l/education-companies-alberta) (64)
- [Education providers in Toronto](https://www.tamtam.ai/l/education-companies-toronto) (109)
- [Education providers in Montreal](https://www.tamtam.ai/l/education-companies-montreal) (53)
- [Education providers in Vancouver](https://www.tamtam.ai/l/education-companies-vancouver) (25)
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Source: https://www.tamtam.ai/l/education-companies-ottawa