| # | Company | Employees |
|---|---|---|
| 1 |
Environment and Climate Change Canadacanada.ca
Inform Canadians on environmental protection, implement clean growth framework, collaborate with partners, conduct research, develop policies, enforce laws. |
6,865 |
| 2 |
Emploi et Développement social Canada (EDSC) / Employment and Social Development Canada (ESDC)canada.ca
A leading organization dedicated to supporting Canadians through life transitions, offering job opportunities, programs, and services for workers and employers |
6,613 |
| 3 |
Indigenous Services Canada | Services aux Autochtones Canadacanada.ca
The company aims to create systemic change in how the federal government delivers services to Indigenous peoples, promoting consistency, quality, and accountability |
3,606 |
| 4 |
Élections Canada | Elections Canadaelections.ca
An independent agency of Parliament responsible for administering federal elections, by-elections, and referendums in Canada |
2,181 |
| 5 |
CISSS de l'Outaouaiscisss-outaouais.gouv.qc.ca
The organization in Outaouais region works to provide accessible and integrated health and social services to improve community's well-being |
1,761 |
| 6 |
Converge Technology Solutions Corp.pellera.com
A services-led IT & Cloud Solutions provider offering advanced analytics, cybersecurity, cloud platforms, and digital workplace offerings with global support |
1,709 |
| 7 |
Ville de Gatineaugatineau.ca
Offers diverse municipal job opportunities focusing on employee well-being, values, and career growth in a large Quebec city. |
1,475 |
| 8 |
Patrimoine canadien -- Canadian Heritagecanada.ca
Supports arts, culture, heritage, and official languages, fostering dynamic cultural experiences and building creative communities for a confident, forward-thinking Canada |
1,405 |
| 9 |
Université du Québec en Outaouaisuqo.ca
A public Francophone university providing quality education and research in Quebec, Canada, with over 7,300 students, 200 professors, and renowned research teams |
1,370 |
| 10 |
Commission de la fonction publique du Canada | Public Service Commission of Canadacanada.ca
Promoting and maintaining a non-partisan, merit-based, and representative public service for all Canadians Managing tools for public service recruitment |
709 |
| 11 |
Centre de services scolaire des Draveurscssd.gouv.qc.ca
The organization aims to provide educational services to over 20,000 students through a network of schools, adult education centers, and professional training facilities, employing 3,500 staff members |
666 |
| 12 |
Cégep de l'Outaouaiscegepoutaouais.qc.ca
Established in 1967, this institution offers higher education in Quebec, providing pre-university and technical training programs It has evolved through various name changes |
607 |
| 13 |
CRTCcrtc.gc.ca
Dedicated to providing Canadians with access to a top-tier communication system that fosters innovation and enriches lives Offers job opportunities |
601 |
| 14 |
Western Quebec School Boardwesternquebec.ca
An English school board focused on developing lifelong learners through bilingual education, promoting social, emotional, and moral development for students |
532 |
| 15 |
RCAANC-CIRNACcanada.ca
CIRNAC works to strengthen relationships between Canada and Indigenous peoples, support self-determination, and lead government initiatives in the North |
508 |
| 16 |
Canadian Intellectual Property Office / Office de la propriété intellectuelle du Canadaised-isde.canada.ca
The company is a government agency responsible for administering and processing intellectual property in Canada, including patents, trademarks, copyright, and industrial designs |
446 |
| 17 |
Pharmacie Jean Coutu
A cosmetics company located in Gatineau, Quebec, offering a variety of beauty and skincare products to customers in Canada |
422 |
| 18 |
CIAUD CANADA | Comité International pour l'Aide d'Urgence et le Développementciaud.ca
Providing humanitarian assistance in crisis situations, promoting community development in developing countries, focusing on partnership, transparency, integrity, and accountability |
408 |
| 19 |
Centre de services scolaire des Portages-de-l’Outaouaiscsspo.gouv.qc.ca
A pioneering educational organization promoting collaboration and inclusivity to enhance success, well-being, and personal growth through innovative pedagogical practices |
405 |
| 20 |
Canadian Museum of Historyhistorymuseum.ca
Preserving and promoting Canadian history and cultural diversity through research, collections management, project management, creative development, and various administrative roles |
391 |
| 21 |
Competition Bureau Canadacompetition-bureau.canada.ca
An independent enforcement agency ensuring competition in Canada's marketplace, fostering efficiency, innovation, and fair consumer pricing while balancing interests |
324 |
| 22 |
Cégep Heritage Collegecegep-heritage.qc.ca
A publicly funded Anglophone CÉGEP in Western Québec offering career and pre-university programs, with a focus on student and staff well-being, engagement, and community involvement |
308 |
| 23 |
Brigilbrigil.com
Founded in 1985, this real estate company has built over 12,500 residential units in the Outaouais region, creating sought-after living spaces for generations |
206 |
| 24 |
Collège Universelcollegeuniversel.ca
The college offers a wide range of pre-university and technical programs in a technologically advanced environment focused on personalized teaching |
190 |
| 25 |
WAGE / FEGCcanada.ca
A federal government organization promoting gender equality by including people of all genders in Canada's economic, social, and political life |
184 |
| 26 |
Transportation Safety Board of Canada - Bureau de la sécurité des transports du Canadabst-tsb.gc.ca
An independent agency investigating transportation incidents in marine, pipeline, railway, and aviation sectors to enhance safety, employing 220 people across Canada |
179 |
| 27 |
Groupe Nordikgroupenordik.com
Diverse wellness, health, and tourism activities with corporate development identifying and partnering on promising large-scale projects for growth. |
132 |
| 28 |
EPSIepsi-inc.com
Consulting firm specializing in human resources, offering talent assessment, psychometric testing, organizational development, employee surveys, and professional development services to optimize organizational performance |
79 |
| 29 |
Vitrerie de la Valléevitreriedelavallee.com
Specializing in custom glass, doors, windows, mirrors, and showers, offering quality products for commercial and residential buildings with a trusted reputation since 1994 |
21 |
| 30 |
Mouvassur Investissements - Canadamouvassur.com
Financial services firm specializing in insurance brokerage and group pensions Providing comprehensive advice on personal insurance and wealth management for individuals and businesses |
16 |
| 31 |
Delfast Services Incdelfastservices.com
A pioneer in express delivery and supply chain solutions, providing rapid and efficient services across Québec and Ontario since 2016 |
12 |
| 32 |
Mobiluxmobilux.ca
A young company in Outaouais specializing in mobile car aesthetics services Offering interior and exterior cleaning, waxing, and polishing at your convenience |
11 |
| 33 |
Defran Inc.defran.ca
A construction company in the industrial and commercial sector, specializing in commercial glass work since 1976 with a dedicated and experienced team |
10 |
| 34 |
AiR Distillerieairdistillerie.com
Craft distillery disrupting traditions with bold, unique creations Locally-sourced ingredients, artisanal distillation, and thrilling new tastes crafted with care from start to finish |
9 |
| 35 |
Brown Bag Coffee Roastersbbcr.ca
Specialty coffee roastery focused on Free Trade Organic and Rain Forest Alliance certified single origin coffees, utilizing fluid bed roasters for the brightest, cleanest, healthiest cup. |
3 |
| 36 |
Ratrod Studio Inc.ratrodstudio.com
An entertainment software company specializing in developing and publishing interactive web content and games for mobile devices, PC, and console systems |
2 |
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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 24, 2026.
The same list elsewhere in Canada
- The largest companies in Canada 9,391
- The largest companies in Ontario 4,330
- The largest companies in the province of Quebec 1,985
- The largest companies in British Columbia 1,162
- The largest companies in Alberta 1,133
- The largest companies in Manitoba 215
- The largest companies in Nova Scotia 135
- The largest companies in Saskatchewan 120
- The largest companies in New Brunswick 97
- The largest companies in Toronto 1,663
- The largest companies in Montreal 856
- 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 Markham 141
- The largest companies in Brampton 119
- The largest companies in Burnaby 99
- The largest companies in London 99
- The largest companies in Oakville 97
- The largest companies in Vaughan 90