The companies in Mississauga are primarily large to mid-sized firms operating in critical infrastructure sectors. This includes a strong presence of freight and package transportation, healthcare, and financial services. Noteworthy companies include Purolator Inc., a Canadian provider of integrated logistics solutions, and Trillium Health Partners, a leading hospital offering acute care services.
Other significant employers are Bayshore HealthCare, providing home and community healthcare, and goeasy Ltd., a financial services company. FedEx Canada also contributes to the logistics sector. A common pattern observed is a concentration of companies providing essential services and infrastructure support.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Purolator Inc.purolator.com
A leading Canadian provider of integrated freight, parcel, and logistics solutions, focusing on sustainable growth, community well-being, and delivering promises for over 50 years |
6,230 | |||
| 2 |
Trillium Health Partnersthp.ca
Leading hospital providing full range of acute care services, specialized programs, and community-based care Committed to delivering high-quality, accessible patient care |
6,009 | |||
| 3 |
Bayshore HealthCarebayshore.ca
Providing personalized home and community healthcare services across Canada, supporting clients' independence and quality of life with customized care plans. |
5,911 | |||
| 4 |
goeasy Ltd.goeasy.com
A Canadian financial services company providing non-prime leasing, lending, and credit access to millions of Canadians while prioritizing employee culture and community initiatives |
3,024 | |||
| 5 |
RBC Insurancerbcinsurance.com
A market leader in insurance, offering a wide range of life, health, home, auto, travel, and wealth solutions to individuals and groups across Canada Additionally, providing reinsurance solutions globally |
2,965 | |||
| 6 |
FedEx Canadafedex.com
Global logistics and transportation provider with domestic and international shipping services, advanced tracking systems, automated customs clearance, and a dedicated transportation network |
2,111 | |||
| 7 |
Bell Technical Solutions
Specializing in installation and maintenance of telecommunications services, our goal is to enhance connectivity for Canadians through innovation and exceptional customer experience |
1,908 | |||
| 8 |
Greater Toronto Airports Authoritytorontopearson.com
Managing and operating Canada's largest airport, creating a safe and healthy airport experience for millions of passengers through teamwork and innovation Email: customer_service@gtaacom |
1,442 | |||
| 9 |
Alectra Inc.alectra.com
Providing energy services and solutions to over 1 million homes and businesses in the Greater Golden Horseshoe Area, aiming to discover new possibilities in energy |
1,220 | |||
| 10 |
Manitoulin Transportmanitoulintransport.com
A leading Canadian transportation and logistics provider offering a wide range of services with extensive coverage in North America |
1,157 | |||
| 11 |
Cargojetcargojet.com
Provider of time-sensitive overnight air cargo services, aircraft handling, and fueling services at Hamilton Airport in Canada. |
1,156 | |||
| 12 |
Credit Valley Hospitalthp.ca
Leading hospital with outstanding performance, fiscal responsibility, and quality patient care across three main sites offering acute care and specialized programs |
1,036 | |||
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| 13 |
Ontario Clean Water Agencyocwa.com
Provider of water and wastewater management services, offering safe, reliable, and cost-effective solutions to municipalities, businesses, and institutions in Ontario |
745 | |||
| 14 | 717 | ||||
| 15 |
Shoppers Drug Mart Specialty Health Networksdmshn.ca
Optimizing healthcare for Canadians, providing specialty care services through a large retail pharmacy network for patients, healthcare providers, and pharmaceutical manufacturers. |
710 | |||
| 16 |
Allstreamallstream.com
A leading provider of business communications services in North America, offering voice, collaboration, connectivity, and IT solutions to help clients innovate and connect |
572 | |||
| 17 |
ErinoakKids Centre for Treatment and Developmenterinoakkids.ca
Ontario's largest children's treatment center providing services for over 20,000 children with disabilities, autism, and communication disorders, as well as deaf or blind children |
552 | |||
| 18 |
Air Canada Rougeflyrouge.com
The company is dedicated to providing exceptional beginnings and endings to travelers' vacations, focusing on customer satisfaction and career growth opportunities |
502 | |||
| 19 |
GTAdnata
ISAGO certified Ground Handling & Cargo Handling leader in YYZ, YYC, and YVR, providing exceptional services to a wide range of airline customers, including major international airlines |
494 | |||
| 20 |
Sameday Worldwidedayross.com
A transportation company under Day & Ross offering diverse logistics solutions in North America with a focus on safety and sustainability |
153 | |||
| 21 |
Apps Transport Groupappsexpress.com
Asset-based transportation company providing intermodal, LTL, TL, trans-load, warehousing, consolidation, and freight brokering services across Canada. |
139 | |||
| 22 |
CARGO COUNTY GROUPcargocounty.com
Leading Canadian trucking company offering transportation, logistics, and third-party logistics services across Canada and the US border. |
62 | |||
| 23 |
Pride Group Logisticsshipwithpride.com
A North American truckload carrier with a lifetime of experience, offering an extensive fleet of brand new equipment for excellent on-time performance to truckload clientele |
24 | |||
| 24 |
Gorilla Transport Incgorillatransport.ca
A trucking and transportation company with over 15 years of experience, offering efficient service and competitive rates for various industries across Canada |
6 | |||
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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 Nov 11, 2026.
More company lists in Mississauga
- The largest companies in Mississauga 513
- Multinational companies in Mississauga 119
- Logistics companies in Mississauga 80
- Transportation, Logistics, Supply Chain and Storage companies in Mississauga 76
- Truck Transportation companies in Mississauga 64
- Manufacturers in Mississauga 42
- Retail chains in Mississauga 36
- IT Services and IT Consulting companies in Mississauga 29
- Distributors and wholesalers in Mississauga 29
- Hardware manufacturers in Mississauga 25
The same list elsewhere in Canada
- Critical infrastructure operators in Canada 767
- Critical infrastructure operators in Ontario 344
- Critical infrastructure operators in the province of Quebec 126
- Critical infrastructure operators in Alberta 124
- Critical infrastructure operators in British Columbia 78
- Critical infrastructure operators in Manitoba 27
- Critical infrastructure operators in Toronto 120
- Critical infrastructure operators in Calgary 83
- Critical infrastructure operators in Montreal 51
- Critical infrastructure operators in Ottawa 30
- Critical infrastructure operators in Vancouver 26