Major employers in Hamilton

22 employers, 8 of them head offices: 6 worldwide, 2 national and 0 regional. Headcounts are for the site here, with the page that publishes them.

Hamilton — the /local page · Who owns Hamilton · Who represents Hamilton · Companies

Employers22
Worldwide HQ6
National HQ2
Regional HQ0
1

Employers, largest first

People employed at the site in this city where a source publishes it; head offices without a published count follow.

CompanyHereEmployees hereWorldwide HQJobs
McMaster UniversityEducation — universityMajor site19,0002026Hamilton, Ontario—
Hamilton-Wentworth District School BoardEducation — public school boardMajor site8,6132024Hamilton, Ontario—
Hamilton Health SciencesHealth care — hospital network / academic health sciences centreMajor site8,3202023Hamilton, Ontario—
City of HamiltonMunicipal governmentMajor site8,0002022Hamilton, Ontario—
St. Joseph's Healthcare HamiltonHealth care — teaching hospitalMajor site5,0002026Hamilton, Ontario—
ArcelorMittal Dofasco G.P.Manufacturing — integrated flat-rolled steelpart of ArcelorMittalNational HQCanada — ArcelorMittal's Canadian flat-rolled steel business4,7092023Luxembourg City, Luxembourg—
Hamilton Police ServicePublic safety — municipal policeMajor site1,2432026Hamilton, Ontario—
Mohawk CollegeEducation — college of applied arts and technologyMajor site1,1362023Hamilton, Ontario—
HOPA Ports (Hamilton-Oshawa Port Authority)Transportation — federal port authorityWorldwide HQHamilton and Oshawa ports (HOPA Ports network)582023Hamilton, Ontario—
CoppleyApparel manufacturing — tailored menswearWorldwide HQglobal—Hamilton, Ontario—
E.D. Smith Foods, LtdFood manufacturing — jams, sauces, pie fillingsWorldwide HQE.D. Smith Foods, Ltd—Winona (Stoney Creek, Hamilton), Ontario—
Fox 40 International Inc.Manufacturing — sports and safety whistles and equipmentWorldwide HQglobal—Hamilton, Ontario—
National Steel Car LimitedManufacturing — railcarsWorldwide HQglobal—Hamilton, Ontario—
Taylor SteelSteel service centre — flat-rolled processingWorldwide HQglobal—Stoney Creek (Hamilton), Ontario—
Stryker Canada ULCMedical technology — sales, marketing and distributionpart of Stryker CorporationNational HQCanada—Portage, Michigan—
Alectra Utilities CorporationUtilities — electricity distributionpart of Alectra Inc.Major site—Mississauga, Ontario—
CHCH TVBroadcasting — television stationMajor site—Hamilton, Ontario—
Hamilton-Wentworth Catholic District School BoardEducation — Catholic school boardMajor site—Hamilton, Ontario—
Nelson Steel (Samuel Nelson Steel)Steel processing — pickling and service centrepart of Samuel, Son & Co.Major site—Ontario, Canada (city not confirmed on samuel.com)—
Redeemer UniversityEducation — universityMajor site—Ancaster (Hamilton), Ontario—
Robertson Building SystemsManufacturing — pre-engineered metal buildingspart of Cornerstone Building BrandsMajor site—Cary, North Carolina (not confirmed on its site)—
Stelco (Hamilton Works)Manufacturing — steel finishing and cokemakingpart of Cleveland-Cliffs Inc.Major site—Cleveland, Ohio—
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Notes on this record

  • Invest in Hamilton (the City's economic development office) does not currently publish a top-employers list with headcounts; its labour-force page only describes 'World-Class Employers' in general terms. Headcounts come from the Mediacorp Hamilton-Niagara Top Employers features (full-time only, and only for that program's winners), the employers' own pages, and filings.
  • Mediacorp counts are full-time staff of the whole employer, which is not always the Hamilton site. Stryker Canada's 715 is the Canadian entity's figure, so it is noted and not recorded as employeesHere.
  • The Mediacorp 2023 edition prints '5684 full-time employees' for FirstOntario Credit Union. That looks like a misprint for a credit union with about 80,000 members, and it is not recorded.
  • Blocked or not reachable with the ResearchUpon UA. ArcelorMittal Dofasco and corporate.arcelormittal.com returned 403 even for robots.txt; the Dofasco row rests on the Government of Canada release and Mediacorp, and its website field could not be opened. firstontario.com returned 403 (FirstOntario Credit Union is left out because its head office could not be confirmed). fortinos.ca returned 403 (Fortinos, the Loblaw banner founded in Hamilton, is left out). treehousefoods.com and wolseleyinc.ca returned 403; bunge.com returned 403 on robots.txt. baffin.com and turkstralumber.com returned 429 rate-limits. mana-barmill.com (Max Aicher North America) failed its TLS certificate check. None of these were retried.
  • Left out after checking. Ackroo's contact page now gives London, ON. InvestorCOM's gives Brantford. QM Environmental's head office is Burlington, and McKeil Marine's is too. L3Harris WESCAM's Hamilton location could not be confirmed on l3harris.com. Cargojet is headquartered in Mississauga, and its pages fetched here say nothing about its Hamilton hub.
  • discover.mcmaster.ca's robots.txt disallows named AI crawlers (GPTBot, ClaudeBot etc.) but allows User-agent *; the page was read with the ResearchUpon UA under the * rules.
  • This list is short of the ~35 target. The session's web-search budget ran out partway through, so other large Hamilton employers were not researched: Cargojet's Hamilton hub, Amazon, Canada Post, Hamilton Public Library, Good Shepherd, Hamilton International Airport, and the provincial and federal offices. Worth a follow-up pass.
  • worldwideHq for ArcelorMittal (Luxembourg City), Samuel and Cornerstone Building Brands (Cary, NC) is general knowledge and was not confirmed on those groups' own sites in this pass.
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Sources

Prepared 2026-10-23. Each headcount links to the page it is read from; each company to its own site or its /company page.