Major employers in Kingston

21 employers, 4 of them head offices: 2 worldwide, 1 national and 1 regional. Headcounts are for the site here, with the page that publishes them.

Kingston — the /local page · Who represents Kingston · Companies

Employers21
Worldwide HQ2
National HQ1
Regional HQ1
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
Queen's UniversityEducation — universityMajor site9,3522023Kingston, Ontario—
Kingston Health Sciences CentreHealth care — teaching hospitalMajor site5,9532023Kingston, Ontario—
Canadian Forces Base KingstonPublic administration — national defencepart of Department of National Defence (Government of Canada)Major site5,8002023Ottawa, Ontario—
Limestone District School BoardEducation — public school boardMajor site3,4002023Kingston, Ontario—
Correctional Service Canada — Ontario and Nunavut Regional HeadquartersPublic administration — federal correctionspart of Government of CanadaRegional HQOntario and Nunavut (CSC region)2,5002023Ottawa, Ontario—
City of KingstonPublic administration — municipal governmentMajor site1,5502023Kingston, Ontario—
St. Lawrence CollegeEducation — collegeMajor site8752023Kingston, Ontario—
The Empire Life Insurance CompanyFinance — life insurance and investmentspart of E-L Financial CorporationWorldwide HQglobal (Empire Life head office)6742023Kingston, Ontario—
Ontario Ministry of Health — Kingston office (Personal Health Information Office)Public administration — provincial healthpart of Government of OntarioMajor site5302023Toronto, Ontario—
Calian Technologies — KingstonProfessional services — IT, defence, health and learning servicespart of Calian GroupMajor site3632023Ottawa, Ontario—
Tim Hortons Distribution Centre (Kingston)Wholesale — restaurant supply distributionpart of Restaurant Brands InternationalMajor site2802023Toronto, Ontario—
Novelis — KingstonManufacturing — aluminum rollingpart of Hindalco Industries (Aditya Birla Group)Major site2642023Atlanta, Georgia—
Commissionaires — KingstonAdministrative services — security guard servicespart of Canadian Corps of CommissionairesMajor site2552023Ottawa, Ontario—
Cancoil Thermal CorporationManufacturing — refrigeration and heat-transfer equipmentWorldwide HQglobal (coil, unit-cooler and condensing-unit manufacturer)2002023Kingston, Ontario—
Assurant — KingstonFinance — insurance and protection productspart of Assurant, Inc.Major site1802023Atlanta, Georgia—
Haakon Industries — Kingston factoryManufacturing — custom air-handling unitsMajor site1702023Richmond, British Columbia—
Canada Royal MilkManufacturing — infant formula and dairy productsMajor site1652023not established—
DuPont — Kingston Technology CentreResearch and development — materials sciencepart of DuPont de Nemours, Inc.Major site1502023Wilmington, Delaware—
Frulact CanadaManufacturing — fruit preparations for the food industrypart of Frulact GroupNational HQCanada (Frulact's first Canadian plant, fruit-preparation processing)952023Maia, Portugal—
Coke Canada Bottling — Kingston distribution centreWholesale — beverage distributionpart of Coke Canada Bottling LimitedMajor site852023Toronto, Ontario—
Kingston PolicePublic administration — policeMajor site—Kingston, Ontario—
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Notes on this record

  • Headcounts are Kingston Economic Development Corporation's list, stated as of October 2023; the list covers Kingston sites only.
  • Left out because the company's own site could not be opened with our UA: Providence Care (KEDCO 1,700; providencecare.ca 403), INVISTA Canada (KEDCO 700; nylon 6,6 polymer plant owned by INVISTA per KEDCO; invista.com CloudFront 403), MetalCraft Marine (KEDCO 100; metalcraftmarine.com 403), Kingston Process Metallurgy (KEDCO 120; kpm.ca 429), Royal Military College of Canada (rmc-cmr.ca 503).
  • Left out: Utilities Kingston — its robots.txt disallows ClaudeBot and anthropic-ai, so its site was not read.
  • Left out: J.E. Agnew Food Services (KEDCO 450) — search leads show it operates Tim Hortons restaurants in Kingston; no company website found. Algonquin and Lakeshore Catholic DSB — its homepage gives 1,371 full-time employees board-wide, but its Kingston board office was not confirmed (about page 403).
  • Correctional Service Canada's KEDCO figure (2,500) is Kingston-wide CSC staffing; the regional headquarters for Ontario and Nunavut is in Kingston (national HQ Ottawa).
  • Kingston's verified head offices: Empire Life (worldwide), Cancoil Thermal (worldwide), Frulact Canada (national), CSC Ontario and Nunavut (regional).
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Sources

Prepared 2026-10-30. Each headcount links to the page it is read from; each company to its own site or its /company page.