Major employers in St. Catharines
18 employers, 7 of them head offices: 3 worldwide, 0 national and 4 regional. Headcounts are for the site here, with the page that publishes them.
St. Catharines — the /local page · Who owns St. Catharines · Who represents St. Catharines · Companies
Employers18
Worldwide HQ3
National HQ0
Regional HQ4
1
Employers, largest first
People employed at the site in this city where a source publishes it; head offices without a published count follow.
| Company | Here | Employees here | Worldwide HQ | Jobs |
|---|---|---|---|---|
| Brock UniversityEducation — university | Major site | 5,7642025 | St. Catharines, Ontario | — |
| City of St. CatharinesPublic administration — municipal | Major site | 1,0152025 | St. Catharines, Ontario | Careers → |
| Rankin ConstructionConstruction — heavy civil, infrastructure, renewable energy, shoreline | Worldwide HQcompany head office | 5802025 | St. Catharines, Ontario | Careers → |
| Hotel Dieu Shaver Health and Rehabilitation CentreHealth care — rehabilitation and complex continuing care hospital | Major site | 4922025 | St. Catharines, Ontario | Careers → |
| Algoma Central CorporationMarine transportation — Great Lakes and ocean dry-bulk, tanker and product shipping | Worldwide HQglobal | — | St. Catharines, Ontario | Careers → |
| Henry of Pelham Family Estate WineryManufacturing — winery | Worldwide HQwinery and estate | — | St. Catharines, Ontario | — |
| District School Board of Niagara (DSBN)Education — public school board | Regional HQNiagara region (public school board head office) | — | St. Catharines, Ontario | — |
| Family and Children's Services Niagara (FACS Niagara)Social services — child welfare | Regional HQNiagara region (children's aid society) | — | St. Catharines, Ontario | Careers → |
| St. Lawrence Seaway Management Corporation — Operations Centre OntarioTransportation — canal and lock operations (federal not-for-profit)part of St. Lawrence Seaway Management Corporation | Regional HQOntario operations (Welland Canal and Ontario locks) | — | Cornwall, Ontario | Careers → |
| YMCA of NiagaraNon-profit — recreation, child care, employment and newcomer services | Regional HQNiagara region (association services office) | — | St. Catharines, Ontario | Careers → |
| General Motors — St. Catharines Propulsion PlantManufacturing — automotive powertrainpart of General Motors Company | Major site | — | Detroit, Michigan | — |
| Hospice NiagaraHealth care — palliative / hospice care | Major site | — | Niagara region, Ontario | Careers → |
| Niagara Children's CentreHealth care — children's rehabilitation and developmental services | Major site | — | St. Catharines, Ontario | Careers → |
| Niagara HealthHealth care — hospital system | Major site | — | Niagara region, Ontario | Careers → |
| Niagara Regional Police Service — 1 District (St. Catharines & Thorold)Public safety — regional policepart of Niagara Regional Police Service | Major site | — | Niagara Falls, Ontario | Careers → |
| Niagara Transit (Niagara Transit Commission)Transportation — public transit | Major site | — | Niagara region, Ontario | Careers → |
| Ridley CollegeEducation — independent boarding and day school (IB) | Major site | — | St. Catharines, Ontario | Careers → |
| St. Catharines Public LibraryPublic library | Major site | — | St. Catharines, Ontario | Careers → |
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Notes on this record
- Headcounts come from the Niagara Employment Inventory 2025 as published on niagaracanada.com's Regional Quick Facts page. The inventory counts each employer across the whole Niagara region, so a region-wide count is put in employeesHere only where the employer is effectively a single St. Catharines operation (Brock, City, Rankin) and otherwise kept in the note.
- Just outside St. Catharines, in Thorold: the Niagara Region headquarters (Niagara Region, 4,472 employees region-wide in the inventory; careers at niagararegion.ca → Government and council → Careers and volunteering) and Bethesda Community Services (609 in the inventory; careers at bethesdaservices.com/en/corporate/careers). They are not listed as St. Catharines rows.
- Blocked or not opened (2026-10-30): Brock University (Cloudflare challenge on robots.txt), General Motors (gm.ca / gm.com / media.gm.ca Akamai 403), Meridian Credit Union (Incapsula 'Pardon Our Interruption' after two pages — head office not confirmed, so no row), DSBN careers subdomain (robots 401), investstcatharines.com (connection failed), commercialcleaningservices.ca, gagevillage.ca, communitylivingstcatharines.ca (connection failed), cmhaniagara.ca (robots redirect to a malformed host), heddleshipyards.com and phantomcompass.com (robots disallow all), paramed.com (robots disallow).
- Avondale Stores (90+ Niagara/Hamilton convenience stores) began delivering milk in St. Catharines in 1931, but its pages do not state where its head office is now — no row.
- No venture-funded software or tech company headquartered in St. Catharines was found. Innovate Niagara (innovateniagara.com, the regional innovation centre) reports more than $179M in funding secured by clients since 2011 but publishes no company-level list; its October 2026 tech tour featured Intuitive Shipping as 100% founder-owned (not funded).
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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.
- Niagara Economic Development (Niagara Region) — Regional Quick Facts: Largest Employers (Private / Public Sector), source 'Niagara Employment Inventory, 2025' · retrieved 2026-10-30Terms: none stated on page; counts are Niagara-region-wide per employer, not per municipality
- Company and institution own websites (about, contact, careers pages) · retrieved 2026-10-30Terms: none read beyond pages used