Major employers in Longueuil

19 employers, 10 of them head offices: 10 worldwide, 0 national and 0 regional. Headcounts are for the site here, with the page that publishes them.

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

Employers19
Worldwide HQ10
National HQ0
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
Pratt & Whitney CanadaAerospace — aircraft engine manufacturingpart of RTXWorldwide HQPratt & Whitney Canada (global)4,4002026Arlington, VirginiaCareers →
Ville de LongueuilMunicipal government (incl. agglomeration police and fire)Major site3,3152024Longueuil, QuébecCareers →
Agence spatiale canadienne (ASC / Canadian Space Agency)Federal government — space agencyWorldwide HQCanada (federal space agency)—Longueuil, QuébecCareers →
Agropur coopérativeFood manufacturing — dairy cooperativeWorldwide HQglobal—Longueuil, QuébecCareers →
Collège Air RichelieuEducation — flight training school and aircraft maintenanceWorldwide HQglobal—Longueuil, Québec—
Innergex énergie renouvelable inc.Utilities — renewable power generation (hydro, wind, solar, storage)Worldwide HQglobal—Longueuil, QuébecCareers →
Knowlton Development Corporation (kdc/one)Manufacturing — beauty, personal-care and home-care products (contract formulation)Worldwide HQglobal—Longueuil, Québec—
LumenpulseManufacturing — architectural LED lightingWorldwide HQglobal—Longueuil, Québec—
Réseau de transport de Longueuil (RTL)Public transit — bus networkWorldwide HQLongueuil agglomeration (public transit)—Longueuil, QuébecCareers →
Technologies D-BOX inc.Technology — haptic motion systems for cinema, sim racing and simulationWorldwide HQglobal—Longueuil, QuébecCareers →
XNRGY Climate SystemsManufacturing — HVAC / data-centre cooling systemsWorldwide HQglobal—Longueuil, QuébecCareers →
Cégep Édouard-MontpetitEducation — public college (CEGEP)Major site—Longueuil, QuébecCareers →
Centre de services scolaire Marie-Victorin (CSSMV)Education — public French-language school service centreMajor site—Longueuil, QuébecCareers →
Chrono AviationAir transportation — charter airlineMajor site—Québec City, Québec—
École nationale d'aérotechnique (ÉNA)Education — aerospace technical college campuspart of Cégep Édouard-MontpetitMajor site—Longueuil, QuébecCareers →
Pascan AviationAir transportation — regional airlineMajor site—Longueuil, Québec—
Santé Québec – Montérégie-Centre (Hôpital Charles-Le Moyne)Health care — hospital and regional health networkpart of Santé QuébecMajor site—Québec City, QuébecCareers →
Santé Québec – Montérégie-Est (Hôpital Pierre-Boucher)Health care — hospitalpart of Santé QuébecMajor site—Québec City, QuébecCareers →
Université de Sherbrooke — Campus de LongueuilHigher education — university campuspart of Université de SherbrookeMajor site—Sherbrooke, QuébecCareers →
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Notes on this record

  • No Longueuil 'top employers by headcount' list was found; the city's investment office (investir.longueuil.quebec) publishes news items only, and its sector pages for aerospace returned 'Access denied'. Longueuil includes the Saint-Hubert and Greenfield Park boroughs; Brossard, Boucherville, Saint-Bruno and Saint-Lambert are separate municipalities of the agglomeration.
  • Blocked or not usable on 2026-10-31, so left out: Héroux-Devtek (herouxdevtek.com returns an Incapsula challenge; the city's investment office calls it 'headquartered in Longueuil'); Wiptec (wiptec.com connection failed; the city reported a 1,000-job e-commerce fulfilment centre near Saint-Hubert airport); Collège Charles-Lemoyne (connection failed). prattwhitney.com and careers.rtx.com search pages are behind Cloudflare challenges; the RTX global careers page loaded.
  • Leads named by the city's investment office but not verified as Longueuil-based on their own sites: Sherweb, Technology Evaluation Centers, Ebox (its site gives 200+ employees but no head-office city), Global Payments Canada, Mediagrif, Sogema Technologies, Alliance Zone, SAIL (Longueuil e-commerce warehouse). No venture-funded Longueuil software company was confirmed on a company or investor page.
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Sources

Prepared 2026-10-31. Each headcount links to the page it is read from; each company to its own site or its /company page.