Major employers in Newmarket
11 employers, 7 of them head offices: 5 worldwide, 0 national and 2 regional. Headcounts are for the site here, with the page that publishes them.
Newmarket — the /local page · Who represents Newmarket · Companies
Employers11
Worldwide HQ5
National HQ0
Regional HQ2
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 |
|---|---|---|---|---|
| AirBoss of America Corp.Manufacturing — rubber compounds, engineered rubber products and defence solutions | Worldwide HQglobal | — | Newmarket, Ontario | Careers → |
| NT Power (Newmarket-Tay Power Distribution)Utility — electricity distribution | Worldwide HQcompany | — | Newmarket, Ontario | Careers → |
| Pickering CollegeEducation — independent day and boarding school | Worldwide HQindependent school | — | Newmarket, Ontario | Careers → |
| Turf Care Products CanadaWholesale — turf equipment, golf cars, irrigation | Worldwide HQcompany (Canadian Toro distributor) | — | Newmarket, Ontario | Careers → |
| Util-Assist Inc.Utility consulting — AMI, professional and managed services | Worldwide HQcompany | — | Newmarket, Ontario | Careers → |
| Lake Simcoe Region Conservation AuthorityPublic agency — watershed management and conservation | Regional HQLake Simcoe watershed | — | Newmarket, Ontario | Careers → |
| Regional Municipality of York (York Region)Regional government — social services, public health, paramedics, transit, water | Regional HQYork Region (upper-tier regional government head office) | — | Newmarket, Ontario | Careers → |
| Mars Canada (Newmarket)Food and petcare manufacturing — confectionery, pet foodpart of Mars, Incorporated | Major site | — | McLean, Virginia | Careers → |
| Southlake Health (Southlake Regional Health Centre)Health care — regional acute-care hospital | Major site | — | Newmarket, Ontario | Careers → |
| Town of NewmarketLocal government | Major site | — | Newmarket, Ontario | Careers → |
| TS Tech CanadaAutomotive parts manufacturing — seatspart of TS Tech Co., Ltd. | Major site | — | Asaka, Saitama, Japan | Careers → |
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Notes on this record
- The Town of Newmarket publishes no top-employers list. York Region's YorkLink page names private employers with more than 300 staff by municipality (from the 2022 Employment Survey), but gives no headcounts.
- Listed by YorkLink but not added because their sites could not be opened: Celestica (celestica.com robots.txt Disallow: /), Cam-Slide Manufacturing (robots.txt timed out), Dortec Industries (empty page), Gincor Werx (Cloudflare challenge). Flextronics Global–SunEdison is on the 2022 list but was not checked.
- York Region District School Board and York Catholic District School Board have their head offices in Aurora, so they are not listed here.
- No venture-funded software company headquartered in Newmarket was found.
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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.
- YorkLink (York Region Economic Development) — Top Company Industry Rankings, incl. 'Top Employers in York Region' (York Region Employment Survey 2022) · retrieved 2026-10-30Terms: Legal & Privacy linked; not read beyond page used
- Town of Newmarket — Economic Development pages · retrieved 2026-10-30Terms: none stated; no employer list or headcounts
- Company and institution own websites (about, contact, careers pages) · retrieved 2026-10-30Terms: none read beyond pages used