OSHA Inspections in Ontario, California
Workplace safety enforcement records for 757 employers in Ontario, drawn from the U.S. Department of Labor’s OSHA enforcement dataset. Browse establishments by violation severity, search by name, and compare penalty totals.
What this page covers
Every employer with an OSHA record
757 Ontario establishments with at least one federal inspection on file. Click any card to see the full inspection history, citation list, and accident reports for that employer.
Citations and penalty totals
1,216 citations issued across Ontario employers totaling $1,903,600 in proposed federal penalties. Use the leaderboard below to find the employers carrying the largest assessed totals.
Search and filter
Use the search box to filter the employer list by name, NAICS code, or slug. All filtering is client-side — your queries never leave your browser.
OSHA activity by year in Ontario
Inspections, violations, accidents, and proposed penalties aggregated by the year of each employer’s most recent inspection.
Top 10 Ontario employers by OSHA penalties
Ranked by total federal penalty assessment.
OSHA-inspected employers near Ontario
Map centered on Ontario. Employer pins are placed near the city center — OSHA does not publish per-establishment coordinates.
All 607 employers in Ontario
Sorted by total violation count. Use the filter below to search by name, NAICS, or slug.
Client-side filter. Searches the 60 employers on this page only. Use the page links below for the rest of the 607-employer list.
About Ontario OSHA records
Every record on this page is sourced from the U.S. Occupational Safety and Health Administration (OSHA) enforcement dataset, published by the Department of Labor and updated daily. Ontario appears in the dataset because at least one establishment in the city has been inspected by federal or state-plan OSHA inspectors in the past five years.
What an inspection means. OSHA inspections can be triggered by a worker complaint, a reported accident, a referral from another agency, or as part of a programmed targeting campaign for high-hazard industries. An inspection on record does not necessarily mean violations were found — many inspections close with no citations.
How to read a citation. Citations are classified as Willful, Serious, Repeat, or Other-than-serious. The dollar penalty next to an employer is the initial proposed penalty; the final settled amount is often lower after the abatement process. For context on each classification, see our explainer on willful vs. serious vs. repeat OSHA violations.