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188
Employers
233
Inspections
4
Violations
$46,012
Penalties Assessed
Federal data
Overview

What this page covers

📋

Every employer with an OSHA record

188 Thornton 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

4 citations issued across Thornton employers totaling $46,012 in proposed federal penalties. Use the leaderboard below to find the employers carrying the largest assessed totals.

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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.

Trend

OSHA activity by year in Thornton

Inspections, violations, accidents, and proposed penalties aggregated by the year of each employer’s most recent inspection.

InspectionsViolationsAccidents$ Penalties
2026$2,979penalties
Inspections
4
Violations
1
Accidents
0
2025$43,033penalties
Inspections
14
Violations
3
Accidents
0
2024$0penalties
Inspections
131
Violations
0
Accidents
0
2023$0penalties
Inspections
10
Violations
0
Accidents
0
2022$0penalties
Inspections
17
Violations
0
Accidents
0
2021$0penalties
Inspections
17
Violations
0
Accidents
0
2020$0penalties
Inspections
5
Violations
0
Accidents
0
2019$0penalties
Inspections
23
Violations
0
Accidents
0
⚠ Worst offenders

Top 10 Thornton employers by OSHA penalties

Ranked by total federal penalty assessment.

Map

OSHA-inspected employers near Thornton

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City coordinates for Thornton haven't been geocoded yet; the map is centered on the Colorado centroid.

Employers

All 155 employers in Thornton

Sorted by total violation count. Use the filter below to search by name, NAICS, or slug.

Show only

Client-side filter. Searches the 60 employers on this page only. Use the page links below for the rest of the 155-employer list.

OtherCO
Martin Quintanilla Luna
1 inspection · 2 violations
Thornton·$38,068 penalties·Last: Sep 3, 2025
OtherCO
A&n Construction Inc.
1 inspection · 1 violation
Thornton·$2,979 penalties·Last: Jan 12, 2026
OtherCO
Rmconstruction, Inc.
2 inspections · 1 violation
Thornton·$4,965 penalties·Last: Sep 3, 2025
OtherCO
Wash Fox, Llc
1 inspection · 0 violations
Thornton·Last: Apr 15, 2026
OtherCO
Liv Well
1 inspection · 0 violations
Thornton·Last: Mar 11, 2026
OtherCO
Ww Clyde & Co.
1 inspection · 0 violations
Thornton·Last: Mar 3, 2026
OtherCO
Jhl Enterprises, Inc.
2 inspections · 0 violations
Thornton·Last: Aug 12, 2025
OtherCO
Grabau Roofing, Inc.
3 inspections · 0 violations
Thornton·Last: Jul 16, 2025
OtherCO
Uriel Barajas
1 inspection · 0 violations
Thornton·Last: Jul 14, 2025
OtherCO
Ethos General Contractors Llc
1 inspection · 0 violations
Thornton·Last: Jul 14, 2025
OtherCO
Hernandez General Construction Llc
1 inspection · 0 violations
Thornton·Last: Jul 2, 2025
OtherCO
Jd Roofing Llc
2 inspections · 0 violations
Thornton·Last: Jul 2, 2025
OtherCO
Colorado State Exteriors, Llc
1 inspection · 0 violations
Thornton·Last: Mar 24, 2025
OtherCO
Jcf Roofing Llc
6 inspections · 0 violations
Thornton·Last: Nov 20, 2024
OtherCO
Olbin Construction Llc
1 inspection · 0 violations
Thornton·Last: Nov 20, 2024
OtherCO
Murphy Company Mechanical Contractors And Engineers
1 inspection · 0 violations
Thornton·Last: Nov 7, 2024
OtherCO
Hdo Roofing & Exterior Llc
1 inspection · 0 violations
Thornton·Last: Nov 4, 2024
OtherCO
Paramount Enterprises Llc
3 inspections · 0 violations
Thornton·Last: Nov 2, 2024
OtherCO
Summit Solar & Roofing, Inc.
2 inspections · 0 violations
Thornton·Last: Oct 29, 2024
OtherCO
Red Rock Roofing
1 inspection · 0 violations
Thornton·Last: Oct 29, 2024
OtherCO
Pizano Construction Llc
1 inspection · 0 violations
Thornton·Last: Oct 29, 2024
OtherCO
Hugo Enriquez Gonzalez
1 inspection · 0 violations
Thornton·Last: Oct 29, 2024
OtherCO
Sky Manor Roofing Llc
1 inspection · 0 violations
Thornton·Last: Oct 29, 2024
OtherCO
Orlando Construction Llc
1 inspection · 0 violations
Thornton·Last: Oct 29, 2024
OtherCO
Hugo Enriquez Gonzales
1 inspection · 0 violations
Thornton·Last: Oct 29, 2024
OtherCO
Triple J Inc
1 inspection · 0 violations
Thornton·Last: Oct 24, 2024
OtherCO
Mf Brothers Roofing Llc
1 inspection · 0 violations
Thornton·Last: Oct 24, 2024
OtherCO
Roof Worx, Llc
1 inspection · 0 violations
Thornton·Last: Oct 24, 2024
OtherCO
Chacon's Roofing, Llc
2 inspections · 0 violations
Thornton·Last: Oct 24, 2024
OtherCO
Premier Roofing Company
2 inspections · 0 violations
Thornton·Last: Oct 8, 2024
OtherCO
Valencia Roofing Llc
4 inspections · 0 violations
Thornton·Last: Oct 8, 2024
OtherCO
Alopro Contractors Llc
2 inspections · 0 violations
Thornton·Last: Oct 8, 2024
OtherCO
Westpro, Ltd.
2 inspections · 0 violations
Thornton·Last: Oct 3, 2024
OtherCO
Along Construction Llc
2 inspections · 0 violations
Thornton·Last: Oct 3, 2024
OtherCO
Star Construction S Corp
2 inspections · 0 violations
Thornton·Last: Oct 3, 2024
OtherCO
Grageda Construction Llc
2 inspections · 0 violations
Thornton·Last: Oct 3, 2024
OtherCO
Amc Roofing Inc.
1 inspection · 0 violations
Thornton·Last: Oct 3, 2024
OtherCO
Coltex Roofing & Gutters, Inc.
1 inspection · 0 violations
Thornton·Last: Oct 3, 2024
OtherCO
Nhat Roofing
1 inspection · 0 violations
Thornton·Last: Sep 4, 2024
OtherCO
Elite Custom Builders Llc
2 inspections · 0 violations
Thornton·Last: Sep 4, 2024
OtherCO
Crone Roofing
1 inspection · 0 violations
Thornton·Last: Sep 4, 2024
OtherCO
Innovation & Restoration Llc
1 inspection · 0 violations
Thornton·Last: Sep 4, 2024
OtherCO
Just N Time Construction Llc
1 inspection · 0 violations
Thornton·Last: Sep 4, 2024
OtherCO
Pulido's R Construction Llc
2 inspections · 0 violations
Thornton·Last: Sep 4, 2024
OtherCO
Milan Roofing Llc
2 inspections · 0 violations
Thornton·Last: Sep 4, 2024
OtherCO
R&r Construction Ltd
2 inspections · 0 violations
Thornton·Last: Sep 4, 2024
OtherCO
A & H Roofing, Llc
2 inspections · 0 violations
Thornton·Last: Sep 3, 2024
OtherCO
Loyal Construction Inc.
3 inspections · 0 violations
Thornton·Last: Sep 3, 2024
OtherCO
Repairs Unlimited, Llc
2 inspections · 0 violations
Thornton·Last: Sep 3, 2024
OtherCO
Reyher Roofing And Exteriors
2 inspections · 0 violations
Thornton·Last: Sep 3, 2024
OtherCO
Precision Exteriors Restoration Llc
1 inspection · 0 violations
Thornton·Last: Aug 20, 2024
OtherCO
Cardenas Roofing Llc
1 inspection · 0 violations
Thornton·Last: Aug 20, 2024
OtherCO
Turn 2 Llc
1 inspection · 0 violations
Thornton·Last: Aug 20, 2024
OtherCO
Weatherguard Roofing And Restoration Llc
1 inspection · 0 violations
Thornton·Last: Aug 20, 2024
OtherCO
Dmj Contracting Ltd.
1 inspection · 0 violations
Thornton·Last: Aug 20, 2024
OtherCO
Wilson Albararo
1 inspection · 0 violations
Thornton·Last: Aug 17, 2024
OtherCO
Hac Roofing Llc
7 inspections · 0 violations
Thornton·Last: Aug 17, 2024
OtherCO
Cordova L Roofing Llc
1 inspection · 0 violations
Thornton·Last: Aug 15, 2024
OtherCO
Reroof America Contractors Co, Llc
3 inspections · 0 violations
Thornton·Last: Aug 15, 2024
OtherCO
R&r Roofing Llc
6 inspections · 0 violations
Thornton·Last: Aug 15, 2024
About this data

About Thornton 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. Thornton 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.