Commercial building construction general contractors · California

Stronghold Engineering, Inc.

Name: Stronghold Engineering, Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Riverside, CA · ~178 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.8
Avg TCR: 2.9
Industry avg: 0
Fatalities

Subscribe to safety-record updates (RSS)

The verdict

Stronghold Engineering, Inc. runs at 27% of its industry's injury rate - far safer than the typical Commercial building construction general contractors workplace, earning a grade A.

Stronghold Engineering, Inc.: 0.8 TCR = 27% of Commercial building construction general contractors BLS 2.9 · 2y Form 300A (see methodology below)

Stronghold Engineering, Inc. safety composite

Stronghold Engineering, Inc. scores strongest on total case rate (tcr) (safer than 83% of same-industry peers) and weakest on dart rate (safer than 43%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

61/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 0.79 per 100 workers

Safer than 83% of industry peers
DART rate: D 0.51 per 100 workers

Safer than 43% of industry peers
Fatalities: D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

Stronghold Engineering, Inc.: 0.6 → 1.0 TCR

Peak year 2017 @ 1.0 TCR · DART/TCR 0.65× in 2017

Stronghold Engineering, Inc.'s TCR rose 0.5 from 0.6 in 2016 to 1.0 in 2017. In 2017, DART was 0.65× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 236220 · Riverside, CA AT/BELOW-IND · MID

Grade A · TCR 0.8 · 27% of ind

DART 0.5 DART
RANK #63/486
PHOTO Urban Atelier Group …
BOOK 2y book
INJ 3 inj
SIZE ~178 FTE

Nearest TCR peer: Urban Atelier Group Main Office (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

This site

0.8
Urban Atelier

0.8
Novak Construc

0.8
Construction S

0.8
Parrish-McCall

0.8

What this shows Stronghold Engineering, Inc. averages 0.8 TCR (27% of the Commercial building construction general contractors BLS benchmark).

Stronghold Engineering, Inc. TCR series: 2016=0.6 · 2017=1 · BLS 2.9

Where Stronghold Engineering, Inc. falls in its industry

4,692 Commercial building constructi establishments

Safer than 83% of graded establishments in this industry, whose median TCR is 2.3.

Grade A

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #63 safest of 486 Commercial building constructi employers in California.

Stronghold Engineering, Inc. (178 employees, TCR 0.8) among 29 same-industry peers, split at the industry median of 55 employees and a TCR of 2.3

Stronghold Engineering, Inc. has more employees than the Commercial building construction general median and a lower injury rate than the industry's median TCR of 2.3. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	DART	Injuries	Illnesses	Fatalities
2017	1.0	0.5	2	0	0
2016	0.6	0.0	1	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

236220 · CA · Riverside

4,692 Commercial building construction general contractors employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 536 employers in Riverside, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Urban Atelier Group Main Office	NEW YORK, NY	0.8 TCR
NAICS-TCR	Novak Construction Company	CHICAGO, IL	0.8 TCR
NAICS-TCR	Construction Services Group	NEOSHO, MO	0.8 TCR
NAICS-TCR	Parrish-McCall Constructors, Inc.	GAINESVILLE, FL	0.8 TCR
STATE-SIZE	Greenheart Farms, Inc.	ARROYO GRANDE	178 FTE
STATE-SIZE	Grape Valley Contracting	BAKERSFIELD	178 FTE
STATE-SIZE	Marmol Radziner, An Architecture Corporation	LOS ANGELES	178 FTE
STATE-SIZE	W.E. O'Neil Construction Co. of California	EL SEGUNDO	178 FTE
CITY-NEAR	UC Riverside	Riverside	8,676 FTE
CITY-NEAR	CA-21	Riverside	4,525 FTE
CITY-NEAR	Riverside Community Hospital	Riverside	2,354 FTE
CITY-NEAR	08681351 RIVERSIDE MED CENTER	Riverside	2,349 FTE
NAT-TCR	Glenn E. Sessions & Sons	Walden, CO	0.8 TCR
NAT-TCR	Kirlin Builders	Rockville, MD	0.8 TCR
NAT-TCR	Grid Solutions : AIS - RMW - Waynesboro, GA, USA	Waynesboro, GA	0.8 TCR
NAT-TCR	Saint Vincent Consultants in Cardiovascular Diseases LLC	Erie, PA	0.8 TCR
NAT-SIZE	Walcott St Warehouse Location #01	Worcester, MA	178 FTE
NAT-SIZE	Trinseo LLC Michigan Operations	Midland, MI	178 FTE
NAT-SIZE	Ft. Walton (Flftw)	Ft. Walton, FL	178 FTE
NAT-SIZE	001-DAY	Dayton, OH	178 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.