Low voltage electrical work · California

Thompson Engineering

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

Riverside, CA · ~39 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 4.5
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Thompson Engineering runs at 160% of its industry's injury rate - more dangerous than the typical Low voltage electrical work workplace, earning a grade D.

Thompson Engineering: 4.5 TCR = 160% of Low voltage electrical work BLS 2.8 · 2y Form 300A (see methodology below)

Thompson Engineering safety composite

Thompson Engineering scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 9%), 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).

27/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 4.47 per 100 workers

Safer than 27% of industry peers
DART rate: F 5.81 per 100 workers

Safer than 9% 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

Thompson Engineering: 3.1 → 5.8 TCR

Peak year 2024 @ 5.8 TCR · DART/TCR 1.3× in 2024

Thompson Engineering's TCR rose 2.7 from 3.1 in 2020 to 5.8 in 2024. In 2024, DART was 1.3× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238210 · Riverside, CA ABOVE-IND · SMALL

Grade D · TCR 4.5 · 160% of ind

DART 5.8 DART
RANK #367/548
PHOTO Current Electric Com…
BOOK 2y book
INJ 3 inj
SIZE ~39 FTE

Nearest TCR peer: Current Electric Company (0.0 TCR gap)

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

This site

4.5
Current Electr

4.5
Quanta Systems

4.5
Landmark Elect

4.5
District Elect

4.5

What this shows Thompson Engineering averages 4.5 TCR (160% of the Low voltage electrical work BLS benchmark).

Thompson Engineering TCR series: 2020=3.1 · 2024=5.8 · BLS 2.8

Where Thompson Engineering falls in its industry

4,550 Low voltage electrical work establishments

Safer than 27% of graded establishments in this industry, whose median TCR is 2.5.

Grade D

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #367 safest of 548 Low voltage electrical work employers in California.

Thompson Engineering (39 employees, TCR 4.5) among 29 same-industry peers, split at the industry median of 63 employees and a TCR of 2.5

Thompson Engineering has fewer employees than the Low voltage electrical work median and a higher injury rate than the industry's median TCR of 2.5. 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
2024	5.8	5.8	2	0	0
2020	3.1	3.1	1	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238210 · CA · Riverside

4,550 Low voltage electrical work 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	Current Electric Company	WAUWATOSA, WI	4.5 TCR
NAICS-TCR	Quanta Systems, LLC	HERNDON, VA	4.5 TCR
NAICS-TCR	Landmark Electric	HOUSTON, TX	4.5 TCR
NAICS-TCR	District Electrical Services	WASHINGTON, DC	4.5 TCR
STATE-SIZE	San Felipe Farms	HOLLISTER	39 FTE
STATE-SIZE	Schreiner Brothers Farms	KNIGHTS LANDING	39 FTE
STATE-SIZE	TLC Custom Farming Company LLC	GREENFIELD	39 FTE
STATE-SIZE	Sonoma Valley Vineyards	GEYSERVILLE	39 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	Waste Partners	Pine River, MN	4.5 TCR
NAT-TCR	Fairfield Pa	Fairfield, PA	4.5 TCR
NAT-TCR	Skylease I Inc	Miami, FL	4.5 TCR
NAT-TCR	Trendsetter Homes LLC	Springfield, MO	4.5 TCR
NAT-SIZE	SA Structural Repair LLC	San Antonio, TX	39 FTE
NAT-SIZE	Wayne County Baird Detention Facility, MI	Hamtramck, MI	39 FTE
NAT-SIZE	Excelsior Blower Systems, Inc.	Blandon, PA	39 FTE
NAT-SIZE	DeMontrond Cleveland	Cleveland, TX	39 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: 2024, 2020. 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.