Fire sprinkler system installation · California

Thorpe Design Inc

Brentwood, CA · ~182 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
5.9
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Thorpe Design Inc runs at 211% of its industry's injury rate - far more dangerous than the typical Fire sprinkler system installation workplace, earning a grade F.

Thorpe Design Inc: 5.9 TCR = 211% of Fire sprinkler system installation BLS 2.8 · 2y Form 300A (see methodology below)

Thorpe Design Inc safety composite

Thorpe Design Inc scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 28%), 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).

F

34/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.91 per 100 workers

Safer than 28% of industry peers

DART rate
F 2.97 per 100 workers

Safer than 29% 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%).

TCR Δ

−1.9

2018→2023

Thorpe Design Inc injury rate improved

Thorpe Design Inc's TCR fell 1.9 from 6.9 in 2018 to 5.0 in 2023. Peak filing year was 2018 at 6.9 TCR. In 2023, DART was 0.5× this establishment's average TCR (severity share of cases).

2018=6.9 · 2023=5.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Brentwood, CA ABOVE-IND · MID

Grade F · TCR 5.9 · 211% of ind

  • DART 3.0 DART
  • RANK #395/594
  • PHOTO Bismarck - H A Thomp…
  • BOOK 2y book
  • INJ 28 inj
  • SIZE ~182 FTE

Nearest TCR peer: Bismarck - H A Thompson & Sons, Inc. (0.0 TCR gap)

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

Thorpe Design Inc in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Thorpe Design Inc averages 5.9 TCR (211% of the Fire sprinkler system installation BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Thorpe Design Inc TCR series: 2018=6.9 · 2023=5 · BLS 2.8

Where Thorpe Design Inc falls in its industry

5,793 Fire sprinkler system installa establishments

Safer than 28% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #395 safest of 594 Fire sprinkler system installa employers in California.

Thorpe Design Inc (182 employees, TCR 5.9) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 050100150200250 05101520 Average employees Total Case Rate Thorpe Design Inc
Thorpe Design Inc (182 employees, TCR 5.9) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Thorpe Design Inc has more employees than the Fire sprinkler system installation median and a higher injury rate than the industry's median TCR of 3.3. 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
2023 5.0 3.0 10 0 0
2018 6.9 3.0 18 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · CA · Brentwood

5,793 Fire sprinkler system installation employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 49 employers in Brentwood, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Bismarck - H A Thompson & Sons, Inc. 5.9 TCR
NAICS-TCR B&I Contractors - Tampa Office 5.9 TCR
NAICS-TCR Air Control Home Services 5.9 TCR
NAICS-TCR Climate Pros-Westland 5.9 TCR
STATE-SIZE ATI Ag Services, LLC 182 FTE
STATE-SIZE WESTERN WTR DIST HDQ 182 FTE
STATE-SIZE Turlock South Processing Plant 182 FTE
STATE-SIZE ARYZTA - Santa Ana 182 FTE
CITY-NEAR 6962-SWY-0025-0025-02621 226 FTE
CITY-NEAR SWY-0025-0025-02621 FAC-02621-BRENTWOOD-CA 203 FTE
CITY-NEAR 6962-SWY 0025 2621 189 FTE
CITY-NEAR Brentwood #052 175 FTE
NAT-TCR STR0521 5.9 TCR
NAT-TCR Joanne's House 5.9 TCR
NAT-TCR PACE - Winkler 5.9 TCR
NAT-TCR Mayo Clinic Health System-Oakridge (Osseo) 5.9 TCR
NAT-SIZE Rome - #206 182 FTE
NAT-SIZE Eden Springs Nursing and Rehab 182 FTE
NAT-SIZE *Karabots Medical Bldg - Powell St 182 FTE
NAT-SIZE Advanced Rehabilitation and Healthcare of Wichita Falls 182 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: 2023, 2018. 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.