Machine shops · California

Tamshell Corporation

Corona, CA · ~82 workers · 7 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.1
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Tamshell Corporation runs at 95% of its industry's injury rate - about level with the typical Machine shops workplace, earning a grade C.

Tamshell Corporation: 3.1 TCR = 95% of Machine shops BLS 3.3 · 7y Form 300A (see methodology below)

Tamshell Corporation safety composite

Tamshell Corporation scores strongest on total case rate (tcr) (safer than 55% of same-industry peers) and weakest on dart rate (safer than 21%), 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).

D

42/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 3.12 per 100 workers

Safer than 55% of industry peers

DART rate
F 3.21 per 100 workers

Safer than 21% of industry peers

Fatalities
D 0

Safer than 50% 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

−0.5

2017→2024

Tamshell Corporation injury rate improved

Tamshell Corporation's TCR fell 0.5 from 3.8 in 2017 to 3.2 in 2024. Peak filing year was 2019 at 6.1 TCR. In 2024, DART was 1.03× this establishment's average TCR (severity share of cases).

2017=3.8 · 2018=5.4 · 2019=6.1 · 2021=0.0 · 2022=0.0 · 2023=3.4 · 2024=3.2

OSHA ITA Form 300A scorecard

Establishment book 332710 · Corona, CA AT/BELOW-IND · SMALL

Grade C · TCR 3.1 · 95% of ind

  • DART 3.2 DART
  • RANK #61/126
  • PHOTO Central Machine and …
  • BOOK 7y book
  • INJ 15 inj
  • SIZE ~82 FTE

Nearest TCR peer: Central Machine and Fabrication (0.0 TCR gap)

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

Tamshell Corporation in the TCR neighbourhood

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

TCR

What this shows Tamshell Corporation averages 3.1 TCR (95% of the Machine shops BLS benchmark).

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

Tamshell Corporation TCR series: 2017=3.8 · 2018=5.4 · 2019=6.1 · 2021=0 · 2022=0 · 2023=3.4 · 2024=3.2 · BLS 3.3

Where Tamshell Corporation falls in its industry

1,821 Machine shops establishments

Safer than 55% of graded establishments in this industry, whose median TCR is 3.5.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #61 safest of 126 Machine shops employers in California.

Tamshell Corporation (82 employees, TCR 3.1) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 3.5 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 051015 Average employees Total Case Rate Tamshell Corporation
Tamshell Corporation (82 employees, TCR 3.1) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 3.5

Tamshell Corporation has more employees than the Machine shops median and a lower injury rate than the industry's median TCR of 3.5. 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 3.2 3.2 3 0 0
2023 3.4 2.3 3 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0
2019 6.1 4.0 4 2 0
2018 5.4 3.2 2 3 0
2017 3.8 3.8 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

332710 · CA · Corona

1,821 Machine shops employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 409 employers in Corona, 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 Central Machine and Fabrication 3.1 TCR
NAICS-TCR Thompson Gundrilling Inc. 3.1 TCR
NAICS-TCR CalmaxTechnologies01 3.1 TCR
NAICS-TCR Linamar Structures USA (Michigan) Inc. 3.1 TCR
STATE-SIZE West Coast Harvesting Inc. 82 FTE
STATE-SIZE Farm 82 FTE
STATE-SIZE Wight Vineyard Management, Inc. 82 FTE
STATE-SIZE Growers Harvesting LLC 82 FTE
CITY-NEAR Monster Energy Company 2535 Anselmo Dr 2,572 FTE
CITY-NEAR Monster Energy Company 2,388 FTE
CITY-NEAR Monster Energy Company - Anselmo Dr, Corona 2,335 FTE
CITY-NEAR California Department of Transportation Facility 289 1,587 FTE
NAT-TCR Chehalis 3.1 TCR
NAT-TCR Hobey's Inc 3.1 TCR
NAT-TCR Hale Early Education Center 3.1 TCR
NAT-TCR Northland Screw Products, Inc. 3.1 TCR
NAT-SIZE Sodexo at University of Tampa 82 FTE
NAT-SIZE Trans-System Inc - Phoenix 82 FTE
NAT-SIZE Lincoln High School 82 FTE
NAT-SIZE Bethany Retirement Home, Inc. 82 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, 2023, 2022, 2021, 2019, 2018, 2017. 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.