Heat treating metals and metal products for the trade · California

Thermofusion Inc

Hayward, CA · ~29 workers · 7 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.3
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Thermofusion Inc runs at 160% of its industry's injury rate - more dangerous than the typical Heat treating metals and metal products for the trade workplace, earning a grade D.

Thermofusion Inc: 5.3 TCR = 160% of Heat treating metals and metal products for the trade BLS 3.3 · 7y Form 300A (see methodology below)

Thermofusion Inc safety composite

Thermofusion Inc scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 35%), 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

39/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 5.27 per 100 workers

Safer than 35% of industry peers

DART rate
D 3.23 per 100 workers

Safer than 36% 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

−4.3

2017→2023

Thermofusion Inc injury rate improved

Thermofusion Inc's TCR fell 4.3 from 7.5 in 2017 to 3.2 in 2023. Peak filing year was 2018 at 7.8 TCR. In 2023, DART was 0.61× this establishment's average TCR (severity share of cases).

2017=7.5 · 2018=7.8 · 2019=6.9 · 2020=4.2 · 2021=0.0 · 2022=7.4 · 2023=3.2

OSHA ITA Form 300A scorecard

Establishment book 332811 · Hayward, CA ABOVE-IND · SMALL

Grade D · TCR 5.3 · 160% of ind

  • DART 3.2 DART
  • RANK #11/14
  • PHOTO Atmosphere Annealing…
  • BOOK 7y book
  • INJ 10 inj
  • SIZE ~29 FTE

Nearest TCR peer: Atmosphere Annealing Canton (0.0 TCR gap)

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

Thermofusion Inc in the TCR neighbourhood

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

TCR

What this shows Thermofusion Inc averages 5.3 TCR (160% of the Heat treating metals and metal products for the trade BLS benchmark).

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

Thermofusion Inc TCR series: 2017=7.5 · 2018=7.8 · 2019=6.9 · 2020=4.2 · 2021=0 · 2022=7.4 · 2023=3.2 · BLS 3.3

Where Thermofusion Inc falls in its industry

248 Heat treating metals and metal establishments

Safer than 35% of graded establishments in this industry, whose median TCR is 4.2.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #11 safest of 14 Heat treating metals and metal employers in California.

Thermofusion Inc (29 employees, TCR 5.3) among 29 same-industry peers, split at the industry median of 38 employees and a TCR of 4.2 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 05001,0001,5002,000 051015 Average employees Total Case Rate Thermofusion Inc
Thermofusion Inc (29 employees, TCR 5.3) among 29 same-industry peers, split at the industry median of 38 employees and a TCR of 4.2

Thermofusion Inc has fewer employees than the Heat treating metals and metal products median and a higher injury rate than the industry's median TCR of 4.2. 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 3.2 3.2 1 0 0
2022 7.4 3.7 2 0 0
2021 0.0 0.0 0 0 0
2020 4.2 4.2 1 0 0
2019 6.9 0.0 2 0 0
2018 7.8 3.9 2 0 0
2017 7.5 3.7 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

332811 · CA · Hayward

248 Heat treating metals and metal products for the trade employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 336 employers in Hayward, 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 Atmosphere Annealing Canton 5.3 TCR
NAICS-TCR Paulo - St. Louis 5.3 TCR
NAICS-TCR Paulo - Murfreesboro 5.2 TCR
NAICS-TCR Specialty Steel Treating, Inc. 5.2 TCR
STATE-SIZE Sean V. Doherty Farms 29 FTE
STATE-SIZE Blanco Farms, LLC 29 FTE
STATE-SIZE CONSTRUCTION SUPPORT SHOP 29 FTE
STATE-SIZE Cottonwood Farms 29 FTE
CITY-NEAR California Department of Transportation Facility 518 2,891 FTE
CITY-NEAR California Department of Transportation Facility 100 2,817 FTE
CITY-NEAR California Department of Transportation Facility 117 2,817 FTE
CITY-NEAR St Rose Hospital 929 FTE
NAT-TCR Harcon, Inc. 5.3 TCR
NAT-TCR JR RAMON Demolition 5.3 TCR
NAT-TCR RENK Corporation 5.3 TCR
NAT-TCR Federal Maintenance Hawaii LLC 5.3 TCR
NAT-SIZE FTC Aggregate Supply 29 FTE
NAT-SIZE Shoemaker Lumber 29 FTE
NAT-SIZE Ryder 3799 29 FTE
NAT-SIZE Evonik Corporation 29 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, 2022, 2021, 2020, 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.