Semiconductor test equipment manufacturing · California

Aehr Test Systems

Fremont, CA · ~103 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
2.8
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Aehr Test Systems runs at 84% of its industry's injury rate - about level with the typical Semiconductor test equipment manufacturing workplace, earning a grade C.

Aehr Test Systems: 2.8 TCR = 84% of Semiconductor test equipment manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Aehr Test Systems safety composite

Aehr Test Systems scores strongest on dart rate (safer than 68% of same-industry peers) and weakest on total case rate (tcr) (safer than 13%), 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)
F 2.77 per 100 workers

Safer than 13% of industry peers

DART rate
C 0 per 100 workers

Safer than 68% 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%).

Rising injury rate

Aehr Test Systems: 0.0 → 3.4 TCR

Peak year 2023 @ 4.9 TCR · DART/TCR 0× in 2024

Aehr Test Systems's TCR rose 3.4 from 0.0 in 2022 to 3.4 in 2024. Peak filing year was 2023 at 4.9 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 334515 · Fremont, CA AT/BELOW-IND · MID

Grade C · TCR 2.8 · 84% of ind

  • DART 0.0 DART
  • RANK #33/35
  • PHOTO Doble Engineering Co…
  • BOOK 3y book
  • INJ 7 inj
  • SIZE ~103 FTE

Nearest TCR peer: Doble Engineering Company - Oklahoma (ENOSERV) (0.0 TCR gap)

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

Aehr Test Systems in the TCR neighbourhood

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

TCR

What this shows Aehr Test Systems averages 2.8 TCR (84% of the Semiconductor test equipment manufacturing BLS benchmark).

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

Aehr Test Systems TCR series: 2022=0 · 2023=4.9 · 2024=3.4 · BLS 3.3

Where Aehr Test Systems falls in its industry

125 Semiconductor test equipment m establishments

Safer than 13% of graded establishments in this industry, whose median TCR is 0.9.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #33 safest of 35 Semiconductor test equipment m employers in California.

Aehr Test Systems (103 employees, TCR 2.8) among 29 same-industry peers, split at the industry median of 86 employees and a TCR of 0.9 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 05001,0001,5002,0002,500 05101520 Average employees Total Case Rate Aehr Test Systems
Aehr Test Systems (103 employees, TCR 2.8) among 29 same-industry peers, split at the industry median of 86 employees and a TCR of 0.9

Aehr Test Systems has more employees than the Semiconductor test equipment manufacturi median and a higher injury rate than the industry's median TCR of 0.9. 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 3.4 0.0 3 0 0
2023 4.9 0.0 4 0 0
2022 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

334515 · CA · Fremont

125 Semiconductor test equipment manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 348 employers in Fremont, 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 Doble Engineering Company - Oklahoma (ENOSERV) 2.7 TCR
NAICS-TCR Webasto Ontario 2.6 TCR
NAICS-TCR HABCO 2.5 TCR
NAICS-TCR Flow Data 2.5 TCR
STATE-SIZE T&A Onions - Huron - Harvest 103 FTE
STATE-SIZE Macdoel Fields 103 FTE
STATE-SIZE Alexandra Dates Inc 103 FTE
STATE-SIZE DiMare Company 103 FTE
CITY-NEAR NA-US-CA-Fremont-45500 Fremont Blvd 21,378 FTE
CITY-NEAR NA-US-CA-Fremont-Factory 12,707 FTE
CITY-NEAR California Department of Transportation Facility 517 2,891 FTE
CITY-NEAR Lam Research Corp. Fremont Campus 2,887 FTE
NAT-TCR D1930 2.8 TCR
NAT-TCR Warehouse 5 2.8 TCR
NAT-TCR Wheeler Trucking - Drivers Only 2.8 TCR
NAT-TCR SitelogIQ-C&ITX 2.8 TCR
NAT-SIZE Design Transportation Services Inc 103 FTE
NAT-SIZE The HT Hackney Co 103 FTE
NAT-SIZE Zimmer Biomet AE Medical 103 FTE
NAT-SIZE HGI Toledo Perrysburg 103 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. 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.