Microcontroller chip manufacturing · Arizona

SUMCO

Phoenix, AZ · ~435 workers · 6 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.1
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

SUMCO runs at 32% of its industry's injury rate - far safer than the typical Microcontroller chip manufacturing workplace, earning a grade A.

SUMCO: 1.1 TCR = 32% of Microcontroller chip manufacturing BLS 3.3 · 6y Form 300A (see methodology below)

SUMCO safety composite

SUMCO scores strongest on dart rate (safer than 77% of same-industry peers) and weakest on total case rate (tcr) (safer than 44%), 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).

C

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 1.06 per 100 workers

Safer than 44% of industry peers

DART rate
B 0 per 100 workers

Safer than 77% 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

−0.7

2019→2024

SUMCO injury rate improved

SUMCO's TCR fell 0.7 from 0.9 in 2019 to 0.2 in 2024. Peak filing year was 2020 at 2.1 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2019=0.9 · 2020=2.1 · 2021=1.0 · 2022=1.2 · 2023=0.9 · 2024=0.2

OSHA ITA Form 300A scorecard

Establishment book 334413 · Phoenix, AZ AT/BELOW-IND · MID

Grade A · TCR 1.1 · 32% of ind

  • DART 0.0 DART
  • RANK #11/22
  • PHOTO Trumpf Photonics Inc
  • BOOK 6y book
  • INJ 25 inj
  • SIZE ~435 FTE

Nearest TCR peer: Trumpf Photonics Inc (0.0 TCR gap)

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

SUMCO in the TCR neighbourhood

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

TCR

What this shows SUMCO averages 1.1 TCR (32% of the Microcontroller chip manufacturing BLS benchmark).

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

SUMCO TCR series: 2019=0.9 · 2020=2.1 · 2021=1 · 2022=1.2 · 2023=0.9 · 2024=0.2 · BLS 3.3

Where SUMCO falls in its industry

437 Microcontroller chip manufactu establishments

Safer than 44% of graded establishments in this industry, whose median TCR is 0.9.

More dangerous than peersSafer than peers

Narrower to Arizona alone (the establishments it most directly competes with for workers and contracts): ranked #11 safest of 22 Microcontroller chip manufactu employers in Arizona.

SUMCO (435 employees, TCR 1.1) among 29 same-industry peers, split at the industry median of 216 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 01,0002,0003,0004,000 0246 Average employees Total Case Rate SUMCO
SUMCO (435 employees, TCR 1.1) among 29 same-industry peers, split at the industry median of 216 employees and a TCR of 0.9

SUMCO has more employees than the Microcontroller chip manufacturing 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 0.2 0.0 1 0 0
2023 0.9 0.0 4 0 0
2022 1.2 0.9 4 1 0
2021 1.0 0.5 4 0 0
2020 2.1 0.9 9 0 0
2019 0.9 0.7 3 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

334413 · AZ · Phoenix

437 Microcontroller chip manufacturing employers nationwide with a credible TCR · 9,594 rated employers in Arizona with headcount on file · 2,630 employers in Phoenix, AZ · 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 Trumpf Photonics Inc 1.1 TCR
NAICS-TCR First Solar California Technology Center 1.1 TCR
NAICS-TCR SICK Savage 1.1 TCR
NAICS-TCR MACOM Lowell 1.1 TCR
STATE-SIZE Haydon Building Corp 435 FTE
STATE-SIZE Phoenix 2 435 FTE
STATE-SIZE Phoenix 434 FTE
STATE-SIZE TD SYNNEX Gilbert 436 FTE
CITY-NEAR Maricopa County 15,504 FTE
CITY-NEAR Phoenix Children's Hospital 7,575 FTE
CITY-NEAR All Company 6,261 FTE
CITY-NEAR 6403-64030500 6,153 FTE
NAT-TCR Tracy Grading and Paving Inc. 1.1 TCR
NAT-TCR The Boldt Company 1.1 TCR
NAT-TCR Johnson-Peltier 1.1 TCR
NAT-TCR Hickory - Flexible Packaging - E025 1.1 TCR
NAT-SIZE Warner Bros. Pictures, a division of WB Studio Enterprises Inc. 435 FTE
NAT-SIZE Muncy Valley Hospital 435 FTE
NAT-SIZE S & S Harvest Inc 435 FTE
NAT-SIZE Newport Industries 435 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, 2020, 2019. 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.