Switches for electrical wiring (e.g., pressure, pushbutton, snap, tumbler) manufacturing · Illinois

OTTO Engineering

Carpentersville, IL · ~536 workers · 2 years of OSHA Injury Tracking Application data.

B
Good Safety Record
1.9
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

OTTO Engineering runs at 59% of its industry's injury rate - safer than the typical Switches for electrical wiring (e.g., pressure, pushbutton, snap, tumbler) manufacturing workplace, earning a grade B.

OTTO Engineering: 1.9 TCR = 59% of Switches for electrical wiring (e.g., pressure, pushbutton, snap, tumbler) manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

OTTO Engineering safety composite

OTTO Engineering scores strongest on total case rate (tcr) (safer than 54% of same-industry peers) and weakest on dart rate (safer than 38%), 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

48/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 1.95 per 100 workers

Safer than 54% of industry peers

DART rate
D 1.31 per 100 workers

Safer than 38% 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

−0.5

2022→2023

OTTO Engineering injury rate improved

OTTO Engineering's TCR fell 0.5 from 2.2 in 2022 to 1.7 in 2023. Peak filing year was 2022 at 2.2 TCR. In 2023, DART was 0.67× this establishment's average TCR (severity share of cases).

2022=2.2 · 2023=1.7

OSHA ITA Form 300A scorecard

Establishment book 335931 · Carpentersville, IL AT/BELOW-IND · MID

Grade B · TCR 1.9 · 59% of ind

  • DART 1.3 DART
  • RANK #15/17
  • PHOTO Salt Lake Cable & Ha…
  • BOOK 2y book
  • INJ 22 inj
  • SIZE ~536 FTE

Nearest TCR peer: Salt Lake Cable & Harness (0.0 TCR gap)

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

OTTO Engineering in the TCR neighbourhood

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

TCR

What this shows OTTO Engineering averages 1.9 TCR (59% of the Switches for electrical wiring (e.g., pressure, pushbutton, snap, tumbler) manufacturing BLS benchmark).

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

OTTO Engineering TCR series: 2022=2.2 · 2023=1.7 · BLS 3.3

Where OTTO Engineering falls in its industry

152 Switches for electrical wiring establishments

Safer than 54% of graded establishments in this industry, whose median TCR is 2.0.

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #15 safest of 17 Switches for electrical wiring employers in Illinois.

OTTO Engineering (536 employees, TCR 1.9) among 29 same-industry peers, split at the industry median of 107 employees and a TCR of 2.0 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 0200400600 012345 Average employees Total Case Rate OTTO Engineering
OTTO Engineering (536 employees, TCR 1.9) among 29 same-industry peers, split at the industry median of 107 employees and a TCR of 2.0

OTTO Engineering has more employees than the Switches for electrical wiring (e.g., pr median and a lower injury rate than the industry's median TCR of 2.0. 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 1.7 1.3 9 0 0
2022 2.2 0.7 13 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

335931 · IL · Carpentersville

152 Switches for electrical wiring (e.g., pressure, pushbutton, snap, tumbler) manufacturing employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 40 employers in Carpentersville, IL · 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 Salt Lake Cable & Harness 1.9 TCR
NAICS-TCR Subconn Inc. 2.0 TCR
NAICS-TCR Triton Mfg 1.9 TCR
NAICS-TCR Interplex 2.0 TCR
STATE-SIZE Fellowes, Inc Itasca 536 FTE
STATE-SIZE 4795-EA-ORD-CHICAGO - OHARE-EAGLE FLIGHT OPS 536 FTE
STATE-SIZE 1953-1111 535 FTE
STATE-SIZE Customer Service Crystal Lake Product Center 535 FTE
CITY-NEAR Recreation Services 480 FTE
CITY-NEAR WM 1531 329 FTE
CITY-NEAR 1531 321 FTE
CITY-NEAR Dundee-Crown High School 295 FTE
NAT-TCR JANCOA Janitorial Services, Inc. 1.9 TCR
NAT-TCR John Gross and Company 1.9 TCR
NAT-TCR houck specialty contractors 1.9 TCR
NAT-TCR Woodlawn Svc Ctr 1.9 TCR
NAT-SIZE Tompkins Off Ste 536 FTE
NAT-SIZE UT004 536 FTE
NAT-SIZE Merchants Automotive Group LLC 536 FTE
NAT-SIZE 428461-San Juan Pr P&Dc 536 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. 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.