Machine shops · California

Summit Machine

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

A
Excellent Safety Record
0.8
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Summit Machine runs at 23% of its industry's injury rate - far safer than the typical Machine shops workplace, earning a grade A.

Summit Machine: 0.8 TCR = 23% of Machine shops BLS 3.3 · 3y Form 300A (see methodology below)

Summit Machine safety composite

Summit Machine scores strongest on total case rate (tcr) (safer than 94% of same-industry peers) and weakest on fatalities (safer than 50%), 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).

B

76/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0.76 per 100 workers

Safer than 94% of industry peers

DART rate
B 0 per 100 workers

Safer than 75% 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

−2.3

2017→2024

Summit Machine injury rate improved

Summit Machine's TCR fell 2.3 from 2.3 in 2017 to 0.0 in 2024. Peak filing year was 2017 at 2.3 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2017=2.3 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 332710 · Ontario, CA AT/BELOW-IND · MID

Grade A · TCR 0.8 · 23% of ind

  • DART 0.0 DART
  • RANK #7/126
  • PHOTO SKS Machine Inc.
  • BOOK 3y book
  • INJ 4 inj
  • SIZE ~103 FTE

Nearest TCR peer: SKS Machine Inc. (0.0 TCR gap)

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

Summit Machine in the TCR neighbourhood

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

TCR

What this shows Summit Machine averages 0.8 TCR (23% of the Machine shops BLS benchmark).

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

Summit Machine TCR series: 2017=2.3 · 2023=0 · 2024=0 · BLS 3.3

Where Summit Machine falls in its industry

1,821 Machine shops establishments

Safer than 94% 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 #7 safest of 126 Machine shops employers in California.

Summit Machine (103 employees, TCR 0.8) 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 Summit Machine
Summit Machine (103 employees, TCR 0.8) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 3.5

Summit Machine 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 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2017 2.3 1.7 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

332710 · CA · Ontario

1,821 Machine shops employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 599 employers in Ontario, 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 SKS Machine Inc. 0.8 TCR
NAICS-TCR Howco Metals Management Telge 0.8 TCR
NAICS-TCR Ansco Machine Company 0.8 TCR
NAICS-TCR CPE 0.8 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 Prime Healthcare Services Inc. Location: St. Mary's, Passaic LLC 46-3499370 (HP29) 10,997 FTE
CITY-NEAR CAONA - ONTARIO HUB 4,372 FTE
CITY-NEAR ONTARIO HUB (CAONA) 3,354 FTE
CITY-NEAR Atlantic Solutions Group Inc, Inc. DBA Empire Workforce Solutions 3,240 FTE
NAT-TCR Titan Electrical Contracting 0.8 TCR
NAT-TCR Florence Transmission Headquarters 0.8 TCR
NAT-TCR Corp Carriage House 0.8 TCR
NAT-TCR BrandSafway LLC - HF Sinclair El Dorado 0.8 TCR
NAT-SIZE Child Nutrition 103 FTE
NAT-SIZE USA Fastener 103 FTE
NAT-SIZE Tenowo, Inc 103 FTE
NAT-SIZE Sloan's Lake Rehabilitation Center 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, 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.