Fast-food restaurants · California

Ono-CORP

Diamond Bar, CA · ~961 workers · 2 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.1
Avg TCR
3.0
Industry avg
0
Fatalities
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The verdict

Ono-CORP runs at 35% of its industry's injury rate - far safer than the typical Fast-food restaurants workplace, earning a grade A.

Ono-CORP: 1.1 TCR = 35% of Fast-food restaurants BLS 3.0 · 2y Form 300A (see methodology below)

Ono-CORP safety composite

Ono-CORP scores strongest on total case rate (tcr) (safer than 94% of same-industry peers) and weakest on dart rate (safer than 40%), 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

64/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 1.06 per 100 workers

Safer than 94% of industry peers

DART rate
D 1.58 per 100 workers

Safer than 40% 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

Ono-CORP: 0.6 → 1.6 TCR

Peak year 2024 @ 1.6 TCR · DART/TCR 1.49× in 2024

Ono-CORP's TCR rose 1.0 from 0.6 in 2023 to 1.6 in 2024. In 2024, DART was 1.49× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 722513 · Diamond Bar, CA AT/BELOW-IND · MID

Grade A · TCR 1.1 · 35% of ind

  • DART 1.6 DART
  • RANK #30/264
  • PHOTO Marshall Subway's, LLC
  • BOOK 2y book
  • INJ 5 inj
  • SIZE ~961 FTE

Nearest TCR peer: Marshall Subway's, LLC (0.0 TCR gap)

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

Ono-CORP in the TCR neighbourhood

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

TCR

What this shows Ono-CORP averages 1.1 TCR (35% of the Fast-food restaurants BLS benchmark).

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

Ono-CORP TCR series: 2023=0.6 · 2024=1.6 · BLS 3.0

Where Ono-CORP falls in its industry

1,014 Fast-food restaurants establishments

Safer than 94% of graded establishments in this industry, whose median TCR is 4.8.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #30 safest of 264 Fast-food restaurants employers in California.

Ono-CORP (961 employees, TCR 1.1) among 29 same-industry peers, split at the industry median of 34 employees and a TCR of 4.8 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 05001,0001,500 0510152025 Average employees Total Case Rate Ono-CORP
Ono-CORP (961 employees, TCR 1.1) among 29 same-industry peers, split at the industry median of 34 employees and a TCR of 4.8

Ono-CORP has more employees than the Fast-food restaurants median and a lower injury rate than the industry's median TCR of 4.8. 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 1.6 1.6 2 0 0
2023 0.6 0.5 3 3 0

OSHA ITA peer cross-reference

Establishment peer ledger

722513 · CA · Diamond Bar

1,014 Fast-food restaurants employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 27 employers in Diamond Bar, 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 Marshall Subway's, LLC 1.1 TCR
NAICS-TCR lloyd products inc 1.1 TCR
NAICS-TCR Raising Cane's Chicken Fingers C605 1.1 TCR
NAICS-TCR STORE 11746 1.0 TCR
STATE-SIZE T&A - Huron - Harvest 961 FTE
STATE-SIZE Adventist Medical Center-Reedley 961 FTE
STATE-SIZE Salinas FLC 963 FTE
STATE-SIZE Cue Health, Inc 963 FTE
CITY-NEAR California Department of Transportation Facility 1 2,621 FTE
CITY-NEAR Niagara Bottling, LLC - Corporate 1,424 FTE
CITY-NEAR South Coast Air Quality Management District 798 FTE
CITY-NEAR 2179 - Diamond Bar 224 FTE
NAT-TCR Bridgeport CT 1.1 TCR
NAT-TCR Otis Elevator Company-Detroit 1.1 TCR
NAT-TCR Thomas Construction Group LLC 1.1 TCR
NAT-TCR Columbus 2 1.1 TCR
NAT-SIZE Foxconn Industrial Internet 961 FTE
NAT-SIZE Txrrk - Round Rock 961 FTE
NAT-SIZE North Babylon UFSD 961 FTE
NAT-SIZE Flint Hills Resources - West Plant 961 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. 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.