Bus bar structures, switchgear-type, manufacturing · California
Inertia Engineering
Stockton, CA · ~69 workers · 8 years of OSHA Injury Tracking Application data.
- F
- Failing Safety Record
- 7.5
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
Inertia Engineering runs at 226% of its industry's injury rate - far more dangerous than the typical Bus bar structures, switchgear-type, manufacturing workplace, earning a grade F.
Inertia Engineering: 7.5 TCR = 226% of Bus bar structures, switchgear-type, manufacturing BLS 3.3 · 8y Form 300A (see methodology below)
Inertia Engineering safety composite
Inertia Engineering scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (safer than 6%), 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).
22/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- F 7.46 per 100 workers
Safer than 6% of industry peers
- DART rate
- F 2.73 per 100 workers
Safer than 21% 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
−14.3
2017→2024
Inertia Engineering injury rate improved
Inertia Engineering's TCR fell 14.3 from 17.0 in 2017 to 2.7 in 2024. Peak filing year was 2017 at 17.0 TCR. In 2024, DART was 0.37× this establishment's average TCR (severity share of cases).
2017=17.0 · 2018=6.4 · 2019=3.7 · 2020=2.8 · 2021=2.8 · 2022=8.4 · 2023=15.8 · 2024=2.7
OSHA ITA Form 300A scorecard
Establishment book 335313 · Stockton, CA ABOVE-IND · SMALL
Grade F · TCR 7.5 · 226% of ind
- DART 2.7 DART
- RANK #14/16
- PHOTO Royal Switchgear
- BOOK 8y book
- INJ 35 inj
- SIZE ~69 FTE
Nearest TCR peer: Royal Switchgear (0.1 TCR gap)
Read with this employer → · Industry book → · California employers → · Look up another →
Inertia Engineering in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- Youngstown Pip
Youngstown Pipe and Steel, LLc
7.9 TCR
- PBS
PBS
7.8 TCR
- This site
Inertia Engineering
7.5 TCR
- Royal Switchge
Royal Switchgear
7.3 TCR
- ESS Metron LLC
ESS Metron LLC
7.3 TCR
What this shows Inertia Engineering averages 7.5 TCR (226% of the Bus bar structures, switchgear-type, manufacturing BLS benchmark).
Inertia Engineering TCR series: 2017=17 · 2018=6.4 · 2019=3.7 · 2020=2.8 · 2021=2.8 · 2022=8.4 · 2023=15.8 · 2024=2.7 · BLS 3.3
Where Inertia Engineering falls in its industry
226 Bus bar structures, switchgear establishmentsSafer than 6% of graded establishments in this industry, whose median TCR is 1.9.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #14 safest of 16 Bus bar structures, switchgear employers in California.
Inertia Engineering has fewer employees than the Bus bar structures, switchgear-type, man median and a higher injury rate than the industry's median TCR of 1.9. 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 | 2.7 | 2.7 | 2 | 0 | 0 |
| 2023 | 15.8 | 6.6 | 12 | 0 | 0 |
| 2022 | 8.4 | 7.0 | 6 | 0 | 0 |
| 2021 | 2.8 | 1.4 | 2 | 0 | 0 |
| 2020 | 2.8 | 1.4 | 2 | 0 | 0 |
| 2019 | 3.7 | 3.7 | 3 | 0 | 0 |
| 2018 | 6.4 | 2.1 | 3 | 0 | 0 |
| 2017 | 17.0 | 6.8 | 5 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
335313 · CA · Stockton
226 Bus bar structures, switchgear-type, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 605 employers in Stockton, 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 | Royal Switchgear | 7.3 TCR |
| NAICS-TCR | ESS Metron LLC | 7.3 TCR |
| NAICS-TCR | PBS | 7.8 TCR |
| NAICS-TCR | Youngstown Pipe and Steel, LLc | 7.9 TCR |
| STATE-SIZE | Woolf Enterprises | 69 FTE |
| STATE-SIZE | Terranova Ranch, Inc | 69 FTE |
| STATE-SIZE | Rayo Shop | 69 FTE |
| STATE-SIZE | Sun Pacific Harvesting | Citrus Harvesting | 69 FTE |
| CITY-NEAR | LaSalette Care and Rehabilitation Center | 5,249 FTE |
| CITY-NEAR | SCKCX0ABX SCK - ABX | 4,573 FTE |
| CITY-NEAR | CA-18 | 4,525 FTE |
| CITY-NEAR | CDCR CA Health Care Facility | 3,227 FTE |
| NAT-TCR | Kelly Fabricators Corp. | 7.5 TCR |
| NAT-TCR | Essentia Health Sandstone | 7.5 TCR |
| NAT-TCR | Rouses Market #25 | 7.5 TCR |
| NAT-TCR | LAS | 7.5 TCR |
| NAT-SIZE | Byron Primary School | 69 FTE |
| NAT-SIZE | Terminix Co of EC | 69 FTE |
| NAT-SIZE | Maz Shared Management Company, LLC | 69 FTE |
| NAT-SIZE | Century Electric Inc. | 69 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.