Diodes, solid-state (e.g., germanium, silicon), manufacturing · Massachusetts
20 Alpha Rd. Chelmsford, MA
Chelmsford, MA · ~206 workers · 8 years of OSHA Injury Tracking Application data.
- C
- Average Safety Record
- 2.8
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
20 Alpha Rd. Chelmsford, MA runs at 85% of its industry's injury rate - about level with the typical Diodes, solid-state (e.g., germanium, silicon), manufacturing workplace, earning a grade C.
20 Alpha Rd. Chelmsford, MA: 2.8 TCR = 85% of Diodes, solid-state (e.g., germanium, silicon), manufacturing BLS 3.3 · 8y Form 300A (see methodology below)
20 Alpha Rd. Chelmsford, MA safety composite
20 Alpha Rd. Chelmsford, MA scores strongest on dart rate (safer than 77% of same-industry peers) and weakest on total case rate (tcr) (safer than 9%), 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).
43/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- F 2.81 per 100 workers
Safer than 9% 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
−1.4
2017→2024
20 Alpha Rd. Chelmsford, MA injury rate improved
20 Alpha Rd. Chelmsford, MA's TCR fell 1.4 from 1.9 in 2017 to 0.4 in 2024. Peak filing year was 2018 at 15.6 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).
2017=1.9 · 2018=15.6 · 2019=2.6 · 2020=0.9 · 2021=0.9 · 2022=0.0 · 2023=0.0 · 2024=0.4
OSHA ITA Form 300A scorecard
Establishment book 334413 · Chelmsford, MA AT/BELOW-IND · MID
Grade C · TCR 2.8 · 85% of ind
- DART 0.0 DART
- RANK #30/31
- PHOTO FormFactor Inc. Carl…
- BOOK 8y book
- INJ 9 inj
- SIZE ~206 FTE
Nearest TCR peer: FormFactor Inc. Carlsbad, CA (0.0 TCR gap)
Read with this employer → · Industry book → · Massachusetts employers → · Look up another →
20 Alpha Rd. Chelmsford, MA in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
20 Alpha Rd. Chelmsford, MA
2.8 TCR
- FormFactor Inc
FormFactor Inc. Carlsbad, CA
2.8 TCR
- TowerJazz Semi
TowerJazz Semiconductor Newport Beach
2.8 TCR
- II-VI MS
II-VI MS
2.8 TCR
- Ronler Acres C
Ronler Acres Campus
2.8 TCR
What this shows 20 Alpha Rd. Chelmsford, MA averages 2.8 TCR (85% of the Diodes, solid-state (e.g., germanium, silicon), manufacturing BLS benchmark).
20 Alpha Rd. Chelmsford, MA TCR series: 2017=1.9 · 2018=15.6 · 2019=2.6 · 2020=0.9 · 2021=0.9 · 2022=0 · 2023=0 · 2024=0.4 · BLS 3.3
Where 20 Alpha Rd. Chelmsford, MA falls in its industry
437 Diodes, solid-state (e.g., ger establishmentsSafer than 9% of graded establishments in this industry, whose median TCR is 0.9.
Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #30 safest of 31 Diodes, solid-state (e.g., ger employers in Massachusetts.
20 Alpha Rd. Chelmsford, MA has fewer employees than the Diodes, solid-state (e.g., germanium, si 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 | 0.4 | 0.0 | 1 | 0 | 0 |
| 2023 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2022 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2021 | 0.9 | 0.5 | 1 | 1 | 0 |
| 2020 | 0.9 | 0.5 | 1 | 1 | 0 |
| 2019 | 2.6 | 2.1 | 3 | 2 | 0 |
| 2018 | 15.6 | 0.0 | 2 | 0 | 0 |
| 2017 | 1.9 | 1.9 | 1 | 2 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
334413 · MA · Chelmsford
437 Diodes, solid-state (e.g., germanium, silicon), manufacturing employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 66 employers in Chelmsford, MA · 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 | FormFactor Inc. Carlsbad, CA | 2.8 TCR |
| NAICS-TCR | TowerJazz Semiconductor Newport Beach | 2.8 TCR |
| NAICS-TCR | II-VI MS | 2.8 TCR |
| NAICS-TCR | Ronler Acres Campus | 2.8 TCR |
| STATE-SIZE | United Civil, Inc. | 206 FTE |
| STATE-SIZE | Harvey Tool Company, LLC | 206 FTE |
| STATE-SIZE | Boston Sales & DSD Facility | 206 FTE |
| STATE-SIZE | NAI-0033-0033-02573 FAC-02573-QUINCY-MA | 206 FTE |
| CITY-NEAR | CHELMSFORD (MACHE) | 1,879 FTE |
| CITY-NEAR | MACHE - CHELMSFORD | 1,867 FTE |
| CITY-NEAR | ZOLL Medical | 1,585 FTE |
| CITY-NEAR | Brooks Automation US, LLC. | 839 FTE |
| NAT-TCR | Sarbanand Enterprises | 2.8 TCR |
| NAT-TCR | Arts Center | 2.8 TCR |
| NAT-TCR | Dgdg 13, LLC | 2.8 TCR |
| NAT-TCR | Davis Equipment Inc | 2.8 TCR |
| NAT-SIZE | St Louis Syn | 206 FTE |
| NAT-SIZE | Waco | 206 FTE |
| NAT-SIZE | Sodexo at Rock Hill School District | 206 FTE |
| NAT-SIZE | Shop Rite of Timonium | 206 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.