Semiconductor devices manufacturing · Massachusetts

Allegro MicroSystems, LLC (MAR)

Name: Allegro MicroSystems, LLC (MAR) Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Marlborough, MA · ~180 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 0.0
Avg TCR: 3.3
Industry avg: 0
Fatalities

Subscribe to safety-record updates (RSS)

The verdict

Allegro MicroSystems, LLC (MAR) runs at 0% of its industry's injury rate - about level with the typical Semiconductor devices manufacturing workplace, earning a grade C.

Allegro MicroSystems, LLC (MAR): 0.0 TCR = 0% of Semiconductor devices manufacturing BLS 3.3 · 4y Form 300A (see methodology below)

Allegro MicroSystems, LLC (MAR) safety composite

Allegro MicroSystems, LLC (MAR) scores strongest on total case rate (tcr) (safer than 100% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

80/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): A 0 per 100 workers

Safer than 100% 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%).

Allegro MicroSystems, LLC (MAR) held a steady TCR band

Allegro MicroSystems, LLC (MAR)'s TCR held near 0.0 from 0.0 in 2018 to 0.0 in 2021. Peak filing year was 2018 at 0.0 TCR.

2018=0.0 · 2019=0.0 · 2020=0.0 · 2021=0.0

OSHA ITA Form 300A scorecard

Establishment book 334413 · Marlborough, MA AT/BELOW-IND · MID

Grade C · TCR 0.0 · 0% of ind

DART 0.0 DART
RANK #0/31
PHOTO LTD Material LLC
BOOK 4y book
INJ 0 inj
SIZE ~180 FTE

Nearest TCR peer: LTD Material LLC (0.0 TCR gap)

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

First Solar Te

0.1
This site

0
LTD Material L

0
North Reading

0
Remote Sites

0

What this shows Allegro MicroSystems, LLC (MAR) averages 0.0 TCR (0% of the Semiconductor devices manufacturing BLS benchmark).

Allegro MicroSystems, LLC (MAR) TCR series: 2018=0 · 2019=0 · 2020=0 · 2021=0 · BLS 3.3

Where Allegro MicroSystems, LLC (MAR) falls in its industry

437 Semiconductor devices manufact establishments

Safer than 100% of graded establishments in this industry, whose median TCR is 0.9.

Grade C

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #0 safest of 31 Semiconductor devices manufact employers in Massachusetts.

Allegro MicroSystems, LLC (MAR) (180 employees, TCR 0.0) among 29 same-industry peers, split at the industry median of 216 employees and a TCR of 0.9

Allegro MicroSystems, LLC (MAR) has fewer employees than the Semiconductor devices manufacturing median and a lower 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
2021	0.0	0.0	0	0	0
2020	0.0	0.0	0	0	0
2019	0.0	0.0	0	0	0
2018	0.0	0.0	0	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

334413 · MA · Marlborough

437 Semiconductor devices manufacturing employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 121 employers in Marlborough, MA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	LTD Material LLC	AUSTIN, TX	0.0 TCR
NAICS-TCR	North Reading Corporate Office	NORTH READING, MA	0.0 TCR
NAICS-TCR	Remote Sites	VARIES, CO	0.0 TCR
NAICS-TCR	First Solar Tempe Office	TEMPE, AZ	0.1 TCR
STATE-SIZE	Rich Products Salem	SALEM	180 FTE
STATE-SIZE	Bete Fog Nozzle, Inc.	GREENFIELD	180 FTE
STATE-SIZE	MANHEIM NEW ENGLAND	NORTH DIGHTON	180 FTE
STATE-SIZE	Sirtex Medical Inc.	WOBURN	180 FTE
CITY-NEAR	Raytheon - Marlborough	Marlborough	2,332 FTE
CITY-NEAR	Raytheon_Marlborough_MA	Marlborough	2,054 FTE
CITY-NEAR	Field	Marlborough	1,438 FTE
CITY-NEAR	Hologic : Marlborough Campus	Marlborough	700 FTE
NAT-TCR	Atlanta - Phipps	Atlanta, GA	0.0 TCR
NAT-TCR	Meijer 208	Lincoln Park, MI	0.0 TCR
NAT-TCR	Binghamton	Endwell, NY	0.0 TCR
NAT-TCR	Detroit	Taylor, MI	0.0 TCR
NAT-SIZE	Hanover	Mechanicsville, VA	180 FTE
NAT-SIZE	Gilman	Wheeling, IL	180 FTE
NAT-SIZE	SSA Orangewood Children and Family Center	Orange, CA	180 FTE
NAT-SIZE	WFLA Building	Tampa, FL	180 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: 2021, 2020, 2019, 2018. 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.