Battery Manufacturing · Massachusetts

Ambri LLC

Marlborough, MA · ~111 workers · 2 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.9
Avg TCR
3.3
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

Ambri LLC runs at 28% of its industry's injury rate - far safer than the typical Battery Manufacturing workplace, earning a grade A.

Ambri LLC: 0.9 TCR = 28% of Battery Manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

Ambri LLC safety composite

Ambri LLC scores strongest on dart rate (safer than 89% 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

78/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 0.92 per 100 workers

Safer than 86% of industry peers

DART rate
B 0 per 100 workers

Safer than 89% 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

−1.8

2023→2024

Ambri LLC injury rate improved

Ambri LLC's TCR fell 1.8 from 1.8 in 2023 to 0.0 in 2024. Peak filing year was 2023 at 1.8 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2023=1.8 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 335910 · Marlborough, MA AT/BELOW-IND · MID

Grade A · TCR 0.9 · 28% of ind

  • DART 0.0 DART
  • RANK P86
  • PHOTO Group14 Technology
  • BOOK 2y book
  • INJ 3 inj
  • SIZE ~111 FTE

Nearest TCR peer: Group14 Technology (0.1 TCR gap)

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

Ambri LLC in the TCR neighbourhood

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

TCR

What this shows Ambri LLC averages 0.9 TCR (28% of the Battery Manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-09-26

Ambri LLC TCR series: 2023=1.8 · 2024=0 · BLS 3.3

Where Ambri LLC falls in its industry

14 Battery Manufacturing establishments

Safer than 86% of graded establishments in this industry, whose median TCR is 2.1.

More dangerous than peersSafer than peers

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 0.0 0.0 0 0 0
2023 1.8 0.6 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

335910 · MA · Marlborough

14 Battery 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 Metric
NAICS-TCR Group14 Technology 1.0 TCR
NAICS-TCR SKBA 1.1 TCR
NAICS-TCR 9113-020127-ASSOCIATES 1.2 TCR
NAICS-TCR Ascend Elements - Headquarters 1.2 TCR
STATE-SIZE 994 Baltimore DC 111 FTE
STATE-SIZE B-X Newton LLC 111 FTE
STATE-SIZE Elaine Center at Hadley 111 FTE
STATE-SIZE Roche Bros. Supermarkets - Needham 111 FTE
CITY-NEAR Raytheon - Marlborough 2,332 FTE
CITY-NEAR Raytheon_Marlborough_MA 2,054 FTE
CITY-NEAR Field 1,438 FTE
CITY-NEAR Hologic : Marlborough Campus 700 FTE
NAT-TCR STR0321 0.9 TCR
NAT-TCR Pinnacle Electric Inc. 0.9 TCR
NAT-TCR South Milwaukee 10140 0.9 TCR
NAT-TCR Control Southern Inc. 0.9 TCR
NAT-SIZE Insteel Wire Products NCW 111 FTE
NAT-SIZE Casa De Manana 111 FTE
NAT-SIZE MRB Contractors, LLC 111 FTE
NAT-SIZE Sheraton Flowood Hotel and Conference Center 111 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.