Gene therapy preparations manufacturing · Massachusetts

Arranta Bio

Watertown, MA · ~128 workers · 5 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.6
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Arranta Bio runs at 18% of its industry's injury rate - far safer than the typical Gene therapy preparations manufacturing workplace, earning a grade A.

Arranta Bio: 0.6 TCR = 18% of Gene therapy preparations manufacturing BLS 3.3 · 5y Form 300A (see methodology below)

Arranta Bio safety composite

Arranta Bio scores strongest on dart rate (safer than 83% 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).

C

72/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 0.58 per 100 workers

Safer than 75% of industry peers

DART rate
B 0 per 100 workers

Safer than 83% 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%).

Arranta Bio held a steady TCR band

Arranta Bio's TCR held near 0.0 from 0.0 in 2020 to 0.0 in 2024. Peak filing year was 2021 at 1.7 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2020=0.0 · 2021=1.7 · 2022=0.5 · 2023=0.6 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 325414 · Watertown, MA AT/BELOW-IND · MID

Grade A · TCR 0.6 · 18% of ind

  • DART 0.0 DART
  • RANK #16/37
  • PHOTO Thermo Fisher Scient…
  • BOOK 5y book
  • INJ 4 inj
  • SIZE ~128 FTE

Nearest TCR peer: Thermo Fisher Scientific (0.0 TCR gap)

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Arranta Bio in the TCR neighbourhood

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

TCR

What this shows Arranta Bio averages 0.6 TCR (18% of the Gene therapy preparations manufacturing BLS benchmark).

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

Arranta Bio TCR series: 2020=0 · 2021=1.7 · 2022=0.5 · 2023=0.6 · 2024=0 · BLS 3.3

Where Arranta Bio falls in its industry

234 Gene therapy preparations manu establishments

Safer than 75% of graded establishments in this industry, whose median TCR is 1.2.

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #16 safest of 37 Gene therapy preparations manu employers in Massachusetts.

Arranta Bio (128 employees, TCR 0.6) among 29 same-industry peers, split at the industry median of 198 employees and a TCR of 1.2 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 05001,0001,5002,000 0246 Average employees Total Case Rate Arranta Bio
Arranta Bio (128 employees, TCR 0.6) among 29 same-industry peers, split at the industry median of 198 employees and a TCR of 1.2

Arranta Bio has fewer employees than the Gene therapy preparations manufacturing median and a lower injury rate than the industry's median TCR of 1.2. 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 0.0 0.0 0 0 0
2023 0.6 0.0 1 0 0
2022 0.5 0.5 1 0 0
2021 1.7 0.0 2 0 0
2020 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

325414 · MA · Watertown

234 Gene therapy preparations manufacturing employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 43 employers in Watertown, 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 Thermo Fisher Scientific 0.6 TCR
NAICS-TCR Shire: 55 Network Drive 0.6 TCR
NAICS-TCR Pfizer, Inc. 0.6 TCR
NAICS-TCR Sanofi Pasteur Field Sales Southeast Region 0.6 TCR
STATE-SIZE Collins Electric Company, Inc. 128 FTE
STATE-SIZE MA121 TMC 128 FTE
STATE-SIZE Backer Hotwatt, Inc. 128 FTE
STATE-SIZE D.B. Roberts, Inc.-Wilmington 128 FTE
CITY-NEAR J.C. Cannistraro LLC 773 FTE
CITY-NEAR WATERTOWN (MAWAT) 531 FTE
CITY-NEAR MAWAT - WATERTOWN 497 FTE
CITY-NEAR 1442 - Watertown 314 FTE
NAT-TCR Switchgear Solutions Inc 0.6 TCR
NAT-TCR Tri Pointe Homes San Diego 0.6 TCR
NAT-TCR Eagle Contracting 0.6 TCR
NAT-TCR Prasco 0.6 TCR
NAT-SIZE ALBANY 128 FTE
NAT-SIZE Egads LLC 128 FTE
NAT-SIZE Bway Memphis 128 FTE
NAT-SIZE CSA Construction Inc. 128 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, 2022, 2021, 2020. 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.