Virus vaccines manufacturing · Iowa

Merck Ames, IA Facility

Ames, IA · ~63 workers · 3 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.6
Avg TCR
3.3
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

Merck Ames, IA Facility runs at 48% of its industry's injury rate - far safer than the typical Virus vaccines manufacturing workplace, earning a grade A.

Merck Ames, IA Facility: 1.6 TCR = 48% of Virus vaccines manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Merck Ames, IA Facility safety composite

Merck Ames, IA Facility scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 21%), 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).

F

34/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 1.57 per 100 workers

Safer than 36% of industry peers

DART rate
F 1.67 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

−1.4

2022→2024

Merck Ames, IA Facility injury rate improved

Merck Ames, IA Facility's TCR fell 1.4 from 3.0 in 2022 to 1.7 in 2024. Peak filing year was 2022 at 3.0 TCR. In 2024, DART was 1.06× this establishment's average TCR (severity share of cases).

2022=3.0 · 2023=0.0 · 2024=1.7

OSHA ITA Form 300A scorecard

Establishment book 325414 · Ames, IA AT/BELOW-IND · SMALL

Grade A · TCR 1.6 · 48% of ind

  • DART 1.7 DART
  • RANK #5/11
  • PHOTO GRIFOLS THERAPEUTICS…
  • BOOK 3y book
  • INJ 3 inj
  • SIZE ~63 FTE

Nearest TCR peer: GRIFOLS THERAPEUTICS LLC (CLAYTON) (0.0 TCR gap)

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

Merck Ames, IA Facility in the TCR neighbourhood

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

TCR

What this shows Merck Ames, IA Facility averages 1.6 TCR (48% of the Virus vaccines manufacturing BLS benchmark).

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

Merck Ames, IA Facility TCR series: 2022=3 · 2023=0 · 2024=1.7 · BLS 3.3

Where Merck Ames, IA Facility falls in its industry

234 Virus vaccines manufacturing establishments

Safer than 36% of graded establishments in this industry, whose median TCR is 1.2.

More dangerous than peersSafer than peers

Narrower to Iowa alone (the establishments it most directly competes with for workers and contracts): ranked #5 safest of 11 Virus vaccines manufacturing employers in Iowa.

Merck Ames, IA Facility (63 employees, TCR 1.6) 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 Merck Ames, IA Facility
Merck Ames, IA Facility (63 employees, TCR 1.6) among 29 same-industry peers, split at the industry median of 198 employees and a TCR of 1.2

Merck Ames, IA Facility has fewer employees than the Virus vaccines manufacturing median and a higher 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 1.7 1.7 1 0 0
2023 0.0 0.0 0 0 0
2022 3.0 3.0 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

325414 · IA · Ames

234 Virus vaccines manufacturing employers nationwide with a credible TCR · 7,192 rated employers in Iowa with headcount on file · 170 employers in Ames, IA · 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 GRIFOLS THERAPEUTICS LLC (CLAYTON) 1.6 TCR
NAICS-TCR Pilot Plant 1.6 TCR
NAICS-TCR Emergent Biodefense Operations Lansing 1.6 TCR
NAICS-TCR Brammer Bio Florida 1.6 TCR
STATE-SIZE Cherokee-US-Production 63 FTE
STATE-SIZE Iowa Lakes Electric Cooperative 63 FTE
STATE-SIZE D.R. Horton, Inc. - Iowa, LLC 63 FTE
STATE-SIZE Keen Project Solutions 63 FTE
CITY-NEAR ISU - University Wide 13,316 FTE
CITY-NEAR ISU - On Campus 12,527 FTE
CITY-NEAR Mary Greeley Medical Center- Main Hospital 1,415 FTE
CITY-NEAR Mary Greeley Medical Center 1,277 FTE
NAT-TCR Woodlands Store #2301 1.6 TCR
NAT-TCR Alta Enterprises LLC- Romulus 1.6 TCR
NAT-TCR Towlift Columbus 1.6 TCR
NAT-TCR University Park 1.6 TCR
NAT-SIZE ACE- Winslow Operations 63 FTE
NAT-SIZE ELP 63 FTE
NAT-SIZE Nova 63 FTE
NAT-SIZE Rol-Tec, Inc. 63 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. 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.