Rockets, ammunition (except guided missiles, pyrotechnic), manufacturing · Arizona

Nammo Defense Systems

Mesa, AZ · ~309 workers · 2 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.1
Avg TCR
3.3
Industry avg
1
Fatality
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The verdict

Nammo Defense Systems runs at 94% of its industry's injury rate - about level with the typical Rockets, ammunition (except guided missiles, pyrotechnic), manufacturing workplace, earning a grade C.

Nammo Defense Systems: 3.1 TCR = 94% of Rockets, ammunition (except guided missiles, pyrotechnic), manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

Nammo Defense Systems safety composite

Nammo Defense Systems scores strongest on dart rate (safer than 38% of same-industry peers) and weakest on fatalities (safer than 3%), 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

24/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 3.09 per 100 workers

Safer than 25% of industry peers

DART rate
D 1.26 per 100 workers

Safer than 38% of industry peers

Fatalities
F 1

Safer than 3% 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

−2.4

2023→2024

Nammo Defense Systems injury rate improved

Nammo Defense Systems's TCR fell 2.4 from 4.3 in 2023 to 1.9 in 2024. Peak filing year was 2023 at 4.3 TCR. In 2024, DART was 0.41× this establishment's average TCR (severity share of cases).

2023=4.3 · 2024=1.9

OSHA ITA Form 300A scorecard

Establishment book 332993 · Mesa, AZ AT/BELOW-IND · MID

Grade C · TCR 3.1 · 94% of ind

  • DART 1.3 DART
  • RANK P25
  • PHOTO Nammo Talley Inc.
  • BOOK 2y book
  • INJ 10 inj
  • SIZE ~309 FTE

Nearest TCR peer: Nammo Talley Inc. (0.2 TCR gap)

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

Nammo Defense Systems in the TCR neighbourhood

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

TCR

What this shows Nammo Defense Systems averages 3.1 TCR (94% of the Rockets, ammunition (except guided missiles, pyrotechnic), manufacturing BLS benchmark).

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

Nammo Defense Systems TCR series: 2023=4.3 · 2024=1.9 · BLS 3.3

Where Nammo Defense Systems falls in its industry

36 Rockets, ammunition (except gu establishments

Safer than 25% of graded establishments in this industry, whose median TCR is 1.7.

More dangerous than peersSafer than peers
Nammo Defense Systems (309 employees, TCR 3.1) among 27 same-industry peers, split at the industry median of 188 employees and a TCR of 1.7 2×2 strategic matrix plotting 28 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 0200400600800 0246810 Average employees Total Case Rate Nammo Defense Systems
Nammo Defense Systems (309 employees, TCR 3.1) among 27 same-industry peers, split at the industry median of 188 employees and a TCR of 1.7

Nammo Defense Systems has more employees than the Rockets, ammunition (except guided missi median and a higher injury rate than the industry's median TCR of 1.7. 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 1.9 1.3 5 1 0
2023 4.3 1.3 5 5 1

OSHA ITA peer cross-reference

Establishment peer ledger

332993 · AZ · Mesa

36 Rockets, ammunition (except guided missiles, pyrotechnic), manufacturing employers nationwide with a credible TCR · 9,594 rated employers in Arizona with headcount on file · 565 employers in Mesa, AZ · 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 Nammo Talley Inc. 3.3 TCR
NAICS-TCR General Dynamics OTS Garland 2.7 TCR
NAICS-TCR Nammo Pocal Inc. Moscow 2.7 TCR
NAICS-TCR Nammo Pocal Inc. Scranton 3.5 TCR
STATE-SIZE Kitchell Contractors of Arizona 309 FTE
STATE-SIZE Home Office DriveTime 309 FTE
STATE-SIZE Purina 308 FTE
STATE-SIZE CERTEX USA 308 FTE
CITY-NEAR AZ001 4,193 FTE
CITY-NEAR AZAPW9668 AZA - RAMP PAX 3,181 FTE
CITY-NEAR 04-290370278-2 1,964 FTE
CITY-NEAR Police Department H210 1,651 FTE
NAT-TCR Argosy Casino Alton 3.1 TCR
NAT-TCR EMS - Highlands at River Road 3.1 TCR
NAT-TCR Washington Penn - PPD 3.1 TCR
NAT-TCR UHH/HI Coop Studies Unit(HCSU) 3.1 TCR
NAT-SIZE Flfmb - Baymeadows 309 FTE
NAT-SIZE Murray 309 FTE
NAT-SIZE 5089 Pittston Rdc 309 FTE
NAT-SIZE Pulaski Memorial Hospital 309 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.