Printers, computer, manufacturing · California

Addmaster Corporation

Monrovia, CA · ~33 workers · 8 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
9.3
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Addmaster Corporation runs at 282% of its industry's injury rate - far more dangerous than the typical Printers, computer, manufacturing workplace, earning a grade F.

Addmaster Corporation: 9.3 TCR = 282% of Printers, computer, manufacturing BLS 3.3 · 8y Form 300A (see methodology below)

Addmaster Corporation safety composite

Addmaster Corporation scores strongest on dart rate (safer than 74% of same-industry peers) and weakest on total case rate (tcr) (safer than 0%), 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).

D

39/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 9.29 per 100 workers

Safer than 0% of industry peers

DART rate
C 0 per 100 workers

Safer than 74% 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%).

Rising injury rate

Addmaster Corporation: 17.1 → 61.5 TCR

Peak year 2023 @ 61.5 TCR · DART/TCR 6.62× in 2024

Addmaster Corporation's TCR rose 44.4 from 17.1 in 2017 to 61.5 in 2024. Peak filing year was 2023 at 61.5 TCR. In 2024, DART was 6.62× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 334118 · Monrovia, CA ABOVE-IND · SMALL

Grade F · TCR 9.3 · 282% of ind

  • DART 61.5 DART
  • RANK #10/10
  • PHOTO Keytronic SW
  • BOOK 8y book
  • INJ 22 inj
  • SIZE ~33 FTE

Nearest TCR peer: Keytronic SW (2.6 TCR gap)

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

Addmaster Corporation in the TCR neighbourhood

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

TCR

What this shows Addmaster Corporation averages 9.3 TCR (282% of the Printers, computer, manufacturing BLS benchmark).

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

Addmaster Corporation TCR series: 2017=17.1 · 2018=11.4 · 2019=10 · 2020=17.1 · 2021=0 · 2022=0 · 2023=61.5 · 2024=61.5 · BLS 3.3

Where Addmaster Corporation falls in its industry

48 Printers, computer, manufactur establishments

Safer than 0% of graded establishments in this industry, whose median TCR is 1.1.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #10 safest of 10 Printers, computer, manufactur employers in California.

Addmaster Corporation (33 employees, TCR 9.3) among 29 same-industry peers, split at the industry median of 95 employees and a TCR of 1.1 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 0200400600800 0246810 Average employees Total Case Rate Addmaster Corporation
Addmaster Corporation (33 employees, TCR 9.3) among 29 same-industry peers, split at the industry median of 95 employees and a TCR of 1.1

Addmaster Corporation has fewer employees than the Printers, computer, manufacturing median and a higher injury rate than the industry's median TCR of 1.1. 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 61.5 61.5 2 0 0
2023 61.5 61.5 2 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0
2020 17.1 17.1 6 0 0
2019 10.0 10.0 3 2 0
2018 11.4 11.4 3 1 0
2017 17.1 17.1 6 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

334118 · CA · Monrovia

48 Printers, computer, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 68 employers in Monrovia, CA · 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 Keytronic SW 6.7 TCR
NAICS-TCR New Hartford 6.0 TCR
NAICS-TCR Nautilus Hyosung America - Hyosung Technology Center 5.6 TCR
NAICS-TCR APG Cash Drawer 4.9 TCR
STATE-SIZE Tutti Frutti Farms 33 FTE
STATE-SIZE EL CENTRO 33 FTE
STATE-SIZE BULLSEYE FARMS 18 33 FTE
STATE-SIZE River Vista Farms LLC 33 FTE
CITY-NEAR California Department of Transportation Facility 593 2,621 FTE
CITY-NEAR Monrovia 02 Oral Care 695 FTE
CITY-NEAR WorleyParsons Group Inc - Monrovia 530 FTE
CITY-NEAR Original Tommy's 500 FTE
NAT-TCR King Nut Companies 9.3 TCR
NAT-TCR TownePlace Suites West Des Moines 9.3 TCR
NAT-TCR Heinrich Envelope - 0012 9.3 TCR
NAT-TCR Prairie Elementary 9.3 TCR
NAT-SIZE Aequs Aero Machine 33 FTE
NAT-SIZE NRG Will County Generating Station 33 FTE
NAT-SIZE Hunsaker Exteriors 33 FTE
NAT-SIZE Martin & Sons Excavating, Inc. 33 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, 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.