Insulating glass, sealed units, made in glass making plants · Colorado

Manko Window Systems

Aurora, CO · ~88 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
12.9
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Manko Window Systems runs at 392% of its industry's injury rate - far more dangerous than the typical Insulating glass, sealed units, made in glass making plants workplace, earning a grade F.

Manko Window Systems: 12.9 TCR = 392% of Insulating glass, sealed units, made in glass making plants BLS 3.3 · 3y Form 300A (see methodology below)

Manko Window Systems safety composite

Manko Window Systems scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 5%), 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

17/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 12.95 per 100 workers

Safer than 5% of industry peers

DART rate
F 8.62 per 100 workers

Safer than 6% 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%).

TCR Δ

−0.7

2016→2018

Manko Window Systems injury rate improved

Manko Window Systems's TCR fell 0.7 from 11.5 in 2016 to 10.8 in 2018. Peak filing year was 2017 at 16.6 TCR. In 2018, DART was 0.67× this establishment's average TCR (severity share of cases).

2016=11.5 · 2017=16.6 · 2018=10.8

OSHA ITA Form 300A scorecard

Establishment book 327211 · Aurora, CO ABOVE-IND · SMALL

Grade F · TCR 12.9 · 392% of ind

  • DART 8.6 DART
  • RANK P5
  • PHOTO GGI Glass Distributo…
  • BOOK 3y book
  • INJ 36 inj
  • SIZE ~88 FTE

Nearest TCR peer: GGI Glass Distributors Corp dba General Glass International (0.1 TCR gap)

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

Manko Window Systems in the TCR neighbourhood

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

TCR

What this shows Manko Window Systems averages 12.9 TCR (392% of the Insulating glass, sealed units, made in glass making plants BLS benchmark).

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

Manko Window Systems TCR series: 2016=11.5 · 2017=16.6 · 2018=10.8 · BLS 3.3

Where Manko Window Systems falls in its industry

105 Insulating glass, sealed units establishments

Safer than 5% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers
Manko Window Systems (88 employees, TCR 12.9) among 29 same-industry peers, split at the industry median of 180 employees and a TCR of 3.3 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 0100200300400500 0102030 Average employees Total Case Rate Manko Window Systems
Manko Window Systems (88 employees, TCR 12.9) among 29 same-industry peers, split at the industry median of 180 employees and a TCR of 3.3

Manko Window Systems has fewer employees than the Insulating glass, sealed units, made in median and a higher injury rate than the industry's median TCR of 3.3. 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
2018 10.8 8.6 10 0 0
2017 16.6 16.6 15 0 0
2016 11.5 11.5 11 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

327211 · CO · Aurora

105 Insulating glass, sealed units, made in glass making plants employers nationwide with a credible TCR · 9,007 rated employers in Colorado with headcount on file · 497 employers in Aurora, CO · 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 GGI Glass Distributors Corp dba General Glass International 13.0 TCR
NAICS-TCR PRL Glass Systems, Inc. 13.5 TCR
NAICS-TCR TECHNI-GLASS INC 12.2 TCR
NAICS-TCR BULLSEYE GLASS COMPANY 11.8 TCR
STATE-SIZE Arvada North Metro HQ-057 88 FTE
STATE-SIZE Poudre Valley REA, Inc. 88 FTE
STATE-SIZE AGL Construction Company 88 FTE
STATE-SIZE J&C Foundations, Inc. 88 FTE
CITY-NEAR Children's Hospital Colorado 6,663 FTE
CITY-NEAR Raytheon_Aurora_CO 2,237 FTE
CITY-NEAR Primoris Renewable Energy 1,695 FTE
CITY-NEAR Amazon.com Services LLC - DEN5 1,601 FTE
NAT-TCR SJC Home Health - Hinesville 12.9 TCR
NAT-TCR Yard 12.9 TCR
NAT-TCR 6962-Swy 0029 2047 12.9 TCR
NAT-TCR 0511 - Hattiesburg, MS 12.9 TCR
NAT-SIZE Excel Electric, Inc. 88 FTE
NAT-SIZE Craig HomeCare-Grand Island 88 FTE
NAT-SIZE Silver Stream Health and Rehabilitation Center 88 FTE
NAT-SIZE LENTEX 88 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: 2018, 2017, 2016. 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.