Curtain wall, glass, installation · Massachusetts

JK Glass Company, Inc.

Boston, MA · ~99 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

JK Glass Company, Inc. runs at 178% of its industry's injury rate - more dangerous than the typical Curtain wall, glass, installation workplace, earning a grade D.

JK Glass Company, Inc.: 5.0 TCR = 178% of Curtain wall, glass, installation BLS 2.8 · 2y Form 300A (see methodology below)

JK Glass Company, Inc. safety composite

JK Glass Company, Inc. scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 34%), 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

41/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 4.99 per 100 workers

Safer than 41% of industry peers

DART rate
F 3.41 per 100 workers

Safer than 34% 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

−3.2

2016→2023

JK Glass Company, Inc. injury rate improved

JK Glass Company, Inc.'s TCR fell 3.2 from 6.6 in 2016 to 3.4 in 2023. Peak filing year was 2016 at 6.6 TCR. In 2023, DART was 0.68× this establishment's average TCR (severity share of cases).

2016=6.6 · 2023=3.4

OSHA ITA Form 300A scorecard

Establishment book 238150 · Boston, MA ABOVE-IND · SMALL

Grade D · TCR 5.0 · 178% of ind

  • DART 3.4 DART
  • RANK #7/10
  • PHOTO SG METAL & GLASS
  • BOOK 2y book
  • INJ 8 inj
  • SIZE ~99 FTE

Nearest TCR peer: SG METAL & GLASS (0.0 TCR gap)

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

JK Glass Company, Inc. in the TCR neighbourhood

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

TCR

What this shows JK Glass Company, Inc. averages 5.0 TCR (178% of the Curtain wall, glass, installation BLS benchmark).

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

JK Glass Company, Inc. TCR series: 2016=6.6 · 2023=3.4 · BLS 2.8

Where JK Glass Company, Inc. falls in its industry

531 Curtain wall, glass, installat establishments

Safer than 41% of graded establishments in this industry, whose median TCR is 4.3.

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #7 safest of 10 Curtain wall, glass, installat employers in Massachusetts.

JK Glass Company, Inc. (99 employees, TCR 5.0) among 29 same-industry peers, split at the industry median of 43 employees and a TCR of 4.3 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 050100150200 05101520 Average employees Total Case Rate JK Glass Company, Inc.
JK Glass Company, Inc. (99 employees, TCR 5.0) among 29 same-industry peers, split at the industry median of 43 employees and a TCR of 4.3

JK Glass Company, Inc. has more employees than the Curtain wall, glass, installation median and a higher injury rate than the industry's median TCR of 4.3. 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
2023 3.4 3.4 4 0 0
2016 6.6 0.0 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238150 · MA · Boston

531 Curtain wall, glass, installation employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 577 employers in Boston, 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 SG METAL & GLASS 5.0 TCR
NAICS-TCR Glassworks Plus Inc 5.0 TCR
NAICS-TCR Hellenbrand Glass LLC 5.0 TCR
NAICS-TCR River City Glass 5.0 TCR
STATE-SIZE Jushi MA, Inc 99 FTE
STATE-SIZE Erland Construction, Inc. 99 FTE
STATE-SIZE Adtech Systems LLC 99 FTE
STATE-SIZE Universal Electric Company INc 99 FTE
CITY-NEAR Massachusetts General Hospital 26,855 FTE
CITY-NEAR Brigham and Women's Hospital 19,183 FTE
CITY-NEAR Brigham and Womens Hospital 19,004 FTE
CITY-NEAR Brigham & Women's Hospital 18,260 FTE
NAT-TCR Olson Carriers Inc 5.0 TCR
NAT-TCR Earle M Jorgensen Co 5.0 TCR
NAT-TCR Republic Number One 5.0 TCR
NAT-TCR Kitchen No. 324 5.0 TCR
NAT-SIZE Hubble Homes LLC 99 FTE
NAT-SIZE Public Works Transportation Engineering Design Division 99 FTE
NAT-SIZE Sage International DBA Jayco Manufacturing 99 FTE
NAT-SIZE Kingsburg Yard 99 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: 2023, 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.