Curtain wall, glass, installation · Massachusetts

Middlesex Glass Company Inc.

Tewksbury, MA · ~111 workers · 2 years of OSHA Injury Tracking Application data.

B
Good Safety Record
2.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Middlesex Glass Company Inc. runs at 73% of its industry's injury rate - safer than the typical Curtain wall, glass, installation workplace, earning a grade B.

Middlesex Glass Company Inc.: 2.0 TCR = 73% of Curtain wall, glass, installation BLS 2.8 · 2y Form 300A (see methodology below)

Middlesex Glass Company Inc. safety composite

Middlesex Glass Company Inc. scores strongest on total case rate (tcr) (safer than 80% of same-industry peers) and weakest on dart rate (safer than 47%), 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).

C

61/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 2.04 per 100 workers

Safer than 80% of industry peers

DART rate
D 2.1 per 100 workers

Safer than 47% 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%).

Rising injury rate

Middlesex Glass Company Inc.: 0.9 → 3.1 TCR

Peak year 2024 @ 3.1 TCR · DART/TCR 1.03× in 2024

Middlesex Glass Company Inc.'s TCR rose 2.2 from 0.9 in 2023 to 3.1 in 2024. In 2024, DART was 1.03× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238150 · Tewksbury, MA AT/BELOW-IND · MID

Grade B · TCR 2.0 · 73% of ind

  • DART 2.1 DART
  • RANK #1/10
  • PHOTO Arizona Glass Specia…
  • BOOK 2y book
  • INJ 4 inj
  • SIZE ~111 FTE

Nearest TCR peer: Arizona Glass Specialists (0.0 TCR gap)

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

Middlesex Glass Company Inc. in the TCR neighbourhood

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

TCR

What this shows Middlesex Glass Company Inc. averages 2.0 TCR (73% 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

Middlesex Glass Company Inc. TCR series: 2023=0.9 · 2024=3.1 · BLS 2.8

Where Middlesex Glass Company Inc. falls in its industry

531 Curtain wall, glass, installat establishments

Safer than 80% 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 #1 safest of 10 Curtain wall, glass, installat employers in Massachusetts.

Middlesex Glass Company Inc. (111 employees, TCR 2.0) 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 Middlesex Glass Company Inc.
Middlesex Glass Company Inc. (111 employees, TCR 2.0) among 29 same-industry peers, split at the industry median of 43 employees and a TCR of 4.3

Middlesex Glass Company Inc. has more employees than the Curtain wall, glass, installation median and a lower 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
2024 3.1 2.1 3 0 0
2023 0.9 0.0 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238150 · MA · Tewksbury

531 Curtain wall, glass, installation employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 64 employers in Tewksbury, 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 Arizona Glass Specialists 2.0 TCR
NAICS-TCR Glass and Metals Inc 2.0 TCR
NAICS-TCR Giroux Glass, Inc. 2.0 TCR
NAICS-TCR JAMCo, Inc. 2.0 TCR
STATE-SIZE General Contractor 111 FTE
STATE-SIZE G.O. Construction Services, LLC 111 FTE
STATE-SIZE Lunenburg 111 FTE
STATE-SIZE General Mechanical Contractors, Inc 111 FTE
CITY-NEAR Raytheon_Tewksbury_MA 2,348 FTE
CITY-NEAR Market Basket #990 724 FTE
CITY-NEAR Market Basket #08 380 FTE
CITY-NEAR Thermo Fisher PAI 379 FTE
NAT-TCR JOINN Biologics, US 2.0 TCR
NAT-TCR Oakley Transport 2.0 TCR
NAT-TCR Conard High School 2.0 TCR
NAT-TCR STR0484 2.0 TCR
NAT-SIZE Wisconic LLC 111 FTE
NAT-SIZE Ascentron 111 FTE
NAT-SIZE KitPackers ResinLab 111 FTE
NAT-SIZE CEI Michigan, LLC 111 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.