Optical Instrument and Lens Manufacturing · Connecticut

2967-CT135

Middlefield, CT · ~312 workers · 5 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.3
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

2967-CT135 runs at 39% of its industry's injury rate - far safer than the typical Optical Instrument and Lens Manufacturing workplace, earning a grade A.

2967-CT135: 1.3 TCR = 39% of Optical Instrument and Lens Manufacturing BLS 3.3 · 5y Form 300A (see methodology below)

2967-CT135 safety composite

2967-CT135 scores strongest on total case rate (tcr) (safer than 64% of same-industry peers) and weakest on dart rate (safer than 36%), 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

51/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.29 per 100 workers

Safer than 64% of industry peers

DART rate
D 1.03 per 100 workers

Safer than 36% 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

−0.4

2017→2022

2967-CT135 injury rate improved

2967-CT135's TCR fell 0.4 from 1.7 in 2017 to 1.4 in 2022. Peak filing year was 2019 at 1.9 TCR. In 2022, DART was 0.8× this establishment's average TCR (severity share of cases).

2017=1.7 · 2019=1.9 · 2020=0.7 · 2021=0.7 · 2022=1.4

OSHA ITA Form 300A scorecard

Establishment book 333314 · Middlefield, CT AT/BELOW-IND · MID

Grade A · TCR 1.3 · 39% of ind

  • DART 1.0 DART
  • RANK #5/5
  • PHOTO L3 Technologies Bras…
  • BOOK 5y book
  • INJ 19 inj
  • SIZE ~312 FTE

Nearest TCR peer: L3 Technologies Brashear (0.0 TCR gap)

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

2967-CT135 in the TCR neighbourhood

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

TCR

What this shows 2967-CT135 averages 1.3 TCR (39% of the Optical Instrument and Lens Manufacturing BLS benchmark).

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

2967-CT135 TCR series: 2017=1.7 · 2019=1.9 · 2020=0.7 · 2021=0.7 · 2022=1.4 · BLS 3.3

Where 2967-CT135 falls in its industry

145 Optical Instrument and Lens Ma establishments

Safer than 64% of graded establishments in this industry, whose median TCR is 1.8.

More dangerous than peersSafer than peers

Narrower to Connecticut alone (the establishments it most directly competes with for workers and contracts): ranked #5 safest of 5 Optical Instrument and Lens Ma employers in Connecticut.

2967-CT135 (312 employees, TCR 1.3) among 29 same-industry peers, split at the industry median of 80 employees and a TCR of 1.8 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 02004006008001,000 051015 Average employees Total Case Rate 2967-CT135
2967-CT135 (312 employees, TCR 1.3) among 29 same-industry peers, split at the industry median of 80 employees and a TCR of 1.8

2967-CT135 has more employees than the Optical Instrument and Lens Manufacturin median and a lower injury rate than the industry's median TCR of 1.8. 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
2022 1.4 1.0 4 0 0
2021 0.7 0.4 2 0 0
2020 0.7 0.4 2 0 0
2019 1.9 0.3 6 0 0
2017 1.7 0.7 5 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

333314 · CT · Middlefield

145 Optical Instrument and Lens Manufacturing employers nationwide with a credible TCR · 7,008 rated employers in Connecticut with headcount on file · 6 employers in Middlefield, CT · 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 L3 Technologies Brashear 1.3 TCR
NAICS-TCR Thorlabs Inc. NJ 1.3 TCR
NAICS-TCR KARL STORZ Endovision, Inc. 1.3 TCR
NAICS-TCR Materion - Westford - Tyngsboro 1.3 TCR
STATE-SIZE Leonardo DRS Naval Power Systems 313 FTE
STATE-SIZE Fairfield Healthcare Services 313 FTE
STATE-SIZE Abbott Terrace Health Center Inc. 311 FTE
STATE-SIZE Duncaster 313 FTE
CITY-NEAR CT135 ZYGO CORPORATION 371 FTE
CITY-NEAR Powder Ridge Mountain Park & Resort 251 FTE
CITY-NEAR Acranom Masonry Enterprises 65 FTE
CITY-NEAR Town Of Middlefield Ct 57 FTE
NAT-TCR US - Branch Network : 0776 1.3 TCR
NAT-TCR US - Branch Network : 0804 1.3 TCR
NAT-TCR R.A Jones-Covington, KY 1.3 TCR
NAT-TCR Designed Roofing Systems, Inc. 1.3 TCR
NAT-SIZE Life Sciences : Beckman Coulter - Indianapolis (RD) 312 FTE
NAT-SIZE Manheim Statesville 312 FTE
NAT-SIZE Wayne Memorial Community Health Centers 312 FTE
NAT-SIZE Knoll 312 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: 2022, 2021, 2020, 2019, 2017. 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.