Manufacture of search detection navigation guidance aeronautical and nautical system equipment · Connecticut

Atlantic Inertial Systems Inc (Cheshire CT)

Cheshire, CT · ~358 workers · 2 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.3
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Atlantic Inertial Systems Inc (Cheshire CT) runs at 9% of its industry's injury rate - far safer than the typical Manufacture of search detection navigation guidance aeronautical and nautical system equipment workplace, earning a grade A.

Atlantic Inertial Systems Inc (Cheshire CT): 0.3 TCR = 9% of Manufacture of search detection navigation guidance aeronautical and nautical system equipment BLS 3.3 · 2y Form 300A (see methodology below)

Atlantic Inertial Systems Inc (Cheshire CT) safety composite

Atlantic Inertial Systems Inc (Cheshire CT) scores strongest on total case rate (tcr) (safer than 80% 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).

C

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 0.29 per 100 workers

Safer than 80% of industry peers

DART rate
D 0.3 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%).

Atlantic Inertial Systems Inc (Cheshire CT) held a steady TCR band

Atlantic Inertial Systems Inc (Cheshire CT)'s TCR held near 0.0 from 0.3 in 2022 to 0.3 in 2023. In 2023, DART was 1.03× this establishment's average TCR (severity share of cases).

2022=0.3 · 2023=0.3

OSHA ITA Form 300A scorecard

Establishment book 334511 · Cheshire, CT AT/BELOW-IND · MID

Grade A · TCR 0.3 · 9% of ind

  • DART 0.3 DART
  • RANK #1/4
  • PHOTO L3Harris
  • BOOK 2y book
  • INJ 2 inj
  • SIZE ~358 FTE

Nearest TCR peer: L3Harris (0.0 TCR gap)

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

Atlantic Inertial Systems Inc (Cheshire CT) in the TCR neighbourhood

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

TCR

What this shows Atlantic Inertial Systems Inc (Cheshire CT) averages 0.3 TCR (9% of the Manufacture of search detection navigation guidance aeronautical and nautical system equipment BLS benchmark).

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

Atlantic Inertial Systems Inc (Cheshire CT) TCR series: 2022=0.3 · 2023=0.3 · BLS 3.3

Where Atlantic Inertial Systems Inc (Cheshire CT) falls in its industry

388 Manufacture of search detectio establishments

Safer than 80% of graded establishments in this industry, whose median TCR is 0.7.

More dangerous than peersSafer than peers

Narrower to Connecticut alone (the establishments it most directly competes with for workers and contracts): ranked #1 safest of 4 Manufacture of search detectio employers in Connecticut.

Atlantic Inertial Systems Inc (Cheshire CT) (358 employees, TCR 0.3) among 29 same-industry peers, split at the industry median of 207 employees and a TCR of 0.7 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 05001,0001,5002,000 0246810 Average employees Total Case Rate Atlantic Inertial Systems Inc (Cheshire CT)
Atlantic Inertial Systems Inc (Cheshire CT) (358 employees, TCR 0.3) among 29 same-industry peers, split at the industry median of 207 employees and a TCR of 0.7

Atlantic Inertial Systems Inc (Cheshire CT) has more employees than the Manufacture of search detection navigati median and a lower injury rate than the industry's median TCR of 0.7. 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 0.3 0.3 1 0 0
2022 0.3 0.3 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

334511 · CT · Cheshire

388 Manufacture of search detection navigation guidance aeronautical and nautical system equipment employers nationwide with a credible TCR · 7,008 rated employers in Connecticut with headcount on file · 68 employers in Cheshire, 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 L3Harris 0.3 TCR
NAICS-TCR Defense and Systems Grand Rapids MI 0.3 TCR
NAICS-TCR HoneywellWA05 0.3 TCR
NAICS-TCR HMAPF02 0.3 TCR
STATE-SIZE Global Steering Systems 359 FTE
STATE-SIZE 2022 357 FTE
STATE-SIZE 1891 359 FTE
STATE-SIZE MRDNCT04 - AT&T Services, Inc. 359 FTE
CITY-NEAR Bozzuto's Inc. 1,617 FTE
CITY-NEAR 88500 1,049 FTE
CITY-NEAR Cheshire Corectional Institution 440 FTE
CITY-NEAR Cheshire 385 FTE
NAT-TCR Rohr Aero Services LLC (Foley AL) 0.3 TCR
NAT-TCR GA - Google Skyview 0.3 TCR
NAT-TCR Unit #0786 0.3 TCR
NAT-TCR Swansea RHCC 0.3 TCR
NAT-SIZE Virtua - 301 Lippincott Drive 358 FTE
NAT-SIZE PCC Airfoils LLC - Mentor Plant 358 FTE
NAT-SIZE Bunk'd Production 358 FTE
NAT-SIZE Toyota Boshoku Kentucky - Bardstown 358 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, 2022. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.