Naval ship building · Connecticut

General Dynamics Electric Boat

Groton, CT · ~12,075 workers · 6 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.5
Avg TCR
3.3
Industry avg
1
Fatality
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The verdict

General Dynamics Electric Boat runs at 105% of its industry's injury rate - about level with the typical Naval ship building workplace, earning a grade C.

General Dynamics Electric Boat: 3.5 TCR = 105% of Naval ship building BLS 3.3 · 6y Form 300A (see methodology below)

General Dynamics Electric Boat safety composite

General Dynamics Electric Boat scores strongest on total case rate (tcr) (safer than 58% of same-industry peers) and weakest on fatalities (safer than 3%), 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

36/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 3.48 per 100 workers

Safer than 58% of industry peers

DART rate
F 3.68 per 100 workers

Safer than 34% of industry peers

Fatalities
F 1

Safer than 3% 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

General Dynamics Electric Boat: 3.1 → 4.6 TCR

Peak year 2021 @ 4.6 TCR · DART/TCR 1.06× in 2021

General Dynamics Electric Boat's TCR rose 1.5 from 3.1 in 2016 to 4.6 in 2021. In 2021, DART was 1.06× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 336611 · Groton, CT ABOVE-IND · LARGE

Grade C · TCR 3.5 · 105% of ind

  • DART 3.7 DART
  • RANK #5/9
  • PHOTO Metro Machine Corp D…
  • BOOK 6y book
  • INJ 1,990 inj
  • SIZE ~12,075 FTE

Nearest TCR peer: Metro Machine Corp DBA General Dynamics NASSCO (0.0 TCR gap)

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

General Dynamics Electric Boat in the TCR neighbourhood

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

TCR

What this shows General Dynamics Electric Boat averages 3.5 TCR (105% of the Naval ship building BLS benchmark).

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

General Dynamics Electric Boat TCR series: 2016=3.1 · 2017=3.6 · 2018=3.2 · 2019=3.2 · 2020=3.1 · 2021=4.6 · BLS 3.3

Where General Dynamics Electric Boat falls in its industry

454 Naval ship building establishments

Safer than 58% of graded establishments in this industry, whose median TCR is 4.2.

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 9 Naval ship building employers in Connecticut.

General Dynamics Electric Boat (12,075 employees, TCR 3.5) among 29 same-industry peers, split at the industry median of 100 employees and a TCR of 4.2 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 05,00010,00015,000 0510152025 Average employees Total Case Rate General Dynamics Electric Boat
General Dynamics Electric Boat (12,075 employees, TCR 3.5) among 29 same-industry peers, split at the industry median of 100 employees and a TCR of 4.2

General Dynamics Electric Boat has more employees than the Naval ship building median and a lower injury rate than the industry's median TCR of 4.2. 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
2021 4.6 3.7 325 240 1
2020 3.1 2.4 264 110 0
2019 3.2 2.1 352 37 0
2018 3.2 2.1 362 25 0
2017 3.6 2.3 380 35 0
2016 3.1 1.9 307 22 0

OSHA ITA peer cross-reference

Establishment peer ledger

336611 · CT · Groton

454 Naval ship building employers nationwide with a credible TCR · 7,008 rated employers in Connecticut with headcount on file · 67 employers in Groton, 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 Metro Machine Corp DBA General Dynamics NASSCO 3.5 TCR
NAICS-TCR T. T. Barge Services, Mile 237 LLC 3.5 TCR
NAICS-TCR Gulf Copper Ship Repair 3.5 TCR
NAICS-TCR Jamestown Metal Marine Sales, Inc. 3.6 TCR
STATE-SIZE University of Connecticut, Storrs 12,616 FTE
STATE-SIZE University of Connecticut - Storrs 13,590 FTE
STATE-SIZE Pratt & Whitney East Hartford 9,837 FTE
STATE-SIZE Electric Boat, Groton, CT. 15,116 FTE
CITY-NEAR Pfizer Inc 3,201 FTE
CITY-NEAR University of Connecticut- Avery Point Campus 314 FTE
CITY-NEAR UConn - Avery Point Campus 258 FTE
CITY-NEAR City of Groton 254 FTE
NAT-TCR Sparta CUSD 3.5 TCR
NAT-TCR Fort Valley, GA - MK Plant 6 3.5 TCR
NAT-TCR K052-M001 3.5 TCR
NAT-TCR Fire & Life Safety America Nashville 3.5 TCR
NAT-SIZE Ronler Acres Campus 11,998 FTE
NAT-SIZE Rush University Medical Center 12,172 FTE
NAT-SIZE Kygra - Worldport 11,933 FTE
NAT-SIZE University of Virginia 11,898 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: 2021, 2020, 2019, 2018, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.