Submarine building · Connecticut

Electric Boat, Groton, CT.

Name: Electric Boat, Groton, CT. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Groton, CT · ~15,116 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 2.7
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Electric Boat, Groton, CT. runs at 82% of its industry's injury rate - about level with the typical Submarine building workplace, earning a grade C.

Electric Boat, Groton, CT.: 2.7 TCR = 82% of Submarine building BLS 3.3 · 2y Form 300A (see methodology below)

Electric Boat, Groton, CT. safety composite

Electric Boat, Groton, CT. scores strongest on total case rate (tcr) (safer than 67% of same-industry peers) and weakest on dart rate (safer than 52%), 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).

58/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.69 per 100 workers

Safer than 67% of industry peers
DART rate: D 1.99 per 100 workers

Safer than 52% of industry peers
Fatalities: D 0

Safer than 52% 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%).

Electric Boat, Groton, CT. held a steady TCR band

Electric Boat, Groton, CT.'s TCR held near 0.1 from 2.6 in 2023 to 2.8 in 2024. In 2024, DART was 0.74× this establishment's average TCR (severity share of cases).

2023=2.6 · 2024=2.8

OSHA ITA Form 300A scorecard

Establishment book 336611 · Groton, CT AT/BELOW-IND · LARGE

Grade C · TCR 2.7 · 82% of ind

DART 2.0 DART
RANK #2/9
PHOTO Conrad Orange
BOOK 2y book
INJ 775 inj
SIZE ~15,116 FTE

Nearest TCR peer: Conrad Orange (0.0 TCR gap)

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

This site

2.7
Conrad Orange

2.7
Walashek Indus

2.7
RMK Merrill St

2.7
Metro Machine

2.7

What this shows Electric Boat, Groton, CT. averages 2.7 TCR (82% of the Submarine building BLS benchmark).

Electric Boat, Groton, CT. TCR series: 2023=2.6 · 2024=2.8 · BLS 3.3

Where Electric Boat, Groton, CT. falls in its industry

454 Submarine building establishments

Safer than 67% of graded establishments in this industry, whose median TCR is 4.2.

Grade C

More dangerous than peersSafer than peers

Narrower to Connecticut alone (the establishments it most directly competes with for workers and contracts): ranked #2 safest of 9 Submarine building employers in Connecticut.

Electric Boat, Groton, CT. (15,116 employees, TCR 2.7) among 29 same-industry peers, split at the industry median of 100 employees and a TCR of 4.2

Electric Boat, Groton, CT. has more employees than the Submarine 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
2024	2.8	2.0	423	30	0
2023	2.6	1.8	352	40	0

OSHA ITA peer cross-reference

Establishment peer ledger

336611 · CT · Groton

454 Submarine 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	Place	Metric
NAICS-TCR	Conrad Orange	ORANGE, TX	2.7 TCR
NAICS-TCR	Walashek Industrial & Marine, Inc. - Norfolk	NORFOLK, VA	2.7 TCR
NAICS-TCR	RMK Merrill Stevens	MIAMI, FL	2.7 TCR
NAICS-TCR	Metro Machine Company DBA General Dynamics NASSCO-Norfolk	NORFOLK, VA	2.7 TCR
STATE-SIZE	Yale-New Haven Hospital	NEW HAVEN	15,725 FTE
STATE-SIZE	University of Connecticut - Storrs	STORRS	13,590 FTE
STATE-SIZE	University of Connecticut, Storrs	STORRS	12,616 FTE
STATE-SIZE	General Dynamics Electric Boat	GROTON	12,075 FTE
CITY-NEAR	Pfizer Inc	Groton	3,201 FTE
CITY-NEAR	University of Connecticut- Avery Point Campus	Groton	314 FTE
CITY-NEAR	UConn - Avery Point Campus	Groton	258 FTE
CITY-NEAR	City of Groton	Groton	254 FTE
NAT-TCR	Mizkan America	Crossville, TN	2.7 TCR
NAT-TCR	Store 050	Sylva, NC	2.7 TCR
NAT-TCR	McLean Packaging	Pennsauken, NJ	2.7 TCR
NAT-TCR	Pentastar Aviation, LLC	Waterford, MI	2.7 TCR
NAT-SIZE	AECOM DCS (US Operations)	Dallas, TX	15,100 FTE
NAT-SIZE	4795-Aa-Dfw-Dallas Fort Worth-Dfw-Trml	Dfw Airport, TX	14,816 FTE
NAT-SIZE	Nike World Headquarters	Beaverton, OR	14,796 FTE
NAT-SIZE	Memorial Hospital Corporation (MEM)	New York, NY	14,781 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.