With $850 million in facility-specific investment, this project clears AFT's $100 million investment threshold (AFT includes any project meeting $100 million in facility-specific investment OR 100 permanent operating jobs). It is also confirmed by official public sources and involves a physical manufacturing facility in the United States.
View full methodology →The shipbuilding context.
Shipbuilding tracks qualifying U.S. shipyards and facilities that build commercial or naval vessels, or manufacture major hull sections, modules, and components for them, including submarine work delivered to another yard for final assembly. These projects depend on waterfront sites, heavy-lift infrastructure, specialized suppliers, and large skilled-trades workforces such as welders, pipefitters, and electricians.
At a glance
- Company
- General Dynamics Electric Boat
- Industry
- Shipbuilding
- Location
- Groton, Connecticut
- Investment
- $850.0M
- Permanent jobs announced
- Not disclosed
- Status
- Operational
- Announced
- May 1, 2018
- Operations began
- Date not publicly specified
- Added to tracker
- Oct 27, 2026
Official references
- Office of Gov. Dannel Malloy, "Gov. Malloy announces historic long-term partnership with General Dynamics Electric Boat," May 1, 2018 https://portal.ct.gov/malloy-archive/press-room/press-releases/2018/05-2018/gov-malloy-announces-historic-long-term-partnership-with-general-dynamics-electric-boat
- General Dynamics — Groton expansion groundbreaking (September 13, 2019) https://gd.com/Articles/2019/09/13/electric-boat-breaks-ground-on-facility-for-new-submarines
- General Dynamics, 2023 Annual Report https://s22.q4cdn.com/891946778/files/doc_financials/2023/ar/2023-general-dynamics-annual-report-form-ars-_final-pdf.pdf
- Electric Boat News, second half 2020 https://www.gdeb.com/news/ebnews/PDF/ebnews_2020_2ndhalf.pdf
Cite this project
American Factory Tracker. "Groton Shipyard Expansion — General Dynamics Electric Boat, Groton, CT." https://americanfactorytracker.com/projects/general-dynamics-electric-boat-groton-shipyard-expansion. Accessed October 28, 2026.
Please also cite the original sources listed above for underlying figures.
Related AFT record: Electric Boat Groton capital plan (not in totals)