Transportation Equipment Manufacturing in Connecticut
NAICS 336 · CT
Connecticut is home to Transportation Equipment Manufacturing, an industry with a location quotient of 2.46 according to the Bureau of Labor Statistics in 2024. Listed in the register are 301 facilities in 91 cities across Connecticut as of 2026, with 2 facilities first seen this year. The largest plant listed is ELECTRIC BOAT COMPANY in Groton, with 16,009 employees as of 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Connecticut8 FACILITIES
| Facility | City | Employees | Status |
|---|---|---|---|
| Mcmellon Bros., Incorporated | Stratford | 20–99 | ACTIVE |
| Dpf Regeneration.com LLC | Stratford | — | ACTIVE |
| Sikorsky Aircraft Headquarters | Stratford | — | LIKELY ACTIVE |
| Sikorsky Aircraft Corporation | Stratford | — | LIKELY ACTIVE |
| Stratford Army Engine Plant | Stratford | — | UNVERIFIED |
| Lockheed Martin Corporation US CT Stratford Main St (5225) | Stratford | 500+ | LIKELY ACTIVE |
| Sikorsky Support Services INC | Stratford | — | LIKELY ACTIVE |
| Jgs Property Dba R.a. Lalli, INC. | Stratford | — | UNVERIFIED |
All transportation equipment manufacturing nationwide · All manufacturing in Connecticut