EV Manufacturing Companies in Connecticut

Connecticut has approximately 4,200 manufacturing establishments and 160,000 manufacturing employees. Connecticut is a precision manufacturing powerhouse, home to Pratt & Whitney, Sikorsky, and Electric Boat, with deep expertise in aerospace and defense components.

Connecticut contributes to the national ev manufacturing landscape. Electric vehicle manufacturing is one of the fastest-growing segments of US manufacturing, encompassing battery cell and pack production, electric motor and inverter manufacturing, EV-specific chassis and body production, and final vehicle assembly. Both legacy automakers and new entrants like Rivian, Lucid, and numerous Chinese and European companies are investing in US EV production.

EV Vehicle Assembly: Companies like Tesla, Rivian, and Lucid operating dedicated EV assembly plants, plus legacy OEM EV lines.

Battery Cell Manufacturers: Gigafactory operators producing lithium-ion battery cells, including LG, Samsung SDI, Panasonic, and CATL joint ventures.

Battery Pack Assemblers: Companies assembling battery modules and packs from cells, including thermal management and BMS integration.

Electric Motor Manufacturers: Producers of permanent magnet and induction motors for EV propulsion systems.

EV Component Suppliers: Manufacturers of inverters, on-board chargers, DC-DC converters, and high-voltage wiring harnesses.

Major industrial centers in Connecticut include Hartford, Bridgeport, New Haven, Stamford, and Waterbury. These cities have concentrations of manufacturers across sectors including aerospace manufacturing, defense manufacturing, and medical device manufacturing.