Automotive OEM Manufacturing Companies in Massachusetts

Massachusetts has approximately 5,800 manufacturing establishments and 245,000 manufacturing employees. Massachusetts is a leader in medical devices, biotech manufacturing, and defense electronics, with Route 128 and the I-495 corridor forming a high-tech manufacturing belt.

Massachusetts contributes to the national automotive oem manufacturing landscape. Automotive OEM manufacturing includes vehicle assembly plants and major component facilities operated by automakers and their direct suppliers. The US has over 40 light vehicle assembly plants operated by companies including GM, Ford, Stellantis, Toyota, Honda, BMW, Mercedes-Benz, Hyundai, and Tesla.

Vehicle Assembly Plants: Final assembly facilities that build complete vehicles, operated by domestic and foreign automakers across the Southern and Midwestern US.

Powertrain Plants: Dedicated facilities producing engines, transmissions, electric motors, and battery packs.

Stamping Operations: Large-scale metal stamping facilities producing body panels, structural components, and closures.

EV & Battery Manufacturers: New entrants and legacy automakers building gigafactories for battery cells, packs, and EV-specific components.

Major industrial centers in Massachusetts include Boston, Worcester, Springfield, Lowell, and Cambridge. These cities have concentrations of manufacturers across sectors including medical device manufacturing, semiconductor manufacturing, and defense manufacturing.