The Tesla Factory is an automobile manufacturing plant in south Fremont, California, and the principal production facility of Tesla, Inc.. The facility was formerly known as New United Motor Manufacturing, Inc. (NUMMI), a joint venture between General Motors and Toyota. The plant is located in the East Industrial area of Fremont between Interstates 880 and 680, and employed around 10,000 people in June 2018. In addition to Tesla employees, the company uses contractors for various functions. In May 2018, Elon Musk, in an apparent goal of reducing dead weight and raising efficiency and quality within its operation, decided to cut contractors and sub-contractors, ordering staff to justify and personally vouch for contractors worth keeping.