Baltimore Operations


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10301 Philadelphia Rd
White Marsh, MD. 21162 United States

Year Opened:

December 2000

Facility Size:

471,000 sq. ft. including outside and support buildings plus 110,500 sq. ft. for the addition of the eMotor building

Employee Information







Union Local:

UAW Local 239

Facility Details

A highly green and environmentally friendly plant. We continue to be land fill free and recycle 90% of our waste, with the rest going to waste energy. The campus is powered in part by a 1.23 megawatt rooftop solar array, generating about 9 percent of our annual energy consumption. Also, a certified Wildlife Habitat resides on plant property promoting Maryland native flora and fauna.


  • January 2010 - $111 million for building addition and process equipment to build high-volume global rear-drive electric motors
  • April 2010 - $23.5 million for additional production of vehicle electrification components

Products & Production

  • A1000 Transmission
    Goes into 2500/3500 Series Chevrolet Silverado and GMC Sierra Full Size Pick-Up Trucks

  • 6-Speed Torque Converters Clutch
    Goes into the Full Size Pickups, Chevrolet Corvette and Camaro

  • Electric Drive Motors For Chevrolet Spark EV
    Start of Production - January 2013



  • June 2014 - GM Baltimore Operations was recognized with a Project of Distinction Award for the solar array on top the eMotor plant from PVA America. This award recognizes excellence in the industry, and acknowledges projects such as the solar array as a driving force behind the success, growth, and future of solar.  

  • November 2013 – Baltimore County Chamber of Commerce Business Hall of Fame inducted GM Baltimore Operations for being highly green and environmentally friendly.

  • 2013 - Recertified by the Wildlife Habitat Council for maintaining and improving the wildlife habitat on the grounds.

  • June 2012 – GMBO was among the winners of the Maryland Green Registry Leadership Awards. We are the only manufacturing facility that has won it twice since they started the award in 2010. The award recognizes organizations that have shown a strong commitment to sustainable practices that achieve measureable results.

  • November 2011 - GMBO earned the Wildlife Habitat Council certification for creating and enhancing a wildlife habitat on their grounds.

  • April 2011 – GMBO was named 1st Place Winner in Baltimore Business Journal's Annual Green Business Awards event.  The event is held annually to recognize those companies who have gone the extra mile to make the Baltimore Metropolitan area a cleaner, greener environment to live and work in.  

GM State Economic Impact

  • State Wages: $29,856,290.13
  • Income Tax: $2,038,982.32

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