Where is OnStar Corporate office Headquarters

OnStar Headquarters Address and Contact

  • Address:400 Renaissance Ctr, Detroit, Michigan, 48265, United States
  • Phone Number: (248) 588-6050
  • Email:
  • Number of Employees:150
  • Established:1995
  • Key People:Mark Timm
  • Est. Annual Revenue:<$5M

OnStar Headquarters Location & Directions

OnStar Headquarters Executive Team



Mark TimmDirector, Systems Operations
Jeff MillwoodGeneral Manager
Andrew SchwartzVice President Of Mtg.
Amanda MockArea Sales Manager
Belle YeeSupervisor
Jeremy SchiesExecutive Director
Richard LeeVice President
Leiwen ChenC&B Supervisor

About OnStar, History and Headquarters Information

OnStar Headquarters Photos


OnStar Company Resources