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  • Company Type For Profit
  • Phone Number 313-667-6846
OnStar is a subsidiary of General Motors. OnStar provides an in-vehicle security, communications, and diagnostics system — available on more than 50 GM models.

Lists Featuring This Company

Great Lakes Mobile Companies
1,540 Number of Organizations • $12.7B Total Funding Amount • 1,228 Number of Investors
Great Lakes Companies With More Than 1000 Employees
5,881 Number of Organizations • $402.1B Total Funding Amount • 2,014 Number of Investors
Great Lakes Companies With More Than 10 Employees (Top 10K)
9,719 Number of Organizations • $649.6B Total Funding Amount • 23,811 Number of Investors
Mobile Companies With More Than 100 Employees
2,807 Number of Organizations • $240.7B Total Funding Amount • 6,813 Number of Investors

Frequently Asked Questions

Where is OnStar's headquarters? OnStar is located in Warren, Michigan, United States.Who are OnStar's competitors? Alternatives and possible competitors to OnStar may include Drei Austria.