Tenneco is a global automotive parts manufacturer headquartered in Northville, Michigan. It specializes in original equipment and aftermarket products, including ride control, emissions control, powertrain components, and suspension systems. The company operates through four business groups: Clean Air, Powertrain, Performance Solutions, and DRiV. With a workforce of approximately 71,000 employees, Tenneco serves over 25 original equipment manufacturers (OEMs) and more than 500 aftermarket customers worldwide. In 2022, Tenneco was acquired by Apollo Global Management.