Piston Group is a private investment platform and automotive supplier founded in 1995 and headquartered in Southfield, Michigan, with operations in the United States and Mexico. The company designs, engineers and manufactures assemblies, climate control systems and components, and automotive interior technologies for major manufacturers. It describes itself as the world's largest Value Add Assembly supplier and a centre of assembly innovation.
The group's work spans several technical domains: value-add assembly, climate control and HVAC components, automotive interior solutions, and in-house design and engineering capability. Products include Value Add Assemblies built for top-tier manufacturers, high-quality climate control systems and components, and interior technologies drawing on decades of manufacturing experience.
By scale, Piston Group ranks as the 24th largest automotive OEM supplier nationally in the United States and the largest African American-owned automotive supplier in the country. Crain's Detroit ranked it the largest minority-owned business based on 2020 revenue. The company was founded by NBA champion and industry executive Vinnie Johnson.
Industry verticals served include automotive, automotive OEM supply, climate control and HVAC components, and automotive interiors.





