Top 22 Automotive Parts Manufacturers in Michigan 2026

Cadillac Products Automotive Company

Troy, Michigan

Cadillac Products Automotive Company (CPAC) is headquartered in Troy, Michigan, with additional plants in Rogers City and Roseville, Michigan, and Schertz, Texas. The business traces its roots to 1942, when M.P.

Coastal Automotive

Holland, Michigan

Coastal Automotive, headquartered in Holland, Michigan, was founded in 2007 as a manufacturer of passive energy management solutions for the mobility sector. The company operates additional manufacturing facilities in Rochester Hills, Michigan, and maintains sales and engineering offices in Seoul and Tokyo.

Edscha Automotive Michigan

Auburn Hills, Michigan130 employees

Edscha Automotive Michigan operates from Auburn Hills, Michigan, as part of the global Edscha group that traces its origins to 1905. The Michigan site employs approximately 130 people and functions within a network of 25 locations worldwide that supply nearly all major automobile manufacturers.

G&G Industries

Shelby Township, Michigan

G&G Industries was established in 1992 in Shelby Township, Michigan, initially operating as a fabric die cutter and converter. The company specializes in honeycomb composite spray molding (CSM) for automotive interior trim and NVH components, operating four CSM cells with ten dedicated presses, two converting presses, and two honeycomb expanders in a 70,000-square-foot facility.

Sanhua Automotive USA, INC

Auburn Hills, Michigan

Sanhua Automotive USA, INC is headquartered in Auburn Hills, Michigan, serving as the North American arm of a global thermal-management specialist founded in 2004. The parent company, Zhejiang Sanhua Automotive Parts Co., Ltd., is a subsidiary of the publicly listed Zhejiang Sanhua Intelligent Controls (stock code 002050) and began as a developer of automotive thermal valves in Hangzhou, China.

Standard Components LLC

Sterling Heights, Michigan

Standard Components LLC was founded in 2001 in Sterling Heights, Michigan, as a privately owned business specializing in aerospace, defense, and automotive fixturing and tooling. In 2016 the company was acquired by the private equity firm Summit Equity Group, which has since invested in expanding its operations.

TSM Corporation

Auburn Hills, Michigan180+ employees

TSM Corporation operates from Auburn Hills, Michigan, where it was founded in 1978. The company provides full-service manufacturing of custom components for automotive powertrain, driveline, and chassis applications.

A&A Manufacturing

Spring Lake, Michigan

A&A Manufacturing has operated from Spring Lake, Michigan since its founding in 1966. The family‑owned business began with a simple goal: produce hard‑to‑find chassis tabs, mounts, and hardware domestically so racers and fabricators could focus on building better vehicles.

Amsted Automotive

Saginaw, Michigan2000 employees

Amsted Automotive is headquartered in Saginaw, Michigan. The company traces its roots to 1903 with the founding of Burgess-Norton.

Automotive Manufacturing LLC.

Sunfield, Michigan

Automotive Manufacturing LLC operates from Sunfield, Michigan, where it was founded in 1988 with the goal of supplying high-quality restoration parts to car enthusiasts. The company manufactures replacement body panels and patch panels for classic American vehicles, covering brands such as Chevrolet, Ford, Dodge, Buick, Pontiac, and Oldsmobile.