Cornerstone Composites INC
At a glance
Employees20-99
In business sinceNot reported
HeadquartersMilwaukee, WI
SAM.gov UEIM9Z1W8GWWHK5
Cornerstone Composites manufactures custom-molded composite parts using precision molding and higher-strength formulations. The company provides secondary operations including CNC machining, heat treating, custom painting, and assembly services to deliver finished parts and assemblies. They serve original equipment manufacturers and operate a 2,600 square foot tool room equipped for tooling work, die and mold preparation, and production runs.
Summarized from the company’s own website
Certifications
AS9100
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Cornerstone Composites INC | Milwaukee | WI | 20–99 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.

