Cornerstone Composites: Detailed Company Information & Corporate Profile
Summary
Cornerstone Composites is an independent engineering company headquartered in Milwaukee, WI, serving the Milwaukee Metropolitan Area. Established in 2015, the firm employs between 100 and 200 staff and reports annual revenue in the $10M to $50M range.
Its core specialties include engineered mechanical parts, molded composites, hard‑tool molding, and high‑performance composites, enabling tailored solutions across a variety of industrial applications. The leadership team is led by President Patrick Cain, with Vice President Michael Walsh overseeing sales and marketing, Technical Director David Ward directing product development, Chief Executive Officer Mark Schuh guiding strategic direction, and key manufacturing roles filled by Nathan Spannbauer (Production Supervisor), Jonathan Stowe (Sr Manufacturing Engineer), and Patton Connour (Production Manager).
Additional support is provided by Procurement Manager Aaron Stowe, Business Development Lead Geoff Sheppard, and engineering staff Edmund Malczewski and Jacob Frey, ensuring a cohesive approach to innovation and client service.
| Cornerstone Composites Website | cornerstonecomposites.com |
| Social Links |  |
| Phone Number | +1 4149645200 |
| Industries | |
| Cornerstone Composites Headquarters Address | 900 E Vienna Ave, Milwaukee, WI, 53212 US |
| Company Size | 100-200 employees |
| Specialities & Services | Engineered Mechanical Parts, Molded Composites, Hard Tool Molding, High Performance Composites |
| DMA Code | Milwaukee Metropolitan Area |
| Founded | 2015 |
| Estimated Annual Revenue | $10M - 50M |
| Operating Status | Independent Company |
| Updated: | 2026-09-18 |
Workforce Turnover
Length of Employment
Cornerstone Composites's workforce includes employees across a wide range of tenure levels.
29% have been with the company for 1 to 2 years29% have been with the company for 3 to 4 years14% have been with the company for 5 to 7 years29% have been with the company for 8 to 10 years
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Cornerstone Composites Corporate Information: FAQ
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