Maynard Steel Casting CO
At a glance
Employees100-499
In business since1907
Industry
HeadquartersMilwaukee, WI
US patents2
SAM.gov UEILFHASLA5G2E5
CAGE code25876
Incorporated inDE
- low-carbon steel castings
- ranging
- ISO 9001
- Mining Equipment
- Construction
- Earth-Moving
- Defense
- Heavy Machinery
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Certifications
ISO 9001
Patents
2 US patents granted 2017–2019, none of them in the five years to SEP 2025.
Materials, metallurgy 2
- Steel foam and method for manufacturing steel foamUS 10,493,522 · granted DEC 3, 2019
- Steel foam and method for manufacturing steel foamUS 9,623,480 · granted APR 18, 2017
Granted to Maynard Steel Casting Company · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Maynard Steel Casting CO | Milwaukee | WI | 100–499 | 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.