Maysteel Industries uses an external review, education, assessment, and audit Certification Process to confirm that our processes are designed to produce products that consistently meet specific requirements.  Written assurance is provided by means of a certificate issued as formal recognition by an independent accreditation body that we are operating according to international standards.

Maysteel Industries holds certifications with:

ISO 9001:2015

The ISO 9000 family of standards addresses various aspects of quality management.  The standards provide guidance for companies and organizations to ensure that products and services consistently meet customer’s requirements and that quality is consistently improved.

Allenton, WI USA – ISO 9001:2015

Monterrey, NL Mexico – ISO 9001:2008


UL is a global leader in testing, inspection, certification, auditing and validation. The UL Mark is the single most accepted Certification Mark in the United States, appearing on 22 billion products annually.

Specifically, Maysteel Industries holds a UL File for “Enclosures for Industrial Control Panels, Types 1, 3R and/or 4, Sheet Metal, Double and Single Door”