"Great customer service and great roll former machines. Purchased a new machine from Zimmerman and have a great experience all around..."
- AISC – BU, Certified Building Fabricator
- AISC – IBR, Certified Bridge Fabricator, Intermediate
- AISC – CBR, Major Steel Bridges
- AISC – FCE, Fracture Critical Endorsement
- AISC – SPE-P1, Sophisticated Paint Endorsement