Our Mission

MSI Facility in Bloomington, CA
MSI offers the experience, dedication, flexibility, equipment and manpower to assure that your project is fabricated and erected within budget and delivered to you on time.
You have the commitment of every MSI employee that your structural, plate or miscellaneous project will be of the highest quality through our utilization of in house and outside resources.
MSI is Your Source for:
Company Profile & Information
You have the commitment of every MSI employee that your structural, plate or miscellaneous project will be of the highest quality through our utilization of in house and outside resources.
MSI is Your Source for:
- Steel Fabrication
- Erection
- Budget Establishment
- Design Build
- Project Management
- Consultation Services
Company Profile & Information
- MSI offers over four decades of experience in commercial, industrial, petrochemical, medical, pharmaceutical, educational, theme parks, entertainment facilities, Caltrans and transportation.
- MSI is located in Southern California on 13 acres and has 75,000 sq./ft. under crane.
- Contractor's License No. 585760-C51
- Los Angeles City Approved Fabricator (No. 448)
- SBE Certified (No. 58105)
- Union Affiliations - Local 509, Shop Ironworkers and Local 433, Field Ironworkers
- Member of the Steel Fabricator's Association and the American Subcontractors Association - LA/Orange County/Inland Empire ASA Chapter
Contact Information

Bloomington, CA
- For a Projects Completed Listing, Facilities Listing, Brochures or a Partial Customer Listing, General Information and Sales contact: Chris Muhlhauser at chris@msisteel.com
Muhlhauser Steel, Inc.
25825 Adams Avenue
Murrieta, CA USA 92562
Phone: 909.877.2792 Fax: 909.877.4344