C51

Structural Steel Contractor Verification - Page 33

1,619 structural steel contractors checked against 6 data sources (Page 33 of 33)

About C51 License

Structural steel contractors for steel frame construction.

1,619

Total Contractors

1,538

Active Licenses

181

Federal Records

Verify a Structural Steel Contractor

How to Verify a Structural Steel Contractor (C51) in California

California requires all contractors performing structural steel work valued at $500+ to hold a valid CSLB C51 license. Of the 1,619 licensed structural steel contractors in the state, 95% currently hold active licenses and 11.2% have at least one federal compliance record.

Manual vetting takes 45+ minutes per contractor and routinely misses violations in databases most people don't know to check. SiteVetter runs CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, and EPA environmental records in seconds—creating a timestamped compliance artifact.

Verification Checklist for Structural Steel Contractors

  • Verify the contractor license is active and in good standing
  • Request proof of insurance and bonding
  • Get at least 3 written quotes before selecting a contractor
  • Check federal databases: SAM.gov, OSHA, DOL, and EPA records
  • Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Verification Matters for Structural Steel Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For structural steel work specifically, 11.2% of licensed contractors have federal records that a standard CSLB license check wouldn't reveal. SiteVetter's 5-database check catches what a single-source verification misses.

Data sourced from California Contractors State License Board and federal databases. Updated weekly. For official verification, check directly with CSLB.