C51

Structural Steel Contractor Verification - Page 32

1,596 structural steel contractors checked against 6 data sources (Page 32 of 32)

About C51 License

Structural steel contractors for steel frame construction.

1,596

Total Contractors

1,517

Active Licenses

181

Federal Records

Verify a Structural Steel Contractor

Structural Steel Contractors

Showing contractors 1551-1596 of 1,596

WAYNE ENGINEERING CONSTRUCTION

Clear

License #1029681 · SANTA ANA

Active

WEBSTER CPM,INC.

Clear

License #482379 · NOVATO

Active

WEIGLE METAL FABRICATION CO

Clear

License #835681 · SPRING VALLEY

Active

WELDBOARD METALS INC

Clear

License #731849 · GLENDALE

Active

WELDWAY STEEL FABRICATION INC

Clear

License #1046028 · OAKDALE

Active

WENZ RICHARD R

Clear

License #1035690 · MORRO BAY

Active

WERTECH STEEL FABRICATION CO

Clear

License #504058 · PERRIS

Active

WESLYN MFG INC

Clear

License #136343 · FOLSOM

Active

WEST COAST EQUIPMENT SALES INC

Clear

License #984410 · TURLOCK

Active

WEST COAST ERECTORS CO,INC

Clear

License #999678 · CHINO

Active

WEST COAST STEEL ERECTORS INC

Clear

License #1027629 · CLAYTON

Active

WEST COAST STRUCTURAL STEEL INC

Clear

License #1121562 · SAN JOSE

Active

WEST CORK WELDING

Clear

License #851607 · SAN FRANCISCO

Active

WEST VALLEY WELDING

Clear

License #986075 · CANOGA PARK

Active

WESTCO IRON WORKS INC

Clear

License #860762 · LIVERMORE

Active

WESTECH METAL FABRICATION INC

Clear

License #831804 · SAN DIEGO

Active

WESTEEL BUILDERS

Clear

License #1019539 · EL CAJON

Active

WESTERN METAL DECK

Clear

License #550219 · ONTARIO

Active

WESTLAND COMPANY

Clear

License #437335 · CERRITOS

Contr Bond Susp

WESTSIDE STEEL ERECTORS INC

Clear

License #1056944 · SHERMAN OAKS

Active

WHEELER JAE SUN

Clear

License #618758 · BERKELEY

Active

WHITACRE D A CONSTRUCTION INC

Clear

License #468758 · EL CAJON

Active

WHITE'S STEEL INC

Clear

License #477294 · THERMAL

Active

WILEY'S CUSTOM FABRICATION & DESIGN

Clear

License #802172 · OAKDALE

Active

WILKEY INDUSTRIES INC

Clear

License #765082 · TURLOCK

Active

WILLIAMS STEEL COMPANY

Clear

License #811433 · JACKSON

Active

WILMINGTON IRON WORKS

Clear

License #1056301 · WILMINGTON

Active

WINCHESTER CANYON CONSTRUCTION INC

Clear

License #423511 · GOLETA

Active

WINTHER STEEL

Clear

License #802981 · SOLVANG

Active

WIZARD OF METALS INC

Clear

License #850157 · SAN FRANCISCO

Active

WRIGHT WELDING STRUCTURAL FABRICATION

Clear

License #806366 · ELK GROVE

Active

YIZ IRONWORKER

Clear

License #1061277 · SAN FRANCISCO

Active

YOGEV YECHIEL

Clear

License #647206 · GARDENA

Active

YOON KYUNG BOK

Clear

License #818887 · COMPTON

Active

YOUNGJIN STEEL INC

Clear

License #1119273 · DIAMOND BAR

Active

YOUNGS IRON WORKS INC

Clear

License #248503 · SUN VALLEY

Active

YUNGMAN CONSTRUCTION INC

Clear

License #922755 · SAN LUIS OBISPO

Active

Z IRON WORKS INC

Clear

License #817773 · VALLEY VILLAGE

Active

ZANCOLI PABLO DARIO

Clear

License #1094522 · NORTHRIDGE

Active

ZARA CONSTRUCTION

Clear

License #1063261 · SACRAMENTO

Active

ZARATE STRUCTURAL STEEL WORKS

Clear

License #1119827 · RICHMOND

Active

ZAVALA STEEL FABRICATION INC

Clear

License #1082408 · LANCASTER

Active

ZETH ENGINEERING AND CONSTRUCTION

Clear

License #844700 · VICTORVILLE

Active

ZPMC NORTH AMERICA INC

Clear

License #1066157 · IRVINE

Active

ZUMA CONSTRUCTION GROUP INC

Clear

License #1071624 · THOUSAND OAKS

Active

ZYKO STEEL INC

Clear

License #1146697 · NEWARK

Active

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 1,596 licensed structural steel contractors in the state, 95% currently hold active licenses and 11.3% 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, 11.3% 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.