SiteVetterSiteVetter
C51

C51 Structural Steel Contractors in California - Page 5

1,642 CSLB C51 license records for California (Page 5 of 33)

CSLB C51 License Scope

Structural steel contractors for steel frame construction.

1,642

Total Contractors

1,538

Active Licenses

181

Federal Records

Run CSLB License Lookup

C51 Structural Steel Contractor License Records

Showing contractors 201-250 of 1,642

A R STEEL INC

Clear

License #1143654 · DELANO

Active

A S A P STRUCTUAL STEEL

Clear

License #955986 · PASADENA

Active

A V C CONSTRUCTION INC

Clear

License #996877 · BAKERSFIELD

Active

A V HERITAGE BUILDERS INC

Clear

License #904349 · ROSAMOND

Active

A W I BUILDERS INC

Clear

License #818478 · BURBANK

Active

A W MANUFACTURING SPECIALIST INC

Clear

License #928387 · STOCKTON

Active

A&S STRUCTURAL FORCE CO

Clear

License #1149385 · NEWARK

Active

A&S STRUCTURAL STEEL INC

Clear

License #1148056 · PHELAN

Active

A-Z STEEL COMPANY

Clear

License #1049782 · TUCSON

Active

A4WELDING STRUCTURAL STEEL

Clear

License #1071605 · NORCO

Active

AAF STEEL STRUCTURAL

Clear

License #858004 · MISSION VIEJO

Active

AAW METALWORKS INC

Clear

License #905594 · FRESNO

Active

ABLE STEEL FABRICATORS INC

Clear

License #505830 · MESA

Active

ABNEY STEEL ERECTORS INC

Clear

License #743210 · FRESNO

Active

ACCURATE STEEL

Clear

License #1017166 · ANAHEIM

Active

ACE WELDING AND FABRICATION INC

Clear

License #991341 · OCEANSIDE

Active

ACIES IRON WORKS LLC

Clear

License #1010793 · BELL

Contr Bond Susp

ACTION IRONWORKS

Clear

License #722337 · WILTON

Active

ACUFAB STRUCTURAL

Clear

License #1113154 · GARDENA

Active

ACW STEEL

Clear

License #800603 · RICHMOND

Active

AD METAL BUILDING INC

Clear

License #1148420 · SAN BERNARDINO

Active

ADF STEEL INC

Clear

License #1064060 · GREAT FALLS

Active

ADF STRUCTURAL STEEL INC

Clear

License #1007253 · TERREBONNE

Active

ADVANCE STEEL TANK CONSTRUCTION

Clear

License #1109178 · WELLINGTON

Active

ADVANCE WELDING INCORPORATED

Clear

License #747545 · SAN PEDRO

Active

ADVANCED STEEL FABRICATION INC

Clear

License #794692 · SALINAS

Active

ADVANCED TOWER SERVICES LLC

Clear

License #1148382 · ALBUQUERQUE

Active

ADVANCED WELDING & STEEL INC

Clear

License #1137384 · GRANGEVILLE

Active

ADVANTAGE PRODUCTS INC

Clear

License #809097 · MONTEREY

Active

AE&F INC

Clear

License #1113608 · SANTA ANA

Contr Bond Susp

AFC SOLAR ERECTORS

Clear

License #1125940 · ENNIS

Liab Ins Susp

AFC STEEL FABRICATORS & ERECTORS

Clear

License #1074861 · ENNIS

Active

AGATE CONSTRUCTION

Clear

License #608480 · SCOTTSDALE

Active

AGATE STEEL INC

Clear

License #952062 · SCOTTSDALE

Active

AGGRESSIVE WELDING SERVICES INCORPORATED

Clear

License #841755 · MODESTO

Active

AGMJ CONSTRUCTION INC

Clear

License #1109401 · GLENDALE

Active

AGRAMON'S IRON WORKS

Clear

License #1076553 · LOS ANGELES

Active

AHLBORN STRUCTURAL STEEL INC

Clear

License #854244 · SANTA ROSA

Active

AIM STEEL INC

Clear

License #1047617 · NORWALK

Work Comp Susp

AIR TIGHT

Clear

License #832746 · ARCATA

Active

AJ CLAREMONT STRUCTURAL STEEL FAB INC

Clear

License #1137486 · ONTARIO

Active

AJ STEEL ERECTOR INC

Clear

License #1148926 · CHINO

Active

AJ STEEL INC

Clear

License #858726 · CHINO

Active

AJM GENERAL CONSTRUCTION

Clear

License #1035253 · SANTA ROSA

Active

ALARCON STEEL PRODUCTS INC

Clear

License #1151725 · SAN DIEGO

Active

ALBERT IRON WORK

Clear

License #1128468 · SUN VALLEY

Active

ALCATRAZ IRON INC

Clear

License #1057911 · LOS ANGELES

Active

ALCHEMY IRON WORKS

Clear

License #1144684 · RIVERSIDE

Active

ALDAZ STEEL FAB

Clear

License #871568 · MORENO VALLEY

Active

ALEGRE MACHINERY

Clear

License #871787 · TRACY

Active

C51 Structural Steel Contractor License Lookup

Use this page when you need a California C51 license lookup, a list of licensed structural steel contractors, or a quick screen before assigning structural steel work to a sub. Each row links to a contractor profile with CSLB status, workers' comp, bond, federal records, and permit checks.

California has 1,642 CSLB C51 license records for structural steel contractors. 94% currently hold active licenses and 11.0% have at least one federal compliance record. SiteVetter checks CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, EPA environmental records, and building permits in seconds.

What to Check for C51 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 Federal Records Matter for Structural Steel Work

For structural steel work, 11.0% of licensed contractors have federal records that a standard CSLB license check would not reveal. SiteVetter's 6-source lookup gives GCs a faster way to compare subs before bid award, onboarding, or renewal review.

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