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C51

C51 Structural Steel Contractors in California - Page 17

1,642 CSLB C51 license records for California (Page 17 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 801-850 of 1,642

INDEPENDENT IRON

Clear

License #789104 · SAN BERNARDINO

Active

INDUSTRIAL MAINTENANCE SPECIALISTS INC

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License #872884 · GAS CITY

Active

INDUSTRIAL STEEL CONSTRUCTION INC

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License #926790 · SONORA

Active

INFINITY IRON INC

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License #849285 · CHINO

Active

INLAND STEEL

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License #422686 · SAN BERNARDINO

Active

INLAND STEEL ERECTORS INC

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License #1151015 · STANWOOD

Active

INLAND STEEL INC

Clear

License #1112693 · RANCHO CUCAMONGA

Active

INNOVATIVE STEEL ERECTION

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License #1087173 · WRIGHTWOOD

Active

INTERSTATE DECISIVE CONTRACTOR-I D C

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License #427352 · SAN JOSE

Active

INTERSTATE ERECTORS INC

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License #943502 · SPOKANE VALLEY

Active

INTERSTATE STEEL BUILDERS INC

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License #968575 · WINDSOR

Active

IRON & STEEL CONSTRUCTION

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License #680628 · LAKE BALBOA

Active

IRON - MEX CORP

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License #903414 · FONTANA

Active

IRON ACTIVITY

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License #904591 · FOSTER CITY

Work Comp Susp

IRON CASTLE INC

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License #983369 · SUN VALLEY

Active

IRON CONSTRUCTION & ENGINEERING CORP

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License #940834 · NORTH HILLS

Active

IRON DOG FABRICATION INC

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License #726720 · SANTA ROSA

Active

IRON GUY INC THE

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License #1117866 · PACOIMA

Active

IRON INDUSTRIES INC

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License #851744 · HANFORD

Active

IRON NIKKEL CONSTRUCTION INC

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License #877145 · BAKERSFIELD

Active

IRON ROD INC THE

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License #636851 · SAN MARTIN

Active

IRON WORK INDUSTRIES INC

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License #942016 · SANTA ANA

Active

IRON WORKS ON TIME INC

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License #1014223 · LOS ANGELES

Active

IRONMAN CUSTOM WELDING WORKS

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License #908875 · WOODLAND

Active

IRONMAN INC

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License #670390 · CHATSWORTH

Active

IRONSTONE CUSTOM DECKS

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License #848259 · COLFAX

Active

IRONSTONE METAL WORKS INC

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License #760423 · SAN CARLOS

Active

ISAAC'S IRONWORKS INC

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License #639298 · SUN VALLEY

Active

IVERSON STEEL & ERECTION INC

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License #623142 · MURRAY

Active

J & J STEEL BROS INC

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License #1124766 · LANCASTER

Active

J & L STRUCTURAL STEEL WELDING INC

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License #747271 · WALNUT

Active

J & M WELDING INC

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License #1046894 · PASO ROBLES

Active

J & R STEEL & WELDING INC

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License #618263 · ENCINO

Active

J & S STEEL CONSTRUCTION

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License #832884 · WALNUT CREEK

Active

J AND A WELDING SERVICES INC

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License #1088453 · OXNARD

Active

J AND D STEEL FABRICATION AND REPAIR

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License #1143724 · SANTA MARIA

Active

J AND D STEEL FABRICATION AND REPAIR LP

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License #1051532 · SANTA MARIA

Susp - No Qualifier

J B IRON WORK

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License #1001267 · TUJUNGA

Active

J C STEEL FABRICATION INC

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License #799544 · SAN FRANCISCO

Active

J C'S ENGINEERING

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License #980143 · SAN FRANCISCO

Contr Bond Susp

J E M UNLIMITED IRON INC

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License #831720 · ANAHEIM

Active

J G STEEL INC

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License #962458 · LOMA RICA

Active

J H V STRUCTURAL STEEL INC

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License #1141880 · BALDWIN PARK

Active

J J PORTABLE WELDING

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License #1100810 · FONTANA

Active

J K I STRUCTURAL STEEL INC

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License #1025807 · CALIMESA

Active

J K STEEL INC

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License #864128 · NORTHRIDGE

Active

J M G STEEL CORP

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License #1057141 · MORENO VALLEY

Active

J M I STEEL INC

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License #709127 · SUN VALLEY

Active

J M L STEEL CONTRACTORS INC

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License #1081939 · MENIFEE

Active

J N A BUILDERS INC

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License #942926 · LOS ANGELES

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.