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C51

C51 Structural Steel Contractors in California - Page 7

1,683 CSLB C51 license records for California (Page 7 of 34)

CSLB C51 License Scope

Structural steel contractors for steel frame construction.

1,683

Total Contractors

1,559

Active Licenses

185

Federal Records

Run CSLB License Lookup

C51 Structural Steel Contractor License Records

Showing contractors 301-350 of 1,683

APEX ELECTRIC & AIR

Clear

License #825156 · SAN FRANCISCO

Active

APEX INTEGRATORS INC

Clear

License #891173 · BAKERSFIELD

Active

APEX STEEL BUILDINGS

Clear

License #1150578 · LINCOLN

Active

APEX STEEL INC

Clear

License #1051065 · CHICO

Active

APPROVED EQUAL ENTERPRISES

Clear

License #751548 · SAN BERNARDINO

Contr Bond Susp

ARB INC

Clear

License #194079 · IRVINE

Active

ARCHANGEL FABRICATION STRUCTURAL STEEL SERVICE

Clear

License #1099744 · VISALIA

Active

ARELLANO ALBERTO

Clear

License #1080928 · COVINA

Contr Bond Susp

ARETE IRONWORKS

Clear

License #1127953 · IRVINE

Active

ARIZONA SKYLINE STEEL INC

Clear

License #790298 · GILBERT

Active

ARMOR STEEL BUILDERS LLC

Clear

License #1152342 · MADERA

Active

ARREOLA'S STRUCTURAL STEEL

Clear

License #1028192 · LOS ANGELES

Active

ARROW SIGN CO

Clear

License #314794 · OAKLAND

Active

ARROWHEAD STEEL

Clear

License #270209 · BLOOMINGTON

Active

ARTISAN STEEL

Clear

License #894426 · SUN VALLEY

Active

ARTIST UNIVERSAL STEEL INC

Clear

License #1063601 · CHATSWORTH

Active

ARVEL STEEL

Clear

License #1018298 · WHITTIER

Active

ASC FABRICATORS INC

Clear

License #1097809 · NORTH HOLLYWOOD

Active

ASHTONCO LLC

Clear

License #1058186 · PIEDMONT

Active

ASIA GENERAL CONTRACTORS INC

Clear

License #932915 · COMPTON

Active

ASTRO INVESTMENT & CONSTRUCTION

Clear

License #1065731 · LOS ANGELES

Active

ATC WELDING & FABRICATING

Clear

License #1093224 · LOS ANGELES

Active

ATLAS IRON WORKS

Clear

License #964621 · MONTEBELLO

Active

ATLAS STEEL

Clear

License #1051925 · LINCOLN

Contr Bond Susp

ATOMIC STEEL INC

Clear

License #1092181 · GLENDALE

Contr Bond Susp

ATWATER METAL FABRICATION INC

Clear

License #1103811 · ATWATER

Active

AUBRY LLOYD W CO INC

Clear

License #213261 · HAYWARD

Active

AUSSIE INDUSTRIAL

Clear

License #872120 · MIDWAY CITY

Contr Bond Susp

AVA STEEL

Clear

License #1160436 · SUISUN CITY

Active

AVALOS ENTERPRISES INC

Clear

License #1133765 · TURLOCK

Active

AVILA RAMON

Clear

License #1000319 · SANTA ROSA

Active

AYALA'S STRUCTURAL WELDING & STEEL FABRICATION

Clear

License #931871 · PERRIS

Work Comp Susp

AYERS MICHAEL CHARLES

Clear

License #549443 · ORANGEVALE

Active

AYSA STRUCTURE INC

Clear

License #1004822 · LA PUENTE

Work Comp Susp

AZI STEEL INC

Clear

License #1001295 · CANOGA PARK

Active

AZTLAN ORNAMENTAL IRON FAB

Clear

License #471241 · STOCKTON

Active

AZTLAN STEEL FABRICATION INC

Clear

License #1131539 · EL CAJON

Active

B & H CONSTRUCTION

Clear

License #675188 · LUCERNE VALLEY

Contr Bond Susp

B & L IRONWORKS INC

Clear

License #1091296 · SYLMAR

Active

B & R DESIGN LLC

Clear

License #1101062 · BENICIA

Active

B & R FABRICATION

Clear

License #839510 · VENTURA

Active

B & R SHEET METAL INC

Clear

License #485181 · EUGENE

Active

B A P K O METAL INC

Clear

License #353005 · ORANGE

Active

B A S ENGINEERING INC

Clear

License #884768 · RANCHO CUCAMONGA

Active

B A STEEL & IRON WORKS INC

Clear

License #998832 · ALHAMBRA

Active

B B B STRUCTURAL STEEL INC

Clear

License #1076097 · GARDENA

Active

B E I STEEL INC

Clear

License #844874 · SAN FRANCISCO

Active

B F DEVELOPMENT

Clear

License #924083 · IRVINE

Active

B F STEEL INC

Clear

License #742057 · HARBOR CITY

Active

B P IRON INC

Clear

License #1062836 · CHINO

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 1,683 CSLB C51 license records for structural steel contractors. 93% 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.