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Licensed Structural Steel Contractors in Los Angeles, California

Updated November 1, 2026 from CSLB's public license file · C-51 Structural Steel Contractor

  • 43licensed structural steel contractors
  • 42active (Clear)
  • 2.3%with a suspension
  • 34.9%workers' comp exempt
  • 9.4 yrsmedian time licensed
  • 79.1%corp / LLC / partnership (20.9% sole owner)
  • 0new in the last 12 months
  • —change tracking began November 1, 2026

CSLB's public data lists 43 structural steel contractors with a mailing address in Los Angeles, and 42 of them (97.7%) show a Clear primary status.

The share with a suspension, 2.3%, is 4.7 points lower than the Los Angeles County rate for the same license (7%). 34.9% report a workers' comp exemption, 6.6 points higher than the statewide figure for structural steel contractors (28.3%), so many of these businesses say they have no employees.

Experience varies: 48.8% have been licensed 10+ years and 0 are new this year (median 9.4 years, vs 15.3 statewide).

In California this work generally calls for the C-51 Structural Steel Contractor license (or a B license when it is part of a larger multi-trade job). See the C-51 Structural Steel Contractor guide for what the license covers.

How to check a structural steel contractor's license in Los Angeles

  1. Open the structural steel contractor's profile from the table below (or search Los Angeles listings by name). Check that C-51 appears among its classifications and that the primary status reads Clear. What C-51 covers.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed structural steel contractor is required by law. See the $1,000 rule.

All 43 structural steel contractors in Los Angeles

Los Angeles structural steel contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed structural steel contractors in Los Angeles
Business nameLicense #StatusYearsWorkers' compBond
King Wire Partitions INC 410475 Clear 45 Insured On file
V I P Iron Works INC 660816 Clear 33 Insured On file
Sea Pac Engineering INC 674701 Clear 33 Insured On file
Pacific Coast Ironworks INC 688832 Clear 32 Insured On file
United Steel Corporation 700700 Clear 31 Insured On file
Caltron Construction INC 725052 Clear 30 Insured On file
Coastline Steel 749215 Clear 28 Insured On file
Hi - Tech Iron Works 767823 Clear 27 Insured On file
Hollywood Welding INC 817679 Clear 23 Insured On file
Mas Iron CO 817042 Clear 23 Insured On file
Building Constuction & Steel Services 824092 Clear 23 Exempt On file
Stanby Builders 867853 Clear 21 Insured On file
Gamerberg Ruben 868230 Clear 20 Exempt On file
J N A Builders INC 942926 Clear 16 Insured On file
Suri Steel INC 945739 Clear 16 Insured On file
M B Welding 959367 Clear 15 Exempt On file
Kns Steel INC 969046 Clear 14 Insured On file
V P M Iron Works INC 998093 Clear 12 Insured On file
Glendale Iron INC 1001708 Clear 11 Insured On file
Iron Works On Time INC 1014223 Clear 10 Insured On file
Unix Construction INC 1020144 Clear 10 Insured On file
Arreola's Structural Steel 1028192 Clear 9 Insured On file
Kmbj Structural Steel 1044441 Clear 8 Insured On file
Scott Steel Corporation 1049258 Clear 7 Exempt On file
Alcatraz Iron INC 1057911 Clear 7 Insured On file
Cal Con Steel INC 1060124 Clear 7 Insured On file
Los Angeles Iron Works 1062935 Clear 6 Exempt On file
Astro Investment & Construction 1065731 Clear 6 Insured On file
Agramon's Iron Works 1076553 Clear 5 Exempt On file
Kee INC 1084596 Clear 4 Exempt On file
Pipe Doctor Rooter & Plumbing Company 1084191 Clear 4 Exempt None listed
Atc Welding & Fabricating 1093224 Clear 4 Insured On file
Kim James Chong 1102156 Clear 3 Exempt On file
American Strong Foundation 1118425 Clear 2 Insured On file
Mantis Construction Corporation 1122860 Clear 2 Insured On file
Mona's Structural Steel INC 1121401 Clear 2 Exempt On file
No Limit Steel 1126792 Clear 2 Insured On file
R C Steel LLC 1130429 Clear 1 Insured On file
Builders Modular Depot INC 1133865 Clear 1 Exempt On file
Feral Studio LLC 1136365 Clear 1 Exempt On file
Hye Sun Choi 1139023 Clear 1 Exempt On file
Hye Welding LLC 1138249 Clear 1 Exempt On file
Metonix INC 1138753 Susp: contractor's bond 1 Exempt On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed structural steel contractors are in Los Angeles?

CSLB's current public file lists 43 structural steel contractors with a Los Angeles mailing address. 42 have a Clear status, and 88.4% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a structural steel contractor need in California?

In California this work generally calls for the C-51 Structural Steel Contractor license (or a B license when it is part of a larger multi-trade job). Any job of $1,000 or more in labor and materials needs a licensed contractor. Read our guide to the $1,000 rule.

How do I check a structural steel contractor's workers' comp?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In Los Angeles, 65.1% of structural steel contractors list a policy, 34.9% claim an exemption and 0% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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