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Licensed Structural Steel Contractors in San Diego, California

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

  • 24licensed structural steel contractors
  • 20active (Clear)
  • 16.7%with a suspension
  • 37.5%workers' comp exempt
  • 7.5 yrsmedian time licensed
  • 83.3%corp / LLC / partnership (16.7% sole owner)
  • 4new in the last 12 months
  • —change tracking began November 1, 2026

There are 24 structural steel contractors based in San Diego in CSLB's current file. 20 (83.3%) have a Clear status as of November 1, 2026.

37.5% report a workers' comp exemption, 9.2 points higher than the statewide figure for structural steel contractors (28.3%), so many of these businesses say they have no employees. The share with a suspension, 16.7%, is 8.7 points higher than the San Diego County rate for the same license (8%).

Experience varies: 41.7% have been licensed 10+ years and 4 are new this year (median 7.5 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 San Diego

  1. Look the company up by name or license number (search San Diego). On the profile, confirm three things: Clear status, the C-51 license for this kind of work, and a contractor's bond on file.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Ask for the pocket license and a photo ID and match the name to your contract. Work of $1,000 or more needs a license (the $1,000 rule), and a down payment can't exceed $1,000 or 10% (down payment rules).

All 24 structural steel contractors in San Diego

San Diego 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 San Diego
Business nameLicense #StatusYearsWorkers' compBond
International Iron Products 639405 Clear 34 Insured On file
D I A S Construction 682098 Clear 32 Exempt On file
Morena Welding INC 721364 Clear 30 Insured On file
Westech Metal Fabrication INC 831804 Clear 22 Insured On file
L O G Steel 910324 Clear 18 Exempt On file
Buildwise INC 940688 Clear 16 Insured On file
Sdstature 990906 Clear 12 Insured On file
Pacific Steel Industries INC 1000401 Clear 11 Insured On file
C M C Steel Construction 1020769 Clear 10 Insured On file
Pacific Coast Erectors LLC 1035377 Clear 8 Insured On file
Structured Steel 1043682 Clear 8 Exempt On file
Gaz Steel Fabrication INC 1081985 Clear 5 Insured On file
Spartan Steel Construction INC 1087125 Clear 4 Insured On file
Sf Metalworks 1116014 Clear 2 Insured On file
Imperial Steel INC 1135002 Clear 1 Insured On file
G Steel INC 1142164 Clear 1 Exempt On file
Trinity Steel Fabricator INC 1149760 Clear <1 Exempt On file
Alarcon Steel Products INC 1151725 Clear <1 Exempt On file
Sts Structures INC 1153728 Clear <1 Insured On file
Knr Steel INC 1163660 Clear <1 Exempt On file
Blue Steel Enterprise 882396 Susp: contractor's bond 20 Exempt On file
Southern Cali Custom Metal Fabrication INC 1063488 Susp: workers' compensation 6 None On file
San Diego Ex Steel 1084065 Susp: workers' compensation 4 None On file
All Around Steel INC 1104476 Susp: contractor's bond 3 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 San Diego?

CSLB's current public file lists 24 structural steel contractors with a San Diego mailing address. 20 have a Clear status, and 70.8% 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?

CSLB issues the C-51 Structural Steel Contractor classification for this work. In San Diego County, 83.3% of San Diego's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work rule).

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

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among San Diego structural steel contractors, 37.5% are exempt (no employees), 54.2% insured and 8.3% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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