Structural steel contractors in Walnut, CA

3 licenses with the C-51 classification list Walnut (Los Angeles County) as their address with the state, 3 of them active. Active licenses with nothing flagged come first.

• ✓J & L Structural Steel Welding IncC-51 · #747271 Walnut · Los Angeles County Active
• ✓Soria SteelC-51 · #1128891 Walnut · Los Angeles County Active
• ✓United Riggers & Erectors IncA · B · C-8 · C-36 +2 · #245451 Walnut · Los Angeles County Active

Source: CSLB license file, Nov 6, 2026All trades in Walnut