Structural steel contractors in Sonoma, CA

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

• ✓Ed Sammon ConstructionB · C-51 · #418048 Sonoma · Sonoma County Active
• ✓Lanning Steel DesignC-51 · #1118025 Sonoma · Sonoma County Active
• ✓Organic Metal Construction CorpC-51 · #1058786 Sonoma · Sonoma County Active

Source: CSLB license file, Nov 8, 2026All trades in Sonoma