Sign contractors in Petaluma, CA

2 licenses with the C-45 classification list Petaluma (Sonoma County) as their address with the state, 2 of them active. Active licenses with nothing flagged come first.

• ✓Johnston Sign Company IncC-45 · #609593 Petaluma · Sonoma County Active
• ✓Petaluma Sign CompanyC-45 · #833377 Petaluma · Sonoma County Active

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