Sign contractors in Diamond Bar, CA

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

• ✓G A N Signs & Graphic IncC-45 · #1008442 Diamond Bar · Los Angeles County Active
• ✓Regional Signs & LightingC-45 · #1036143 Diamond Bar · Los Angeles County Active

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