Well drilling contractors in San Francisco, CA

5 licenses with the C-57 classification list San Francisco (San Francisco County) as their address with the state, 5 of them active. Active licenses with nothing flagged come first.

• ✓Adept Construction Solutions IncA · B · C-57 · HAZ · #1011699 San Francisco · San Francisco County Active
• ✓Aremtech IncA · ASB · B · C-4 +10 · #795570 San Francisco · San Francisco County Active
• ✓Malcolm Drilling Company IncA · C-57 · C-61/D-9 · #259543 San Francisco · San Francisco County Active
• ✓Malcolm/silverado A Joint VentureA · ASB · B · C-21 +3 · #1004080 San Francisco · San Francisco County Active
• ✓Modern Technology Resources IncA · B · C-27 · C-36 +2 · #965267 San Francisco · San Francisco County Active

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