Licensed General Engineering (A) contractors in Discovery Bay, CA

The California Contractors State License Board (CSLB) lists 7 General Engineering (A) contractors in Discovery Bay, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 8, 2026.

7 contractors

1. Diablo Excavation & Construction

   Discovery Bay, CA · CSLB #1110240 · as of October 8, 2026
   Active · clear
2. J P O Construction

   Discovery Bay, CA · CSLB #987054 · as of October 8, 2026
   Active · clear
3. Magna Construction INC

   Discovery Bay, CA · CSLB #1136591 · as of October 8, 2026
   Active · clear
4. Robbert Construction Engineering

   Discovery Bay, CA · CSLB #943490 · as of October 8, 2026
   Active · clear
5. SB Construction

   Discovery Bay, CA · CSLB #1127406 · as of October 8, 2026
   Active · clear
6. Terraform Underground PC

   Discovery Bay, CA · CSLB #1144297 · as of October 8, 2026
   Active · clear
7. Williams Grading

   Discovery Bay, CA · CSLB #575798 · as of October 8, 2026
   Active · clear

See all General Engineering (A) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of October 8, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.