Licensed General Engineering (A) contractors in Columbia, CA

The California Contractors State License Board (CSLB) lists 11 General Engineering (A) contractors in Columbia, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

11 contractors

1. Clean Infusion LLC

   Columbia, CA · CSLB #1105481 · as of June 27, 2026
   Active · clear
2. E C F INC

   Columbia, CA · CSLB #818255 · as of June 27, 2026
   Active · clear
3. Luther Engineering

   Columbia, CA · CSLB #607189 · as of June 27, 2026
   Active · clear
4. Doug Perry Excavating INC

   Columbia, CA · CSLB #513848 · as of June 27, 2026
   Active · clear
5. Pullman Power LLC

   Columbia, CA · CSLB #1025201 · as of June 27, 2026
   Active · clear
6. Pullman SST INC

   Columbia, CA · CSLB #866480 · as of June 27, 2026
   Active · clear
7. Brenden Simunaci/simunaci Construction

   Columbia, CA · CSLB #619757 · as of June 27, 2026
   Active · clear
8. Structural Preservation Systems LLC

   Columbia, CA · CSLB #814569 · as of June 27, 2026
   Active · clear
9. Structural Technologies, LLC

   Columbia, CA · CSLB #989353 · as of June 27, 2026
   Active · clear
10. Weller Construction INC

    Columbia, CA · CSLB #429107 · as of June 27, 2026
    Active · clear
11. Willis Construction Company

    Columbia, CA · CSLB #893521 · as of June 27, 2026
    Suspended · workers' comp

See all General Engineering (A) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.