Licensed General Engineering (A) contractors in Longmont, CA

The California Contractors State License Board (CSLB) lists 3 General Engineering (A) contractors in Longmont, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 7, 2026.

3 contractors

1. Blackledge Marine Services

   Longmont, CA · CSLB #1050534 · as of October 7, 2026
   Active · clear
2. Integrated Water Services INC

   Longmont, CA · CSLB #836211 · as of October 7, 2026
   Active · clear
3. Western Refractory Construction Incorporated

   Longmont, CA · CSLB #600240 · as of October 7, 2026
   Active · clear

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Data sourced from the California Contractors State License Board (CSLB), current as of October 7, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.