Sigma One Construction Inc
● Active — license status verified against CSLB public data as of November 6, 2026
| CSLB license | #1123441 |
|---|---|
| Classifications | A — General Engineering · C-10 — Electrical |
| Office of record | 6296 Magnolia Ave 1074 Riverside, CA 92506 Address as listed in the CSLB record — the office of record, not a service-area claim. |
| Phone (CSLB record) | (909) 260-7660 |
| Contractor bond | $25,000 — Ohio Casualty Insurance Company (the) |
| Workers' comp (CSLB record) | Workers' Compensation Insurance — Security National Insurance Company |
| Business type | Corporation |
| License issued | July 9, 2024 |
| License expires | July 31, 2028 |
Is this your business? Claim this listing to enhance it with your website, photos, and project details.
Data source: CSLB public records as of November 6, 2026. License status can change at any time — verify live at CSLB before signing a contract.