4D Milling Inc
● Active — license status verified against CSLB public data as of November 6, 2026
| CSLB license | #1138350 |
|---|---|
| Classifications | A — General Engineering |
| Office of record | 39800 Pine Bench Road Oak Glen, CA 92399 Address as listed in the CSLB record — the office of record, not a service-area claim. |
| Phone (CSLB record) | (909) 709-7757 |
| Contractor bond | $25,000 — Western Surety Company |
| Workers' comp (CSLB record) | Workers' Compensation Insurance — National Casualty Company |
| Business type | Corporation |
| License issued | June 3, 2025 |
| License expires | June 30, 2027 |
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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.