Updated: Feb 04, 2026
Location
Address
PO BOX 1951, Danville, CA, 94526
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Caltron Groups Construction
Caltron Groups Inc, Danville, Po Box 1951, Danville, CA (Employees: Emily Ngan Ha Tang and John Yao Chang) holds a General Building license according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Caltron Groups Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Caltron Groups Inc Services
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Caltron Groups Inc Contact Information
Phone Number: (925) 575-7376
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Address: PO BOX 1951, Danville, CA 94526
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Verified License
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Caltron Groups Inc License info
Verified License
| License # | 739477 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Caltron Groups Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Caltron Groups Inc Employees
ET
Emily Ngan Ha Tang
Rmo / Ceo / Pres
JC
John Yao Chang
Officer