License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
WC exempt
No employees — exempt from requirement
Clean record
No complaints or disciplinary actions
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CALTRON GROUPS INC
- License Number
- 739477
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- PO BOX 1951 DANVILLE, CA, 94526 Contra Costa County
- Phone
- (925) 575 7376
License Dates
Issued
08/19/1997
Expires
08/31/2027
Expires in 17 months
CSLB Last Updated
07/23/2025
License Classifications
Personnel & Officers
CHANG JOHN YAO
Officer
TANG EMILY NGAN HA| TANG NGAN HA
Responsible Managing Officer/Chief Executive Officer/President
Contractor Bond
Amount: $25,000
Company: HUDSON INSURANCE COMPANY
Bond #30117672
Effective: 05/27/2023
Workers' Compensation
Owner/officer with no employees — exempt from WC requirement
CSLB designation: Exempt
Complaints & Disciplinary History
This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.
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California licensing guide →Data sourced from official state licensing board records. Always confirm critical information directly with the state board.
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