Location and Projects
Stroer and Graff Engineer
Stroer and Graff Inc, 1830 Phillips Ln, Antioch, CA (Employees: Ann Sandra Creson, Conrad James Stroer, and David Lander Graff) holds a General Engineering license and 1 other license according to the California license board.
Their BuildZoom score of 95 ranks in the top 22% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Stroer and Graff Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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This is a sample of this contractor's permits. Click here to access their complete permit history.
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Stroer and Graff Inc License info
Verified License
| License # | 397082 |
| Status | Active |
| State | California |
| Type | General Engineering |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Stroer and Graff Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 541917 |
| Status | Inactive |
| State | California |
| Type | General Engineering |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Stroer and Graff Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | Ohio Casualty Insurance Company (The) |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Zurich American Insurance Company |