Updated: May 27, 2026
Location
Address
2867 GROVE WAY, Castro Valley, CA, 94546
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Top Tier Building Services Construction
Top Tier Building Services Inc, 2867 Grove Way, Castro Valley, CA (Employees: Alireza Oraei, Guojun Xia, and Mohammad Reza Tahmasebi) 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 Top Tier Building Services Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Top Tier Building Services Inc Services
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Top Tier Building Services Inc Contact Information
Phone Number: (510) 415-8993
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Address: 2867 GROVE WAY, Castro Valley, CA 94546
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Verified License
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Top Tier Building Services Inc License info
Verified License
| License # | 1146790 |
| Status | Active |
| State | California |
| Type | General Building |
| Date Issued | 11-24-2025 |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Top Tier Building Services 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 | Nationwide Mutual Insurance Company |
| Bond Value | $25,000 |
Top Tier Building Services Inc Employees
AO
Alireza Oraei
Officer
GX
Guojun Xia
Rmo
MT
Mohammad Reza Tahmasebi
Ceo / President