Location and Projects
National Building Specialties Construction
National Building Specialties LLC, 2001 Clayton Rd, Concord, CA (Employees: Kenneth Raymond Ruester, Kenneth Ruester, and Nbs Holdco Llc) holds a Construction Contractor, Construction Contractor license and 1 other license according to the Washington 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 National Building Specialties LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
National Building Specialties LLC Services
National Building Specialties LLC Contact Information
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Building Permits by National Building Specialties LLC
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National Building Specialties LLC License info
Verified License
| License # | NATIOBS774C3 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for National Building Specialties LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1101865 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for National Building Specialties LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Insured
| Insurer | Zurich American Ins Co |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $100,000 |
Insured
| Workers Comp Provider | First Liberty Insurance Corporation |