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Professional Telecommunications Services INC: CSLB License #900567
Source: CSLB public data · Updated November 1, 2026 · Official CSLB record
- License expires within 60 days (2026-11-30)
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The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.
License details
- License number
- 900567
- Primary status
- CLEAR · what this means
- Business type
- Corporation
- Issued
- July 20, 2007 (19 years)
- Reissued
- November 14, 2008
- Expires
- November 30, 2026
- Classifications
- C-10 Electrical Contractor
C-28 Lock and Security Equipment Contractor
C-7 Low Voltage Systems Contractor
C-61/D-16 Hardware, Locks and Safes - Mailing address
- 1799 Portola Ave Ste 5, Livermore, CA, 94551
- Phone
- (925) 447 5100
Workers' compensation
- Type
- Workers' Compensation Insurance
- Insurer
- Sentinel Insurance Company LTD
- Policy number
- 34WEABG4C71
- Effective
- June 6, 2026
- Expires
- June 6, 2027
Confirm coverage with CSLB's insurer search. How to check workers' comp.
Contractor's bond
- Surety
- American Contractors Indemnity Company
- Bond number
- 1001230240
- Amount
- $25,000
- Effective
- February 23, 2026
Status history
No changes recorded since we began tracking this license on November 1, 2026. We compare every weekly CSLB file and log changes to status, bonds, workers' comp and classifications here.
Related
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- Licensed contractors in Livermore
- Contractors in Alameda County
- What "CLEAR" means
- How to check a contractor license
Data: CSLB Public Data Portal, file dated November 1, 2026. Status can change at any time. Verify on CSLB's Instant License Check. This site is not a consumer reporting agency under the FCRA; don't use it for employment, credit, insurance or housing decisions about an individual.