Contractor Lookout is an independent website, not affiliated with CSLB or the State of California. This record comes from CSLB's public data file dated November 1, 2026 and may be out of date. Not a consumer report under the FCRA.
Allison-Sierra INC: CSLB License #507261
Source: CSLB public data · Updated November 1, 2026 · CSLB's record
Verify live status on CSLB's Instant License Check before hiring.
Verify live on CSLB Report an error / remove my address
The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.
License details
- License number
- 507261
- Primary status
- CLEAR · what this means
- Business type
- Corporation
- Issued
- March 13, 1987 (39 years)
- Expires
- March 31, 2027
- Classifications
- A General Engineering Contractor
C-57 Well Drilling Contractor
HAZ Hazardous Substance Removal Certification - Mailing address
- 3923 Bootjack Lane, Mariposa, CA, 95338
- Phone
- (209) 966-4082
Workers' compensation
- Type
- Leasing Firm, Temp Agency, etc
- Insurer
- Ace American Insurance Company
- Policy number
- C7526480A
- Effective
- October 1, 2026
- Expires
- October 1, 2027
Confirm coverage with CSLB's insurer search. How to check workers' comp.
Contractor's bond
- Surety
- Nationwide Mutual Insurance Company
- Bond number
- 7900395311
- Amount
- $25,000
- Effective
- January 1, 2023
Bond of qualifying individual
CSLB's public file lists no qualifier bond for this license. One isn't required when the qualifier owns at least 10% of the business, and some qualifier bonds appear only on CSLB's record.
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
- Licensed general engineering contractors in Mariposa
- Contractors in Mariposa 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.