Grassrock Corporation, B General Building Contractor in Fremont, CA
Grassrock Corporation operating as a corporation holds an active California contractor license (CSLB #1058407), valid through Sep 30, 2027. First issued in 2019, the license has been on the CSLB roster for 7 years. It carries 2 CSLB classifications: B General Building Contractor and C-20 HVAC Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and a previously-filed workers' compensation policy with Berkshire Hathaway Direct Insurance Company that is no longer active. The business is based in Fremont, in Alameda County, California.
- License Number
- 1058407
- Issued
- Sep 23, 2019
- Status
- CLEAR
- Expires
- Sep 30, 2027
- Entity
- Corporation
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800211074
- Effective
- Oct 6, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Berkshire Hathaway Direct Insurance Company
- Policy Number
- PCA9VJNZMX
- Effective
- Jun 28, 2025
- Expires
- Jun 28, 2026
This contractor has a compliance issue in its public CSLB record:
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Grassrock Corporation licensed in California?
Yes. Grassrock Corporation holds California Contractors State License Board license number 1058407, which is active and in good standing. The license was first issued on September 23, 2019. It is valid through September 30, 2027.
What does Grassrock Corporation specialize in?
Grassrock Corporation is licensed for 2 CSLB classifications: B General Building Contractor and C-20 HVAC Contractor.
Where is Grassrock Corporation headquartered?
Grassrock Corporation is headquartered at 39111 Pased Padre Pkwy,suite 213, Fremont, CA 94538, in Alameda County, California.
Does Grassrock Corporation have an active surety bond on file with CSLB?
Yes. Grassrock Corporation has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Grassrock Corporation carry workers' compensation coverage?
Grassrock Corporation has a previously-filed workers' compensation policy with Berkshire Hathaway Direct Insurance Company that is no longer active.
How do I verify Grassrock Corporation's contractor license?
You can verify Grassrock Corporation's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1058407.
- License issuedSep 23, 2019
- WC coverage startsJun 28, 2025
- Bond activeOct 6, 2025
- WC expiredJun 28, 2026
- License expiresSep 30, 2027
- D W Nicholson Corporation#68847Hayward·A General Engineering Contractor
- Wes-CO Industries#246673San Leandro·A General Engineering Contractor
- Van-Mulder Sheet Metal INC#279981Hayward·B General Building Contractor
- Mc Guire and Hester#95879Oakland·A General Engineering Contractor
- Anderson Eric F Incorporated#82540San Leandro·B General Building Contractor
- Fitzmaurice J H INC#111689Oakland·A General Engineering Contractor
- Fidelity Roof Company#156017Oakland·B General Building Contractor
- Ardenbrook INC#171656Fremont·B General Building Contractor
Working a California job with Grassrock Corporation, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Grassrock Corporation? Claim or correct this profile