4-Mac, B General Building Contractor in San Francisco, CA
4-Mac operating as a sole owner holds an active California contractor license (CSLB #1145596), valid through Oct 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in San Francisco, in San Francisco County, California.
- License Number
- 1145596
- Issued
- Oct 28, 2025
- Status
- CLEAR
- Expires
- Oct 31, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67665789
- Effective
- Oct 20, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Sep 18, 2025
- Expires
- —
Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is 4-Mac licensed in California?
Yes. 4-Mac holds California Contractors State License Board license number 1145596, which is active and in good standing. The license was first issued on October 28, 2025. It is valid through October 31, 2027.
What does 4-Mac specialize in?
4-Mac is licensed for one CSLB classification: B General Building Contractor.
Where is 4-Mac headquartered?
4-Mac is headquartered at 256 Waterville Street, San Francisco, CA 94124, in San Francisco County, California.
Does 4-Mac have an active surety bond on file with CSLB?
Yes. 4-Mac has an active California contractor surety bond filed with Western Surety Company.
Does 4-Mac carry workers' compensation coverage?
4-Mac reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify 4-Mac's contractor license?
You can verify 4-Mac's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1145596.
- WC coverage startsSep 18, 2025
- Bond activeOct 20, 2025
- License issuedOct 28, 2025
- License expiresOct 31, 2027
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