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California contractor license

Nibbi Bros Inc

Nibbi Bros Inc of San Francisco holds California license 232019 (A General Engineering, ASB Asbestos Certification, B General Building). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Nov 30, 2026.

Licensed 61 years, longer than 99% of 1,412 active San Francisco general contractors.

Active

  • License ends Nov 30, 2026 (29 days)

Nibbi Bros Inc, San Francisco

License
232019
Class
A General Engineering; ASB Asbestos Certification; B General Building
Expires
Nov 30, 2026
Bond
$25,000
Workers' comp
Insured to Apr 2, 2027

CSLB file dated Nov 1, 2026

From the CSLB file dated Nov 1, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the CSLB file dated Nov 1, 2026. Confirm with the board: CSLB license check

What bond, insurance and workers' comp are on file?

Bond
$25,000Safeco Insurance Company Of America, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredInsurance Company Of The West, from Apr 2, 2026, to Apr 2, 2027

Who is on this license?

Responsible managing officer
Sergio J. NibbiSince Mar 16, 1982
CEO and president
Lawrence R. NibbiSince Feb 15, 1965

What work does this license cover?

Issued Feb 15, 1965.

Which other San Francisco businesses hold A General Engineering?

General Contractors in San FranciscoCalifornia general contractors

What should you check before hiring?

What to ask before you hire

  1. Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
  2. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  3. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  4. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  5. Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
  6. Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.

If the license is lapsed

  1. Don't sign or pay a deposit until the CSLB shows the license active again.
  2. Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
  4. Check another contractor. California license lookup

Sources

  1. CSLB License Master (cslb.ca.gov, Nov 1, 2026)
  2. Contractors State License Board (CSLB)