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State files updated Oct 31, 2026
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California contractor license

Nsi Corporation

Nsi Corporation of Redondo Beach holds California license 817402 (B General Building, C7 Low Voltage Systems, C10 Electrical). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Feb 28, 2027.

Licensed 23 years, longer than 77% of 15,216 active California electrical contractors.

Active

  • Workers' comp ends Nov 12, 2026 (12 days)

Nsi Corporation, Redondo Beach

  • Bond has a cancellation date on file: Oct 29, 2026.
License
817402
Class
B General Building; C7 Low Voltage Systems; C10 Electrical
Expires
Feb 28, 2027
Bond
$25,000
Workers' comp
Insured to Nov 12, 2026

CSLB file dated Oct 31, 2026

From the CSLB file dated Oct 31, 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 Oct 31, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000Western Surety Company, from Jan 1, 2023, continuous, cancel date Oct 29, 2026
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredEmployers Preferred Insurance Company, from Nov 12, 2025, to Nov 12, 2026

Who is on this license?

Responsible managing officer, CEO and president
Jeffrey J. GinsburgSince Feb 19, 2003

What work does this license cover?

Issued Feb 19, 2003.

A cancellation date is on file for a bond or policy. Ask for a current certificate before work starts.

Which other Redondo Beach businesses hold B General Building?

California electrical contractorsGeneral Contractors in Redondo BeachCalifornia 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, Oct 31, 2026)
  2. Contractors State License Board (CSLB)