California contractor licence #621440

Larsen Energy Systems INC

Larsen Energy Systems INC holds California contractor licence 621440 (HVAC (Heating, Ventilating and Air-Conditioning)) in Santa Rosa, Sonoma County. Status: Suspended · expires Dec 31, 2026.

Suspendedlicence status

2026-12expires Dec 31, 2026

$25,000contractor's bond

Insuredworkers' comp

What this means

The licence is suspended because the California Secretary of State suspended the business entity. A suspended licence cannot be used to contract for work until CSLB lifts the suspension.
It expires in 54 days (Dec 31, 2026). California licences renew every two years; work done after expiry without renewal is unlicensed.
Contractor's bond: $25,000 with Atlantic Specialty Insurance Company. The bond is there to pay consumers and workers harmed by licence-law violations; it is not liability insurance and it does not guarantee the work.
Workers' comp: Workers' Compensation Insurance with Berkshire Hathaway Direct Insurance Company, policy through Dec 13, 2026.
Our records show 1 change to this licence since we started tracking the CSLB file; see the change history below.

Watch this licence: $9/month. We email you when CSLB's file shows a change to this licence's status, bond, workers' comp or expiry. Checked every Monday and Thursday. Cancel any time.

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Licence details

Licence number	621440
Business name (as CSLB lists it)	LARSEN ENERGY SYSTEMS INC
Business type	Corporation
Status	Suspended (CSLB: SOS Suspension)
Issued	Jun 6, 1991
Reissued	Jul 12, 2011
Expires	Dec 31, 2026
City / county / ZIP	Santa Rosa / Sonoma / 95404
Business phone	(707) 486 3757
Contractor's bond surety	Atlantic Specialty Insurance Company
Bond amount	$25,000
Bond number	800233554
Bond effective	Nov 20, 2025
Workers' comp	Workers' Compensation Insurance
Workers' comp insurer	Berkshire Hathaway Direct Insurance Company
Workers' comp effective	Dec 13, 2025
Workers' comp expires	Dec 13, 2026
CSLB record last updated	Oct 22, 2026

Classifications

C-20 HVAC (Heating, Ventilating and Air-Conditioning): heating, ventilation and air-conditioning (HVAC) systems · other hvac (heating, ventilating and air-conditioning) contractors in Santa Rosa

Change history

Oct 12, 2026Licence suspended: the California Secretary of State suspended the business entity
Dec 13, 2025Current workers' comp record took effect
Nov 20, 2025Current contractor's bond took effect (Atlantic Specialty Insurance Company)
Dec 5, 2018Licence reactivated
Oct 7, 2016Licence inactivated
Jul 12, 2011Licence reissued
Jun 6, 1991Licence issued

Changes come from comparing successive copies of CSLB's public licence master file (refreshed twice a week) since October 2026, plus the dates printed on the current record.

Need a bond or workers' comp quote?

If this is your licence and you need a contractor's bond, a replacement bond or workers' comp, request quotes from licensed providers. Free, no obligation.

Check the official record (free): CSLB licence 621440 on cslb.ca.gov. Always confirm there before you hire or sign.

Rasengan Data is a private service, not CSLB. This page is built from the public CSLB licence master file as published; it may lag the live CSLB record by a few days. Not legal advice. Is this your licence and something looks wrong? CSLB's record is the source; email rasengan.win@gmail.com about this page.