Alliant Construction Services INC, B General Building Contractor in Diamond Bar, CA
Alliant Construction Services INC operating as a corporation holds an active California contractor license (CSLB #1061441), valid through Dec 31, 2027. First issued in 2019, the license has been on the CSLB roster for 7 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Insurance Company of the West. The business is based in Diamond Bar, in Los Angeles County, California.
- License Number
- 1061441
- Issued
- Dec 16, 2019
- Status
- CLEAR
- Expires
- Dec 31, 2027
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100473003
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Insurance Company of the West
- Policy Number
- WSA506819903
- Effective
- Oct 28, 2025
- Expires
- Oct 28, 2026
This contractor is verified, with no adverse conditions in the current CSLB record.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Alliant Construction Services INC licensed in California?
Yes. Alliant Construction Services INC holds California Contractors State License Board license number 1061441, which is active and in good standing. The license was first issued on December 16, 2019. It is valid through December 31, 2027.
What does Alliant Construction Services INC specialize in?
Alliant Construction Services INC is licensed for one CSLB classification: B General Building Contractor.
Where is Alliant Construction Services INC headquartered?
Alliant Construction Services INC is headquartered at 556 N Diamond Bar Blvd Ste 200, Diamond Bar, CA 91765, in Los Angeles County, California.
Does Alliant Construction Services INC have an active surety bond on file with CSLB?
Yes. Alliant Construction Services INC has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Alliant Construction Services INC carry workers' compensation coverage?
Yes. Alliant Construction Services INC carries active workers' compensation coverage through Insurance Company of the West.
How do I verify Alliant Construction Services INC's contractor license?
You can verify Alliant Construction Services INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1061441.
- License issuedDec 16, 2019
- Bond activeJan 1, 2023
- WC coverage startsOct 28, 2025
- WC expiresOct 28, 2026
- License expiresDec 31, 2027
- Cyber Construction INC#1118573Northridge·A General Engineering Contractor
- C W Driver Incorporated#102Pasadena·B General Building Contractor
- Pacific Home Builders INC#45839Rolling Hills Estates·B General Building Contractor
- Electro Construction CORP#95881Altadena·B General Building Contractor
- Oltmans Construction CO#86393Whittier·A General Engineering Contractor
- Nicholson Mark#111289Malibu·B General Building Contractor
- In2uitive Builders LLC#112760El Segundo·B General Building Contractor
- Darrow Heating and Air Conditioning CORP#114301North Hollywood·B General Building Contractor
Working a California job with Alliant Construction Services INC, 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 Alliant Construction Services INC? Claim or correct this profile