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California contractor license
Independent Construction Company
Independent Construction Company of Concord holds California license 215611 (A General Engineering, C12 Earthwork and Paving, HAZ Hazardous Substance Removal Certification). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jul 31, 2027.
Doing business as MC Cosker D A Construction Co.
Licensed 63 years, longer than 98% of 319 active Concord general contractors.
Active
Independent Construction Company, Concord
- License
- 215611
- Class
- A General Engineering; C12 Earthwork and Paving; HAZ Hazardous Substance Removal Certification
- Expires
- Jul 31, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Apr 1, 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
- $25,000Harco National Insurance Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredArch Insurance Company, from Apr 1, 2026, to Apr 1, 2027
Who is on this license?
- Officer
- Ron F. NooteboomSince Aug 23, 2019
- Officer
- Douglas P. GriffithSince Feb 3, 2021
- Officer
- Mark A. ChaddockSince Jan 14, 2026
- Officer
- Zachary P. NeuSince Jan 23, 2026
- Responsible managing officer, CEO and president
- Brian C. Mc CoskerSince Jul 20, 1989
- CEO and president
- Eric R. McCoskerSince Oct 29, 2020
- Responsible managing employee
- Kevin B. Mc CoskerSince Apr 3, 2001
What work does this license cover?
Issued Feb 28, 1963.
- A General Engineering
- C12 Earthwork and Paving
- HAZ Hazardous Substance Removal Certification
Which other Concord businesses hold A General Engineering?
- Swinerton BuildersLicensed since 1929
- ConcoLicensed since 1961
- Bay Cities Paving & Grading IncLicensed since 1965
- Lescure Company IncLicensed since 1967
- Seeno Albert D Construction CoLicensed since 1969
General Contractors in ConcordCalifornia general contractors
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- 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.
- 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
- Don't sign or pay a deposit until the CSLB shows the license active again.
- 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.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Nov 1, 2026)
- Contractors State License Board (CSLB)