Calco Grading INC (CSLB #1047667)
CSLB #1047667
Rancho Palos Verdes, CA · (310) 938-8117
License status
Active
Expires December 31, 2026 · Issued 2018
Expires December 31, 2026Issued December 7, 2018
BondContractor bond
$25,000
American Contractors Indemnity Co.
Workers' comp
On filePolicy on file
State Compensation Ins. Fund · to Dec 9, 2026State Compensation Ins. Fund Runs to December 9, 2026
ClassesClassifications
A General engineering · HAZ
FROM THE CSLB FILE DATED NOV 6, 2026
Status can change the same day. We don't approve contractors; this is the state's public file.
Check this license at CSLB ↗CSLB file dated NOV 6, 2026 · Status can change the same day · Check at CSLB ↗
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Caitlin Danielle| Cosgrove Caitlin Danielle D'ambrosi
Role: Chief executive officer, president
–
Michael Lloyd Pedersen
Role: Officer
–
Vincent Nicholas Dambrosi
Role: Responsible managing officer
Qualifies: A, HAZ
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The full record
- Business address
- 28625 S WESTERN AVE # 229, Rancho Palos Verdes, CA 90275
- Phone
- (310) 938-8117
- Bond
- American Contractors Indemnity Company · $25,000
- Workers' comp
- State Compensation Insurance Fund · policy 9391680 · Dec 9, 2025 to Dec 9, 2026
About this license
Calco Grading INC of Rancho Palos Verdes, CA holds California contractor license #1047667 in A — General engineering and HAZ. The business phone on the license is (310) 938-8117. The license was issued December 7, 2018 and expires December 31, 2026, and the CSLB file lists it as active. Its contractor bond of $25,000 is with American Contractors Indemnity Company. Workers' compensation is with State Compensation Insurance Fund, policy dates December 9, 2025 – December 9, 2026. People on the license include Caitlin Danielle| Cosgrove Caitlin Danielle D'ambrosi (Chief Executive Officer/President), Michael Lloyd Pedersen (Officer), and Vincent Nicholas Dambrosi (Responsible Managing Officer).