California contractor license
THE MARK-COSTELLO CO
- C-61 / D21 Machinery And Pumps
THE MARK-COSTELLO CO is a C-61 / D21 Machinery And Pumps contractor in Paramount, Los Angeles County, licensed in California for 40 years (since 1986). As of Apr 10, 2026, the license is active with an expiration date of Jun 30, 2028 on record and a license bond is on file.
THE MARK-COSTELLO COC-61 / D21 Machinery And Pumps · checked Apr 10, 2026
ActiveLicense number#493626
Licensed sinceJun 18, 1986
Years licensed40 years
Expiration on recordJun 30, 2028
City and countyParamount, Los Angeles County
License bondOn file
ProjectsNone on file
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Apr 10, 2026.