THE MARK-COSTELLO CO
California contractor license #493626 · Paramount, Los Angeles County
License
- License number
- 493626
- Status
- Clear
- Classifications
- C-61/D-21 Machinery and Pumps
- Business type
- Corporation
- Issued
- Jun 18, 1986
- Expires
- Jun 30, 2028
- Workers' compensation
- Workers' Compensation Insurance — Service American Indemnity Company
- Contractor's bond
- $25,000 — American Contractors Indemnity Company
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Jun 8, 2026. Verify license #493626 on CSLB's License Check.
California public works
THE MARK-COSTELLO CO appears on 3 public works projects registered with the California Department of Industrial Relations, 1 of them as the prime contractor, for 3 awarding bodies between 2022 and 2025. Projects it led total $48,886 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Jul 16, 2025 | Compactor ReplacementOther | University of California - Irvine | Prime | $48,886 |
| Sep 6, 2023 | Mesa Court Residence Hall ExpansionBuildings & facilities | University of California, Irvine - Facilities Management | Subcontractor | — |
| Nov 30, 2022 | Falling Leaves Foundation Medical InnovaOther | UC Irvine | Subcontractor | — |
Most recent 3 of 3. Contract amounts are the whole project's, as the awarding body reported them to DIR (reported since July 2024); a role is "Prime" when the awarding body registered the contractor on the project.
Awarding bodies it works for most
- University of California - Irvine · 1 project
- UC Irvine · 1 project
- University of California, Irvine - Facilities Management · 1 project
Is this your business?
Claim it on Atriam to add your work photos, service area and a booking link, and to run calls, leads, estimates and invoices in one place — free.
Claim this business