KOIOS ENGINEERING INC
California contractor license #1079921 · San Francisco, San Francisco County
License
- License number
- 1079921
- Status
- Clear
- Classifications
- A General Engineering Contractor
- Business type
- Corporation
- Issued
- Aug 18, 2021
- Expires
- Aug 31, 2027
- Workers' compensation
- Workers' Compensation Insurance — Continental Insurance Company (The)
- 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 Dec 16, 2025. Verify license #1079921 on CSLB's License Check.
California public works
KOIOS ENGINEERING INC appears on 28 public works projects registered with the California Department of Industrial Relations, 17 of them as the prime contractor, for 12 awarding bodies between 2023 and 2026. Projects it led total $48,966,542 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Sep 1, 2026 | Stormwater & Utility Improvements ProjecStorm drain & flood control | City of MIllbrae | Prime | $197,565 |
| Apr 14, 2026 | Tulare Drive Water Line ReplacementWater | City of Vacaville | Prime | $553,140 |
| Mar 24, 2026 | Midway Road Water Line ProjectWater | City of Vacaville | Prime | $8,415,550 |
| Mar 5, 2026 | Adeline St, Woolsey St, Benvenue AvePaving & streets | CITY OF BERKELEY | Prime | $3,574,445 |
| Feb 24, 2026 | San Pablo Ave., Sacramento St., Univ. AvSewer & wastewater | CITY OF BERKELEY | Prime | $4,660,295 |
| Feb 24, 2026 | San Pablo Ave. Sacramento St, Univ. AveSewer & wastewater | CITY OF BERKELEY | Prime | $4,660,295 |
| Sep 19, 2025 | BROADMOOR DRAINAGE REPAIR AT LARCHMONTStorm drain & flood control | San Mateo County Department of Public Works | Subcontractor | $60,893 |
| Sep 18, 2025 | 2025-2026 Water Main Replacement ProjectWater | city of martinez | Prime | $3,160,938 |
| Aug 26, 2025 | Southwest Expressway Sanitary Sewer ImprSewer & wastewater | City of San Jose | Prime | $4,420,145 |
| Apr 29, 2025 | San Clemente Road Culvert Lining ProjectStorm drain & flood control | San Mateo County Department of Public Works | Subcontractor | $8,625 |
| Nov 28, 2024 | Small Trash Capture Device Install Ph.1Other | City of San Jose | Prime | $1,887,072 |
| Nov 12, 2024 | Stinson / W Monte Vista Sewer & Wtr ImpSewer & wastewater | City of Vacaville | Prime | $3,388,583 |
| Nov 12, 2024 | Marina Vista Sewer Replacement & PavemenSewer & wastewater | City of MIllbrae | Prime | $1,687,393 |
| Nov 12, 2024 | Downtown Utility Improvements ProjectSewer & wastewater | City of Vacaville | Prime | $6,954,000 |
| Oct 28, 2024 | SD, SC, Guadalupe, and St. Francis WaterWater | City of Daly City | Prime | $1,555,242 |
| Sep 24, 2024 | Bayberry Main ReplacementWater | City of San Jose | Prime | $428,625 |
| Jul 9, 2024 | 2024 Sewer Rehabilitation ProjectSewer & wastewater | Vallejo Flood and Wastewater District | Prime | $1,743,889 |
| Jun 8, 2024 | Military West Water Main ReplacementWater | — | Subcontractor | — |
| May 14, 2024 | MRP Trash Capture FY 2023Other | CITY OF BERKELEY | Prime | $418,500 |
| Apr 3, 2024 | 2024 Sewer ImprovementsSewer & wastewater | City of Mill Valley | Subcontractor | — |
| Mar 25, 2024 | Urgent Sewer Repair FY 2024Sewer & wastewater | CITY OF BERKELEY | Subcontractor | — |
| Feb 11, 2024 | The Alameda, Keeler Ave., Euclid, et al.Sewer & wastewater | CITY OF BERKELEY | Subcontractor | — |
| Nov 8, 2023 | VMC-SLRH Medical Office Building ReplaceBuildings & facilities | County of Santa Clara, Facilities and Fleet | Subcontractor | — |
| Aug 9, 2023 | Meadowsweet Trunk Rehabilitation - PhaseSewer & wastewater | Town of Corte Madera | Subcontractor | — |
| Jul 31, 2023 | VMC-SLRH Air Handling ReplacementsOther | County of Santa Clara, Facilities and Fleet | Subcontractor | — |
Most recent 25 of 28. 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
- CITY OF BERKELEY · 6 projects
- City of Vacaville · 4 projects
- County of Santa Clara, Facilities and Fleet · 3 projects
- City of San Jose · 3 projects
- City of MIllbrae · 2 projects
- City of Mill Valley · 2 projects
- San Mateo County Department of Public Works · 2 projects
- city of martinez · 1 project
- Town of Corte Madera · 1 project
- City of Daly City · 1 project
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