HAMILTON TREE SERVICE INC
California contractor license #699865 · Martinez, Contra Costa County
License
- License number
- 699865
- Status
- Clear
- Classifications
- C-27 Landscaping Contractor
- C-61/D-49 Tree Service
- Business type
- Corporation
- Issued
- Dec 6, 1994
- Expires
- Aug 31, 2028
- Workers' compensation
- Workers' Compensation Insurance — Southern Insurance Company
- Contractor's bond
- $25,000 — American Contractors Indemnity Company
- DIR public works registration
- Registered through Jun 30, 2027
From the California Contractors State License Board (CSLB) public license file, last updated Jul 13, 2026. Verify license #699865 on CSLB's License Check.
California public works
HAMILTON TREE SERVICE INC appears on 16 public works projects registered with the California Department of Industrial Relations, 9 of them as the prime contractor, for 11 awarding bodies between 2023 and 2026. Projects it led total $2,137,440 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Oct 5, 2026 | Miller Knox Tree RemovalParks, landscape & fields | East Bay Regional Park District - ASD | Prime | $40,000 |
| Jul 1, 2026 | Tree ServicesParks, landscape & fields | San Jose Unified School District | Prime | $24,900 |
| Jun 25, 2026 | Albany Hill Taft St Tree RemovalsParks, landscape & fields | City of Albany | Prime | $50,520 |
| Jun 22, 2026 | UCB Defensible Space 26-27Parks, landscape & fields | UC Berkeley Facility Services | Prime | $177,000 |
| Mar 18, 2026 | Bryte Park Master Plan ImplementationParks, landscape & fields | The City of West Sacramento | Subcontractor | $48,076,000 |
| Nov 12, 2025 | HF Phase 2 Tree RemovalParks, landscape & fields | City of Walnut Creek | Prime | $34,600 |
| Oct 21, 2025 | BART 6M3797 On-Call Emergency Tree MaintParks, landscape & fields | Bay Area Rapid Transit District | Prime | $98,000 |
| Apr 17, 2025 | Cal Beach Volleyball ComplexParks, landscape & fields | University of CA-Berkeley | Prime | $36,600 |
| Feb 14, 2025 | Tilden - Various Locations - 041MParks, landscape & fields | East Bay Regional Park District - MAST | Prime | $24,300 |
| Nov 12, 2024 | Fay Hill, Rheem, Scenic East PPPaving & streets | EBMUD Construction Div | Subcontractor | $15,981,900 |
| Oct 8, 2024 | San Leandro Creek Tree ManagementParks, landscape & fields | Alameda County Public Works Agency | Prime | $1,651,520 |
| May 28, 2024 | East of Hills Facilities Demo/ImprovWater | EBMUD Construction Div | Subcontractor | $18,216,035 |
| Feb 29, 2024 | BART 6M3705 On-Call Hazardous Tree RemovElectrical, low voltage & AV | Bay Area Rapid Transit District | Subcontractor | — |
| Oct 26, 2023 | Sibley - 157MParks, landscape & fields | East Bay Regional Park District - MAST | Subcontractor | — |
| Aug 9, 2023 | BECHTEL ENGINEERING CENTER RENOVATION ANParks, landscape & fields | University of CA-Berkeley | Subcontractor | — |
| Apr 3, 2023 | Upper San Leandro Water Treatment PlantWater | EBMUD Construction Div | Subcontractor | — |
Most recent 16 of 16. 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
- EBMUD Construction Div · 3 projects
- Bay Area Rapid Transit District · 2 projects
- University of CA-Berkeley · 2 projects
- East Bay Regional Park District - MAST · 2 projects
- The City of West Sacramento · 1 project
- East Bay Regional Park District - ASD · 1 project
- San Jose Unified School District · 1 project
- City of Albany · 1 project
- City of Walnut Creek · 1 project
- Alameda County Public Works Agency · 1 project
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