EXPLORATION GEOSERVICES INC

California contractor license #484288 · San Jose, Santa Clara County

License

License number
484288
Status
Clear
Classifications
  • C-57 Well Drilling Contractor
Business type
Corporation
Issued
Dec 18, 1985
Expires
Dec 31, 2027
Workers' compensation
Workers' Compensation Insurance — State Compensation Insurance Fund
Contractor's bond
$15,000 — 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 Nov 21, 2025. Verify license #484288 on CSLB's License Check.

California public works

EXPLORATION GEOSERVICES INC appears on 56 public works projects registered with the California Department of Industrial Relations, for 43 awarding bodies between 2018 and 2026.

Most recent public works projects
DateProjectAwarding bodyRoleContract amount
Apr 22, 2026Miramontes Crossing ReplacementBridges & structuresMidpeninsula Regional Open Space DistrictSubcontractor$249,799
Mar 18, 2026Mocho PFAS Treatment PlantWaterAlameda County Flood Control and Water Conservation District, Zone 7Subcontractor$3,817,878
Mar 17, 2026LP Surveying ServicesDesign, inspection & consultingMILLBRAE ELEMENTARY SCHOOL DISTRICTSubcontractor$36,000
Feb 2, 2026Laguna Honda Senior Geotech TestingOtherMayor''s Office of Housing and Community DevelopmentSubcontractor$100,000
Jan 23, 2026P-1277Design, inspection & consultingContra Costa Community College DistrictSubcontractor$1,700,000
Dec 19, 2025LFT Storm Drain Facility RepairStorm drain & flood controlGolden Gate Bridge, Highway and Transportation DistrictSubcontractor$647,902
Nov 3, 2025Foothill Traill Geotechnical InvestOtherHayward Area Recreation and Park DistrictSubcontractor$10,000
Oct 23, 2025Junipero Serra ES TK ProjectBuildings & facilitiesSouth San Francisco Unified School DistrictSubcontractor$35,450
Oct 14, 2025D.W. Food Service Upgrade - Donlon ESBuildings & facilitiesPleasanton Unified School DistrictSubcontractor$29,100
Oct 14, 2025D.W. Food Service Upgrade - WGESHVAC & mechanicalPleasanton Unified School DistrictSubcontractor$25,500
Sep 19, 2025Monte Verde ES TK ProjectBuildings & facilitiesSouth San Francisco Unified School DistrictSubcontractor$27,650
Aug 21, 2025TK Expansion ProjectOtherSan Carlos School DistrictSubcontractor$35,886,824
Aug 20, 2025FES Kitchen GeotechBuildings & facilitiesBurlingame School DistrictSubcontractor$31,190
Aug 4, 2025LES New Building DrillingBuildings & facilitiesBurlingame School DistrictSubcontractor$43,300
Jul 28, 2025Springtown Open Space ProjectParks, landscape & fieldsCity of LivermoreSubcontractor$6,208,025
Jul 8, 2025CIP 302Paving & streetsCity of OakleySubcontractor$274,167
Apr 7, 2025Corporation Way Pump Station and SystemStorm drain & flood controlCity of Palo AltoSubcontractor$9,994,970
Mar 31, 2025SVRP 21kV SwitchgearElectrical, low voltage & AVMonterey One WaterSubcontractor$500,000
Mar 27, 2025ROLLING HILLS MS NEW TRACK & FIELDParks, landscape & fieldsPajaro Valley Unified School DistrictSubcontractor$20,640
Mar 24, 2025San Bruno Retaining WallsBridges & structuresCity of BrisbaneSubcontractor$46,000
Feb 19, 2025Storm Drain Trash CaptureStorm drain & flood controlCity of LivermoreSubcontractor$4,600,000
Feb 12, 2025HH softballOtherSanta Cruz City SchoolsSubcontractor$19,000
Feb 4, 2025Design of Mary-Carson WaterPlant UpgradeOtherCity of SunnyvaleSubcontractor$1,228,556
Dec 3, 2024Energy Conservation ServicesSolar, EV & energyCity of Salinas - (PUB WORKS)Subcontractor$4,774,025
Oct 29, 2024Design of Citywide Waterline Repl 2025WaterCity of SunnyvaleSubcontractor$2,049,281

Most recent 25 of 56. 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

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