King County Government Bids
Browse active and historical government bids, RFPs, RFQs, IFBs, contract opportunities, and procurement notices issued by the King County. Use this page to monitor King County procurement activity, track upcoming bid opportunities, and identify potential government contracting opportunities in Washington. Select a bid title below to view bid details, due dates, agency information, bid documents, and submission requirements.
- Heavy Civil GC/CM Services for MDCSO Wet Weather Treatment Station bid · Closed · Due: 10/21/2025 King County View Notice
- ITB - Groundskeeping Materials and Fertilizer bid · Closed · Due: 9/19/2025 King County View Notice
- RFP-Civil Matter and Case Management System bid · Closed · Due: 10/23/2025 King County View Notice
- Fifteen Mile Creek Bridge #493C Replacement Project bid · Closed · Due: 10/07/2025 King County View Notice
- South Treatment Plant (STP) Near Term Biogas Modifications bid · Closed · Due: 9/18/2025 King County View Notice
- West Duwamish Wet Weather Storage bid · Closed · Due: 9/30/2025 King County View Notice
- Construction Management Services for the Tabor-Crowall and Brodell Revetment bid · Closed · Due: 9/22/2025 King County View Notice
- RFP-Wheelchair Accessible For-hire Vehicle Coordinated Dispatching Services bid · Closed · Due: 9/11/2025 King County View Notice
- RFP-Wheelchair Accessible For-hire Vehicle Coordinated Dispatching Services bid · Closed · Due: 9/25/2025 King County View Notice
- ITB - First Aid Kits, Emergency Preparedness and Related Items bid · Closed · Due: 9/26/2025 King County View Notice
- Work Order Hydrologic, Hydraulic, and Geomorphological Services for WLRD bid · Closed · Due: 10/07/2025 King County View Notice
- Work Order Hydrologic, Hydraulic, and Geomorphological Services for WLRD bid · Closed · Due: 10/07/2025 King County View Notice
- Heavy Civil GCCM Services for Black Diamond Trunk Capacity Upgrade bid · Closed · Due: 9/11/2025 King County View Notice
- Heavy Civil GCCM Services for Black Diamond Trunk Capacity Upgrade bid · Closed · Due: 10/02/2025 King County View Notice
- Work Order Hydrologic, Hydraulic, and Geomorphological Services for WLRD bid · Closed · Due: 10/07/2025 King County View Notice
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