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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