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.
- ITB-Belts, Bearings and Related Items bid · Closed · Due: 8/05/2025 King County View Notice
- South Treatment Plant (STP) Near Term Biogas Modifications bid · Closed · Due: 8/21/2025 King County View Notice
- Five Mile Lake Park - Main Parking Lot Lighting bid · Closed · Due: 7/31/2025 King County View Notice
- West Duwamish Wet Weather Storage bid · Closed · Due: 9/16/2025 King County View Notice
- Engineering Services for the Vashon Recycling & Transfer Station Expansion Prjt bid · Closed · Due: 8/22/2025 King County View Notice
- RFP-Computer Aided Dispatch System bid · Closed · Due: 9/10/2025 King County View Notice
- Engineering Services for the Vashon Recycling & Transfer Station Expansion Prjt bid · Closed · Due: 8/22/2025 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 Truck Capacity Upgrade bid · Closed · Due: 9/11/2025 King County View Notice
- ITB - Marine Propellers bid · Closed · Due: 8/21/2025 King County View Notice
- ITB - Bus Operator Partitions bid · Closed · Due: 8/08/2025 King County View Notice
- ITB - Bus Operator Partitions bid · Closed · Due: 8/01/2025 King County View Notice
- Engineering Services for the Vashon Recycling & Transfer Station Expansion Prjt bid · Closed · Due: 8/22/2025 King County View Notice
- Work Order Environmental Services for Metro Transit Department bid · Closed · Due: 8/27/2025 King County View Notice
- Driver Training and Monitoring Services bid · Closed · Due: 8/06/2025 King County View Notice
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