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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