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.
- Big Finn Field Fence and Dugout Replacement bid · Closed · Due: 10/09/2025 King County View Notice
- ITB-Oil Sampling and Related Supplies bid · Closed · Due: 10/13/2025 King County View Notice
- WPTP Mechanical Construction Work Order 2026-2027 bid · Closed · Due: 10/07/2025 King County View Notice
- Work Order Multidisciplinary Architectural and Engineering Services for Faciliti bid · Closed · Due: 10/23/2025 King County View Notice
- Boise X Connection #3055A Bridge Replacement bid · Closed · Due: 10/14/2025 King County View Notice
- Heavy Civil GC/CM Services for MDCSO Wet Weather Treatment Station bid · Closed · Due: 10/21/2025 King County View Notice
- Heavy Civil GC/CM Services for MDCSO Wet Weather Treatment Station bid · Closed · Due: 10/21/2025 King County View Notice
- West Duwamish Wet Weather Storage bid · Closed · Due: 9/30/2025 King County View Notice
- West Duwamish Wet Weather Storage bid · Closed · Due: 9/30/2025 King County View Notice
- Hazardous Materials Inspection, Testing & Abatement Work Order bid · Closed · Due: 9/17/2025 King County View Notice
- Work Order Transit Planning and Conceptual Design Services for Metro Transit bid · Closed · Due: 10/21/2025 King County View Notice
- South Treatment Plant (STP) Near Term Biogas Modifications bid · Closed · Due: 9/18/2025 King County View Notice
- Construction Management Services for the Tabor-Crowall and Brodell Revetment bid · Closed · Due: 9/22/2025 King County View Notice
- South Treatment Plant (STP) Near Term Biogas Modifications bid · Closed · Due: 9/18/2025 King County View Notice
- Construction Management Services for the Tabor-Crowall and Brodell Revetment bid · Closed · Due: 9/22/2025 King County View Notice
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