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
- 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
- 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
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