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.
- Permitting Abatement and Hazardous Materials Services Work Order bid · Closed · Due: 9/08/2026 King County View Notice
- Heavy Civil GC/CM Services for STP Treatment and Electrical Improvements (TEI) bid · Closed · Due: 10/13/2026 King County View Notice
- RFP-Dye-Dilution Testing Services bid · Closed · Due: 9/11/2026 King County View Notice
- Permitting Abatement and Hazardous Materials Services Work Order bid · Closed · Due: 9/08/2026 King County View Notice
- Work Order Engineering Services for Solid Waste Landfill Systems bid · Closed · Due: 9/15/2026 King County View Notice
- GC/CM Services for Harborview Ninth and Jefferson Building 3T MRI bid · Closed · Due: 8/24/2026 King County View Notice
- Permitting Abatement and Hazardous Materials Services Work Order bid · Closed · Due: 9/08/2026 King County View Notice
- ITB-BAE Parts and Tools bid · Closed · Due: 9/16/2026 King County View Notice
- Central Base, Atlantic Base & Non-Revenue UST Improvements and AST Installation bid · Closed · Due: 9/09/2026 King County View Notice
- Corrosion Repairs Work Order bid · Closed · Due: 9/01/2026 King County View Notice
- RFP-Elementary School and Community Focused Education Program Services bid · Closed · Due: 9/02/2026 King County View Notice
- South Treatment Plant Dissolved Air Flotation Thickener Tanks Rehabilitation bid · Closed · Due: 8/18/2026 King County View Notice
- Work Order Survey & Aerial Mapping Services for Water & Land Resources Division bid · Closed · Due: 9/10/2026 King County View Notice
- RFQ Organizational Development Consulting Services - Supplemental bid · Closed · Due: 9/15/2026 King County View Notice
- Work Order Multidisciplinary Engineering Services for Airport Division bid · Closed · Due: 9/01/2026 King County View Notice
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