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.
- Boise X Connection #3055A Bridge Replacement bid · Closed · Due: 10/21/2025 King County View Notice
- Fifteen Mile Creek Bridge #493C Replacement Project bid · Closed · Due: 10/20/2025 King County View Notice
- Heavy Civil GC/CM Services for MDCSO Wet Weather Treatment Station bid · Closed · Due: 10/28/2025 King County View Notice
- Big Finn Field Fence and Dugout Replacement bid · Closed · Due: 10/17/2025 King County View Notice
- 2023 New Guardrail Project bid · Closed · Due: 10/21/2025 King County View Notice
- Heavy Civil GC/CM Services for MDCSO Wet Weather Treatment Station bid · Closed · Due: 10/28/2025 King County View Notice
- Engineering Services for Maleng Regional Justice Center Camera Renewal Project bid · Closed · Due: 11/17/2025 King County View Notice
- ITB - Groundskeeping Materials and Fertilizer bid · Closed · Due: 10/21/2025 King County View Notice
- ITB-Silvicultural Services bid · Closed · Due: 11/05/2025 King County View Notice
- Asphalt Paving and Concrete Work Order bid · Closed · Due: 10/16/2025 King County View Notice
- Heavy Civil GC/CM Services for MDCSO Wet Weather Treatment Station bid · Closed · Due: 10/28/2025 King County View Notice
- ITB-Allison EP50 Hybrid Transmission Parts and Tools bid · Closed · Due: 11/06/2025 King County View Notice
- Boise X Connection #3055A Bridge Replacement bid · Closed · Due: 10/21/2025 King County View Notice
- RFP-Pre-Planning and Cost Estimating for County Projects bid · Closed · Due: 10/31/2025 King County View Notice
- ITB-Bus Engine Crankshaft Repair Services bid · Closed · Due: 10/23/2025 King County View Notice
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