King, Washington government contracts, bids & RFPs
Open solicitations where the work will be performed in or around King, Washington — including city and county bids, school district and special-district RFPs, and federal contracts with a King place of performance. Updated daily from official procurement sources.
20 open solicitations right now.
Paste your website — we'll show the open government contracts that fit your business.
Free · no signup · we read your homepage once. We don't store your email.
Contract activity in King
A current snapshot based on 20 listings shown on this page. Counts update with the directory.
- King County, WA19
- King County Housing Authority (KCHA), WA1
Deadline outlook
- Next 30 days
- 17
- Later
- 3
- Open / rolling
- 0
Most represented buyers
- King County19
- King County Housing Authority (KCHA), WA1
17 of the listings shown were posted in the last 30 days. King County, WA contributes the largest share (19). King County is the most represented buyer in this snapshot.
Latest open solicitations in King
- RFP-Actuarial Services for GASB 75 and GASB 101King CountyKing County, WAPosted Oct 29, 2026Due Nov 24, 2026
King County is soliciting proposals from interested and qualified suppliers to provide actuarial services to complete the County’s Governmental Accounting Standards Board Statements (GASB) 75 and 101.
More - Shoreline Transfer Station Dust Control ProjectKing CountyKing County, WAPosted Oct 28, 2026Due Nov 12, 2026
The purpose of the contract is to install a new dust control system at the Shoreline Transfer Station. The work includes but is not limited to installation of a steel partition wall on mezzanine over tipping floor, construct and install misting system modifications including new pump, air compressor, sensors, control, programming, testing and commissioning, installation of supply fan and tie into existing controls, demolition of duct hood and cap ducting, test and balance HVAC system in office…
More - RFP - Plain Old Telephone Service (POTS) Replacement SolutionKing CountyKing County, WAPosted Oct 27, 2026Due Nov 30, 2026
The purpose of this Request for Proposals (RFP) is to identify and select a qualified Contractor to provide a modern, reliable, and compliant telecommunications solution to replace legacy copper Plain Old Telephone Service (POTS) lines and Centrex digital lines. The County is seeking a turnkey solution that may include voice over internet protocol (VoIP), wireless LTE-based services, or other equivalent technologies that ensure continuity of service, improved resiliency, and compliance with…
More - Cedar Hills Regional Landfill Pilot-Scale Micro-ElectrolysisKing CountyKing County, WAPosted Oct 27, 2026Due Nov 10, 2026
The pilot-scale ME project, which targets arsenic in industrial wastewater from the methane processing plant located at CHRLF, is part of the overall leachate and lagoon improvements project at CHRLF. The pilot-scale ME technology and treatment system has been selected to pretreat the industrial wastewater stream from the methane processing plant prior to the stream entering the leachate lagoon pretreatment system. The experimental ME technology was developed by the University of Washington…
More - Cedar Hills Regional Landfill Pilot-Scale Micro-ElectrolysisKing CountyKing County, WAPosted Oct 23, 2026Due Nov 10, 2026
The pilot-scale ME project, which targets arsenic in industrial wastewater from the methane processing plant located at CHRLF, is part of the overall leachate and lagoon improvements project at CHRLF. The pilot-scale ME technology and treatment system has been selected to pretreat the industrial wastewater stream from the methane processing plant prior to the stream entering the leachate lagoon pretreatment system. The experimental ME technology was developed by the University of Washington…
More - RFP-Wastewater Treatment Division Leadership TrainingKing CountyKing County, WAPosted Oct 23, 2026Due Nov 17, 2026
King County is soliciting proposals from highly qualified leadership consultants with extensive backgrounds and experience in the wastewater sector to provide leadership development, team development, strategic planning, and coaching services for the King County Wastewater Treatment Division leadership team.
More - Aluminum Trail BridgesKing CountyKing County, WAPosted Oct 23, 2026Due Dec 3, 2026
King County is seeking a supplier for pre-manufactured aluminum trail bridges.
More - ITB-Bus replacement glassKing CountyKing County, WAPosted Oct 22, 2026Due Nov 4, 2026
King County is seeking qualified firms to supply and deliver bus replacement glass and related materials for Metro transit vehicles. The selected contractor will provide glass that meets or exceeds Original Equipment Manufacturer (OEM) standards for safety, fit, clarity, durability, and performance. All components must comply with applicable federal, state, and local regulations, including transportation glazing safety requirements.
More - Niehoff Alternator PartsKing CountyKing County, WAPosted Oct 21, 2026Due Nov 18, 2026
The Contractor shall supply and deliver C.E. Niehoff alternators, C.E. Niehoff voltage regulators and internal repair parts for these items, in accordance with the specifications, terms and conditions defined herein during the term of the contract. The C.E. Niehoff alternators, C.E. Niehoff voltage regulators and internal repair parts shall meet or exceed the OEM Manufacturer’s minimum specifications and conform to all applicable industry and safety standards. equals include: A. Alternators…
More - Engineering, Planning, and Design Services for RapidRide R LineKing CountyKing County, WAPosted Oct 21, 2026Due Nov 5, 2026
The purpose of this contract is to provide multidisciplinary engineering, planning, design, and related services to King County Metro Transit, Capital Division (“County”) for the upcoming RapidRide R Line which will serve the city of Seattle. The Consultant shall plan, develop, design, and produce bidding documents for roadway/signal/sidewalk improvements, transit passenger facilities, and transit communication infrastructure, as well as any other needed components for the RapidRide R Line.…
More - RFP On-Call Learning ConsultantKing CountyKing County, WAPosted Oct 16, 2026Due Nov 17, 2026
King County is soliciting proposals from interested and qualified suppliers to provide an On-Call Learning Consultant on an as-needed basis.
More - FRP PuncheonsKing CountyKing County, WAPosted Oct 16, 2026Due Nov 18, 2026
King County is seeking bids from qualified suppliers for Fiber Reinforced Polymer (FRP) puncheons for King County Park facilities.
More - King County International Airport Pavement Improvements Work Order - RebidKing CountyKing County, WAPosted Oct 15, 2026Due Nov 3, 2026
B.A. The Contract consists of Work Orders to be issued by the Airport within the Contract Time for paving and drainage maintenance improvements at the Airport. Work includes, but is not limited to, clearing, excavation, removal, and disposal of existing site materials; placing finished and curbing of unreinforced and reinforced slabs; paving with Portland Cement Concrete and/or asphalt concrete; installations of pipe sections, installation and removal of pavement paint markings, emergency…
More - Engineering, Planning, and Design Services for RapidRide R LineKing CountyKing County, WAPosted Oct 14, 2026Due Nov 5, 2026
The purpose of this contract is to provide multidisciplinary engineering, planning, design, and related services to King County Metro Transit, Capital Division (“County”) for the upcoming RapidRide R Line which will serve the city of Seattle. The Consultant shall plan, develop, design, and produce bidding documents for roadway/signal/sidewalk improvements, transit passenger facilities, and transit communication infrastructure, as well as any other needed components for the RapidRide R Line.…
More - Construction Management Services for Desimone Levee Major Repair ProjectKing CountyKing County, WAPosted Oct 13, 2026Due Nov 4, 2026
The purpose of this contract is to provide construction management services to King County Department of Natural Resources and Parks, Water and Land Resources Division (“County”) which includes constructability reviews and construction management and inspection (CM&I) services for the Desimone Levee Major Repair Project.
More - Engineering, Planning, and Design Services for RapidRide R LineKing CountyKing County, WAPosted Oct 8, 2026Due Nov 5, 2026
The purpose of this contract is to provide multidisciplinary engineering, planning, design, and related services to King County Metro Transit, Capital Division (“County”) for the upcoming RapidRide R Line which will serve the city of Seattle. The Consultant shall plan, develop, design, and produce bidding documents for roadway/signal/sidewalk improvements, transit passenger facilities, and transit communication infrastructure, as well as any other needed components for the RapidRide R Line.…
More - ITB-Bus replacement glassKing CountyKing County, WAPosted Oct 7, 2026Due Nov 4, 2026
King County is seeking qualified firms to supply and deliver bus replacement glass and related materials for Metro transit vehicles. The selected contractor will provide glass that meets or exceeds Original Equipment Manufacturer (OEM) standards for safety, fit, clarity, durability, and performance. All components must comply with applicable federal, state, and local regulations, including transportation glazing safety requirements.
More - Small Tool Calibration & Certification ServicesKing CountyKing County, WAPosted Sep 24, 2026Due Nov 5, 2026
King County is soliciting bids from qualified calibration laboratories to provide comprehensive calibration, testing, repair verification, and certification services for small tools.
More - Kiepe System Parts and ToolsKing CountyKing County, WAPosted Sep 23, 2026Due Nov 12, 2026
King County is seeking bids from qualified firms to supply new, original Kiepe Electric parts, specialty tools, and diagnostic equipment needed to maintain and repair County vehicles.
More - Property Management Firm Roster Inclusion RFQKing County Housing Authority (KCHA), WAKing County Housing Authority (KCHA), WAPosted —Due Apr 1, 2027
Recently closed in King
These Kingsolicitations closed recently — a sign of what buys here. Set a free alert so you don’t miss the next one.
- RFP-Dye-Dilution Testing ServicesKing CountyKing County, WAClosed Oct 30, 2026
King County is soliciting proposals from interested and qualified suppliers to provide dye-dilution testing services for sewer flow meters and other applications.
More - Envelope Renovations at Sandpiper East, Buildings 12, 22 & 28King County Housing Authority (KCHA), WAKing County Housing Authority (KCHA), WAClosed Oct 30, 2026
- Shoreline Transfer Station Dust Control ProjectKing CountyKing County, WAClosed Oct 29, 2026
The purpose of the contract is to install a new dust control system at the Shoreline Transfer Station. The work includes but is not limited to installation of a steel partition wall on mezzanine over tipping floor, construct and install misting system modifications including new pump, air compressor, sensors, control, programming, testing and commissioning, installation of supply fan and tie into existing controls, demolition of duct hood and cap ducting, test and balance HVAC system in office…
More - Eastrail - Central Wilburton Interim TrailKing CountyKing County, WAClosed Oct 28, 2026
This project provides for the improvement of an interim gravel trail for the Eastrail – Central Wilburton Interim Trail from SE 5th Street to NE 4th Street in the City of Bellevue. Work includes grading, rail and tie removal, culvert improvement, roadway crossing and signal at SE 1st intersection, landscaping, erosion control and traffic controls, and other works.
More - Eastrail - Central Wilburton Interim TrailKing CountyKing County, WAClosed Oct 27, 2026
This project provides for the improvement of an interim gravel trail for the Eastrail – Central Wilburton Interim Trail from SE 5th Street to NE 4th Street in the City of Bellevue. Work includes grading, rail and tie removal, culvert improvement, roadway crossing and signal at SE 1st intersection, landscaping, erosion control and traffic controls, and other works.
More - Cedar Hills Regional Landfill Pilot-Scale Micro-ElectrolysisKing CountyKing County, WAClosed Oct 27, 2026
The pilot-scale ME project, which targets arsenic in industrial wastewater from the methane processing plant located at CHRLF, is part of the overall leachate and lagoon improvements project at CHRLF. The pilot-scale ME technology and treatment system has been selected to pretreat the industrial wastewater stream from the methane processing plant prior to the stream entering the leachate lagoon pretreatment system. The experimental ME technology was developed by the University of Washington…
More - Eastrail - Central Wilburton Interim TrailKing CountyKing County, WAClosed Oct 27, 2026
This project provides for the improvement of an interim gravel trail for the Eastrail – Central Wilburton Interim Trail from SE 5th Street to NE 4th Street in the City of Bellevue. Work includes grading, rail and tie removal, culvert improvement, roadway crossing and signal at SE 1st intersection, landscaping, erosion control and traffic controls, and other works.
More - RFP-KCIT Workforce Management SolutionKing CountyKing County, WAClosed Oct 26, 2026
King County Information Technology (KCIT, King County), is seeking proposals for a comprehensive, scalable Workforce Management Solution that enhances operational efficiency, supports strategic workforce planning, and delivers real-time insights to optimize staffing, scheduling, and labor compliance for the initial two (2) separate participating County agencies, King County Sheriff’s Office (KCSO) and King County Department of Natural Resources and Parks (DNRP) Solid Waste Division (SWD) with…
More
Get new King contracts in your inbox
GovBidAlerts monitors SAM.gov, TED, and 2,000+ state, local, and agency portals. Create a free account, set your location and what you sell, and we'll email you when matching bids post. No credit card required.
Create free alertNearby cities & counties
- Snoqualmie (1) · 4 mi
- Carnation (1) · 11 mi
- Ravensdale (1) · 11 mi
- Bellevue (8) · 17 mi
- Renton (1) · 17 mi
- Redmond (6) · 18 mi
- Kent (5) · 19 mi
- Mercer Island (3) · 19 mi
- Tukwila (2) · 21 mi
- Enumclaw (4) · 21 mi
- Seatac (2) · 22 mi
- Kirkland (2) · 22 mi
- Des Moines (1) · 24 mi
- Lake Tapps (1) · 24 mi
- Seattle (66) · 26 mi
- Bothell (5) · 26 mi
- Sumner (1) · 26 mi
- Sultan (2) · 26 mi
- Federal Way (1) · 27 mi
- Skykomish (1) · 27 mi
- Mountlake Terrace (1) · 30 mi
- Puyallup (17) · 30 mi
- Edmonds (2) · 33 mi
- Tacoma (15) · 34 mi
- Mukilteo (1) · 36 mi
- Everett (17) · 37 mi
- Port Orchard (3) · 37 mi
- Lake Stevens (18) · 37 mi
- University Place (2) · 38 mi
- Lakewood (2) · 40 mi
- Keyport (16) · 40 mi
- Bremerton (160) · 41 mi
- Silverdale (25) · 41 mi
- Marysville (3) · 43 mi
- Cle Elum (1) · 46 mi
- Arlington (2) · 49 mi
- Darrington (1) · 54 mi
- Lacey (2) · 55 mi
- Leavenworth (1) · 55 mi
- Stanwood (1) · 57 mi
Frequently asked
20 open government solicitations are currently posted with a King, Washington place of performance — including city, county, school-district, special-district, and federal bids — updated daily.
King solicitations span construction, professional and IT services, supplies, and equipment, posted by King and Washington agencies as well as federal buyers performing work there.