King County RFPs

2026-2027 Small Works Roster

2026-2027 small works roster.

2026 Vendor Roster

2026 vendor roster.

King County Youth Well-Being Network - Renton Area Lead (Request for Proposals)

Provide youth well-being network - renton area lead.

ITB-Nondestructive Rail Track Testing Services "Re-Bid"

Provide nondestructive rail track testing services.

Harborview Medical Center (HMC) Facility and Infrastructure Improvements Program - Make Ready Package 1a RFP

Make ready Package 1a Haul Road includes: Water management/treatment; earthwork/site preparation; asphalt paving; concrete paving/curbs; pavement markings; fences and gates; landscape; traffic signaling.

Engineering, Planning, and Design Services for RapidRide R Line

King County is soliciting engineering, planning, and design services for the RapidRide R Line under solicitation KC001764.

RFP-Dye-Dilution Testing Services

King County seeks qualified suppliers to provide dye-dilution testing services for sewer flow meters and other applications.

Eastrail - Central Wilburton Interim Trail RFP

1 LS of Mobilization.

Paper Supplies, Reference Resources (Invitation for Bid)

Paper supplies, reference resources.

ITB-Nondestructive Rail Track Testing Services (rebid)

King County is soliciting bids from qualified firms to provide nondestructive rail track testing services.

Government and Stakeholder Relations Services (Request for Proposals)

Provide strategic communications and government and stakeholder relations services to the Harborview Construction and Infrastructure Division.

Multipurpose Copy Paper - White Only RFP

Provide multipurpose copy paper - white only.

WO Construction Management Services for Water and Land Resources Division (Request for Proposals)

Provide construction management and inspection, and related services on a work order basis for King County (“County”).

Dahl Restroom Renovation

Restroom renovation.

Kcit Workforce Management Solution (Request for Proposals)

Provide a workforce management solution.

Kcso Vehicle Graphics

Provide Graphic Decal Design, Printing, Installation, and Removal Services for the King County Sheriff’s Office (KCSO).

ITB-Bus replacement glass

King County seeks qualified firms to supply and deliver bus replacement glass and related materials for Metro transit vehicles.

Kiepe System Parts and Tools RFP

Seeking from interested and qualified firms to provide original, new, and fully compliant Kiepe Electric parts, specialty tools, and diagnostic equipment necessary for the maintenance and repair of King County vehicles equipped with Kiepe systems.

Construction Management Services for Desimone Levee Major Repair Project (Request for Proposals)

The purpose of this contract is to provide construction management services to 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.

Cedar Hills Regional Landfill Pilot-Scale Micro-Electrolysis RFP