RFPs, RFIs, RFQs, Sources Sought and Government Contracting Opportunities in King County, Washington

The City of Seattle is seeking a vendor to provide unarmed fixed-post, roving patrol, mobile response, and emergency security services for Seattle Public Utilities facilities and infrastructure throughout Seattle and King County.

King County is soliciting submittals from qualified firms to provide organizational development consulting services, including related training and development.

King County is seeking a heavy civil general contractor/construction manager to provide preconstruction and construction services for treatment, odor control, and electrical improvements at the South Treatment Plant.

King County's Wastewater Treatment Division is seeking a contractor for industrial electrical repairs, replacements, testing, controls installation, and safety improvements at offsite wastewater facilities.

The King County Housing Authority is seeking a contractor to perform attic remediation at Gilman Square Apartments, with bids due September 17, 2026.

King County is soliciting bids for as-needed graphic decal design, printing, installation, and removal services for the King County Sheriff's Office.

The King County Library System is seeking qualified artists for a roster supporting future acquisitions of existing two- and three-dimensional artwork and site-specific commissions across its library facilities.

Public Health–Seattle & King County is seeking Infant Mental Health experts to provide consultation services.

King Conservation District is seeking a consultant to design, print, sort, and mail approximately 270,000 election postcards to eligible voting households for its 2027 Board Election.

King County Metro is soliciting bids for the purchase and delivery of genuine BAE Systems tools, components, sub-assemblies, hardware, and replacement parts for hybrid-electric and electric bus propulsion-system maintenance.

King County, Washington is seeking proposals for work-order engineering and related services supporting solid waste landfill systems and facilities under an active A&E solicitation.

King County is seeking a contractor to provide complete roof replacement and repair work, including all labor, materials, equipment, transportation, and related construction services.

King County is soliciting bids for the as-needed supply of uniforms and related items for the King County Sheriff's Office.

The Washington State Department of Transportation is seeking a design-build contractor for the SR 518 Tukwila International Boulevard BRT Station Project, including a new BRT station, pedestrian bridge, and fish passage structure, with an estimated budget of $125-165 million.

The City of Bellevue is seeking contractors to provide janitorial services at designated Parks & Community Services facilities and other needed sites, with separate west service-area schedules and possible multiple awards.

The City of Bellevue is requesting proposals for solid waste collection services including garbage, recyclables, and organics collection, litter collection, emergency services, and customer service, with a due date of October 12, 2026.

The City of Bellevue is seeking one or more contractors for citywide on-call electrical repair, maintenance, replacement, installation, and emergency response services, including traffic signals, streetlighting, and traffic-safety equipment.

The City of Bellevue, Washington is seeking a contractor to provide janitorial services at designated Parks & Community Services facilities and other sites as needed, with possible awards for separate service areas.

The City of Redmond is seeking consulting firms for engineering design and related support for approximately 20 ADA-compliant curb ramps and driveway approaches near 150th Avenue NE and NE 40th Street.

The City of Redmond is seeking cloud enterprise content management software and implementation services for 50 administrator and 550 read/write/update user licenses to unify citywide records management, public records request processing, document search, retention, compliance, and integrations.

The City of Renton is seeking civil and structural engineering design services for Phase 5 improvements to Rainier Avenue, including roadway, transit, pedestrian, bicycle, traffic, utility, and retaining-wall design.

The City of Renton is requesting qualifications from consultants for civil and structural engineering design services for the Rainier Avenue Corridor Improvements—Phase 5 project, including roadway, transit, pedestrian, bicycle, utility, and retaining-wall design.

King Conservation District is seeking a commercial real estate broker to identify, evaluate, negotiate, and secure a 10,000- to 13,000-square-foot office and warehouse property for purchase or lease in the Renton/Tukwila area.

The King County Directors' Association is seeking electronic bids for duplicating supplies, ink, and toner cartridges under Bid #27-037, with an estimated annual contract value of $230,000 to $250,000 for participating member agencies.

TerraPower LLC is seeking a supplier to provide Grade 92 heat treatment and mechanical properties testing supporting non-destructive examination.