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

King County is seeking a contractor to clean underground sewer pipelines, perform CCTV inspections, and provide grouting and sealing services for live sewers, sand catchers, rock boxes, wet wells, main lines, and side sewers.

King County's Water and Land Resources Division is seeking architectural and engineering construction management, inspection, and related services on a work-order basis.

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, Washington is seeking sealed bids for a not-to-exceed $3 million contract covering roof repairs and replacements for Wastewater Treatment Division facilities.

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 is soliciting qualified firms to provide organizational development consulting services under supplemental solicitation KC001706.

King County Information Technology is seeking a scalable workforce management solution for staffing, scheduling, workforce planning, real-time operational insights, and labor compliance across two initial county agencies, with potential countywide expansion.

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.

King County Metro is seeking vehicle maintenance and repair services for Mobility Services rideshare fleet vehicles operating in the Puget Sound region.

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

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 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.

Sammamish Plateau Water is seeking sealed bids for construction of emergency and operational storage improvements at the Freegard Lift Station, including replacement wet wells, sewer piping, a diesel backup pump, bypass pumping, electrical work, and site restoration.

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 a contractor to conduct a 2027 human services needs assessment, including surveys, stakeholder interviews, focus groups, outreach, data analysis, and a final update report.

Ames Lake Water Association is seeking bids to replace asbestos-cement water mains along NE Union Hill Road and NE 40th Street, with optional communication and electrical conduit installation.

The City of Redmond is seeking civil engineering consultants to design traffic-calming roadway improvements, pedestrian crossings with rectangular rapid-flashing beacons, and mini roundabouts in Downtown and Southeast Redmond.

The City of Redmond is seeking civil engineering consultants to design traffic-calming improvements and pedestrian crossings, including lane narrowing, two rectangular rapid-flashing beacon crossings, and three mini roundabouts.

The City of Redmond is seeking consulting firms for design services for ADA curb ramp construction near 150th Avenue NE and NE 40th Street, including planning analyses, permitting, plans, specifications, cost estimates, and real-property and arborist support.

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 Redmond is seeking information from qualified vendors about implementing a citywide fiber and conduit management solution supporting transportation and intelligent transportation systems infrastructure.

The City of Carnation is seeking sealed bids for construction of its 2026 ADA Barrier Removal Project, including sidewalk and curb ramp replacement, curb and gutter work, utility adjustments, paving, erosion control, traffic control, and restoration.