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

Browse open government contracting RFPs, RFIs, RFQs, and Sources Sought in Bellevue, Washington on Bidscope. We aggregate active government contracting opportunities from federal, state, and local agencies across Bellevue, Washington, refreshed daily so you never miss a bid. Click any opportunity below for full solicitation details, due dates, and contacts.

StatusTitleBuyerDue Date
OpenAdministrative Printing Services

King County is seeking qualified firms to join a roster for administrative printing services.

King County, WA, USA•Request for Quote/Qualifications (RFQ)Small Business
King County > Executive Services > Facilities Management12/1/2026
OpenLow- and Medium-Voltage Transformer Inspection and Diagnostics

King County Wastewater Treatment Department is seeking field inspection, analysis, and diagnostic services for Liebert low- and medium-voltage power transformers.

King County, WA, USA•Request for Proposal (RFP)Small Business
King County > Wastewater Treatment Division12/4/2026
OpenTransit Coach Alternators and Parts

King County is seeking a supplier to provide C.E. Niehoff alternators, voltage regulators, and internal repair parts for transit coaches under a five-year contract.

King County, WA, USA•Invitation for/to Bid (IFB/ITB)Small Business
King County > Procurement and Payables Section11/18/2026
OpenInstitutional Review Board Management System

The University of Washington is seeking a SaaS solution to support its Human Subjects Division and Institutional Review Board operations, including management of human-subjects research workflows.

King County, WA, USA•Request for Proposal (RFP)
University of Washington > Procurement Services11/20/2026
OpenFiber-Reinforced Polymer Durable Trail Puncheons

King County is seeking bids for durable fiber-reinforced polymer puncheons and related materials and labor for park facilities, with approximately 27 units to be purchased annually.

King County, WA, USA•Invitation for/to Bid (IFB/ITB)Small Business
King County > Procurement and Payables Section11/18/2026
OpenWater Main Replacement and Related Improvements

The City of Bellevue is seeking a contractor to replace approximately 10,820 linear feet of water main and install hydrants, water services, and two pressure-reducing valve stations, with an engineer’s estimate of $7.0 million to $7.7 million.

Bellevue, WA, USA•Invitation for/to Bid (IFB/ITB)
City of Bellevue > Utilities Department11/12/2026
OpenPOTS and Centrex Line Replacement

King County is seeking a turnkey solution to replace legacy POTS and Centrex lines, including implementation, migration, testing, deployment, documentation, and ongoing support.

King County, WA, USA•Request for Proposal (RFP)Small Business
King County > Information Technology > Operations and Infrastructure11/30/2026
OpenFarmland Access Strategic Initiative Consulting Grant

King Conservation District is seeking consultants to improve access to farmland in King County through a grant-funded strategic initiative, including collaboration with King County and planning an annual countywide summit.

King County, WA, USA•Grant
King County > King Conservation District-
OpenSand, Rock, and Gravel Supply

King County is soliciting bids for the supply of sand, rock, and gravel materials.

King County, WA, USA•Invitation for/to Bid (IFB/ITB)Small Business
King County > Department of Local Services > Road Services Division12/1/2026
OpenAbandoned Shopping Cart Retrieval Services

The City of Bellevue is seeking twice-weekly retrieval of abandoned retail shopping carts from public areas, prioritizing carts reported to the city.

Bellevue, WA, USA•Request for Proposal (RFP)
City of Bellevue11/19/2026
OpenWastewater Division Leadership Development

King County is seeking leadership consultants to provide leadership and team development, strategic planning, and coaching for its Wastewater Treatment Division leadership team.

King County, WA, USA•Request for Proposal (RFP)Small Business
King County > Wastewater Treatment Division11/17/2026
OpenCapital Project Control Services

King County Metro Transit Department is seeking professional services to initiate, maintain, and close out capital projects using its Comprehensive Project Management Tool.

King County, WA, USA•Request for Proposal (RFP)Small Business
King County > Metro Transit Department > Capital Division12/17/2026
OpenHR and Financial Systems Modernization Assessment

The City of Bellevue is seeking consulting services to assess its enterprise HR and financial systems and develop a modernization strategy, procurement approach, and implementation roadmap coordinated with its ongoing Procurement Transformation.

Bellevue, WA, USA•Request for Proposal (RFP)
City of Bellevue12/3/2026
OpenTransit Coach Alternators and Parts

King County is seeking C.E. Niehoff alternators, voltage regulators, and internal repair parts for transit coaches.

King County, WA, USA•Invitation for/to Bid (IFB/ITB)Small Business
King County > Fleet Management11/18/2026
OpenIn-Custody Communications and Digital Services Platform

King County is seeking industry information on solutions for in-custody communications and related digital services and platforms for its Department of Adult and Juvenile Detention.

King County, WA, USA•Request for Information (RFI)
King County > Department of Adult and Juvenile Detention11/26/2026
Open173rd Avenue NE Sidewalk and Roadway Engineering Services

The City of Bellevue is seeking an engineering consultant for alternatives analysis, design, environmental review, permitting, and construction-phase services for a sidewalk and roadway improvement project.

Bellevue, WA, USA•Request for Quote/Qualifications (RFQ)
City of Bellevue > Transportation Department12/3/2026
OpenOn-Call Learning Consultant Services

King County is seeking an on-call learning consultant to provide services on an as-needed basis.

King County, WA, USA•Request for Proposal (RFP)Small Business
King County > Executive Services > Finance and Business Operations11/17/2026
OpenPre-Manufactured Aluminum Trail Bridges

King County is seeking a supplier for pre-manufactured aluminum trail bridges.

King County, WA, USA•Request for Proposal (RFP)Small Business
King County > Department of Natural Resources > Parks Division12/3/2026
OpenGASB 75 and GASB 101 Actuarial Services

King County is seeking actuarial services to complete analyses for its GASB 75 and GASB 101 reporting requirements.

King County, WA, USA•Request for Proposal (RFP)Small Business
King County > Department of Human Resources11/24/2026
OpenMeydenbauer Bay Park Phase 2 GC/CM Services

The City of Bellevue is seeking a general contractor/construction manager for Meydenbauer Bay Park Phase 2, a park expansion involving preconstruction and construction services, with a 15% apprentice utilization requirement and an estimated maximum allowable construction cost of $20.2 million.

Bellevue, WA, USA•Request for Proposal (RFP)
City of Bellevue12/4/2026
OpenSR 518 Tukwila International Boulevard BRT Station Project

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.

King County, WA, USA•Request for Proposal (RFP)Disadvantaged Business
Department of Transportation11/16/2026
OpenLandscape Maintenance Services

King County is seeking qualified firms to provide landscape maintenance at multiple sites, including monitoring and establishment work required by permits or agreements.

King County, WA, USA•Invitation for/to Bid (IFB/ITB)Small Business
King County12/3/2026
OpenBellevue Office Space Lease

The Washington State Department of Enterprise Services, on behalf of the State Auditor's Office, is seeking approximately 2,320 BOMA rentable square feet of office space in Bellevue, Washington, under a minimum five-year lease.

Bellevue, WA, USA•Request for Proposal (RFP)
Washington > Washington State Department of Enterprise Services2/20/2028
OpenWater Main Replacement and Related Infrastructure Work

The City of Bellevue is seeking a contractor to replace approximately 10,820 linear feet of water mains and complete related hydrant, water service, pressure-reducing station, utility, and surface restoration work.

450 110th Avenue NE, Bellevue, WA, USA•Invitation for/to Bid (IFB/ITB)
City of Bellevue11/12/2026
OpenEnterprise 4G LTE Network Extenders

Seattle Public Schools intends to sole-source Verizon 4G LTE Network Extender 3 devices to improve cellular coverage and communications for district staff.

Seattle, WA, USA•Sole Source
Seattle School District No. 111/13/2026
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