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Government contracts for engineering services in Washington

A snapshot of open federal, state, and local opportunities in Washington, updated daily. To search them and get daily matches for your business, sign up free.

42
Open contracts
31
Added last 30 days

About engineering services contracts in Washington

Engineering services contracts in Washington typically cover roadway and bridge design, construction engineering and inspection, water and wastewater system design, geotechnical investigations, stormwater and drainage studies, traffic engineering, and multi-year on-call engineering services agreements. Federal posts in this category fall under NAICS 541330 (Engineering Services), the largest professional-services classification in government contracting, and the bulk of the work flows to the U.S. Army Corps of Engineers, DoD installations, the GSA, and state Departments of Transportation. Engineering procurements typically follow qualifications-based selection under the Brooks Act and state mini-Brooks statutes, and many on-call pools are set aside for 8(a), SDVOSB, and DBE-certified firms.

Washington currently has 42 open engineering services contracts in our database, with 31 added in the last 30 days. That's enough volume that a focused small business can win recurring work in this state without ever leaving its home market. The most active buyers are FEDERAL HIGHWAY ADMINISTRATION (10 open posts) and City of Seattle (9), with the rest spread across other federal civilian agencies, DoD components, and state and local departments active in Washington.

Beyond federal opportunities, much of the engineering services work in Washington is posted through Washington's Electronic Business Solution (WEBS), with recurring buyers including WSDOT, the University of Washington / Washington State University, and Sound Transit. Washington's Office of Minority and Women's Business Enterprises (OMWBE) certification is the gate for most diversity-set-aside spend at the state level. ContractRadar pulls federal postings from SAM.gov alongside state and local feeds so an engineering firm doesn't have to monitor each portal manually.

Top matching contracts in Washington

KNG

Heavy Civil GC/CM Services for STP Treatment and Electrical Improvements (TEI)

The Heavy Civil GC/CM Project includes preconstruction and construction services for the South Treatment Plant (STP) Treatment and Electrical Improvements (TEI) Project. The Project is intended to pro…

King CountyPerformance: WADue Oct 13, 2026Posted Aug 19, 2026
Solicitation Type: Alternative Procurements
KNG

Work Order Multidisciplinary Design Review and Technical Review Services for WTD

The purpose of this contract is to provide multidisciplinary design review, technical review, and related services on a work order basis for King County Department of Natural Resources and Parks, Wast…

King CountyPerformance: WADue Aug 24, 2026Posted Jul 23, 2026
Department: NATURAL RESOURCES AND PARKS
SEA

CITYWIDE CONSULTANT ROSTER: Engineering, Surveying, and Design Consulting

The City of Seattle is requesting eligible Consultants submit an application and statement of qualifications for the establishment of engineering, surveying and design related consultant rosters.

City of SeattlePerformance: WADue Dec 30, 2030Posted Sep 2, 2025
Department: City Consultant RosterSolicitation #: CTY-CR-2025-06
KNG

Work Order Engineering Services for Solid Waste Landfill Systems

The purpose of this contract is to provide engineering and related services on a work order basis for King County Department of Natural Resources and Parks, Solid Waste Division (“County”). The exact …

King CountyPerformance: WADue Sep 15, 2026Posted Aug 17, 2026
Solicitation Type: A&E Solicitation
KNG

Work Order Survey & Aerial Mapping Services for Water & Land Resources Division

The purpose of this contract is to provide surveying and aerial mapping and related services on a work order basis for King County (“County”). The exact disciplines required and the amount of work for…

King CountyPerformance: WADue Sep 10, 2026Posted Aug 11, 2026
Solicitation Type: A&E Solicitation
PIE

168th Street East (SR-7 To B Street East) - CRP 5936

This contract provides for the improvement of 168th Street East from SR-7 to B Street East. 168th Street East will be widened to accommodate one through lane in each direction and a center turn lane b…

Pierce CountyPerformance: WADue Sep 9, 2026Posted Aug 12, 2026
Department: Procurement and Contract DivisionSolicitation #: 2025-MPW-233
FED

DACW675270000100 - United States Army Corps of Engineers (USACE) seeks to lease approximately 0.01 Ac of land near Chief Joseph Dam in Bridgeport, WA for a Water Monitor

PRE-SOLICITATION NOTICE/ADVERTISEMENT � UNITED STATES ARMY CORPS OF ENGINEERS The U.S. Government, by and through United States Army Corps of Engineers (USACE), seeks to lease the following space: Sta…

DEPT OF THE ARMYPerformance: WADue Aug 31, 2026Posted Jul 29, 2026
NAICS Code: 531190PSC Code: X1PCSolicitation Type: SolicitationDivision: W071 ENDIST SEATTLE+2
KNG

Work Order Multidisciplinary Engineering Services for Airport Division

The purpose of this contract is to provide engineering and related services on a work order basis for King County (“County”). The exact disciplines required and the amount of work for each discipline …

King CountyPerformance: WADue Sep 1, 2026Posted Aug 11, 2026
Solicitation Type: A&E Solicitation
WA

YTC MATES POV Paved Parking Repair

Asphalt parking repair and replacement, including earthwork and pavement markings

Performance: WADue Sep 3, 2026Posted Jul 28, 2026
Solicitation #: RFQ27-006
WA

DOC - WCCW Perimeter Road Paving

WCCW Perimeter Road Paving

Performance: WADue Aug 27, 2026Posted Aug 6, 2026
Solicitation #: 2025-337 G 1-1
PIE

On-Call Right-of-Way Services for Planning & Public Works

Pierce County is intending to award one or more contracts to qualified Consultants who are capable of providing right of way acquisition and relocation services on an on-call or as needed basis. The C…

Pierce CountyPerformance: WADue Sep 2, 2026Posted Aug 12, 2026
Department: Procurement and Contract ServicesSolicitation #: 2026-RFP-130
FED

Western Federal Lands Highway Division (WFLHD) Building Renovations

Project Description: Two-Phase Design-Build (DB) Western Federal Lands Highway Division (WFLHD) Building Renovation Solicitation Notice Number: 69056726R000008 Project Location: 610 E 5th Street, Vanc…

FEDERAL HIGHWAY ADMINISTRATIONPerformance: WAPosted Jun 4, 2026
NAICS Code: 236220PSC Code: Z2AASolicitation Type: PresolicitationDivision: 690567 WESTERN FEDERAL LANDS DIV+2
WA

Water and Wastewater Treatment

The purpose of this procurement is to obtain the services of one Contractor to operate and maintain the environmental water management system for the Washington State Fire Training Academy. The goal i…

Performance: WADue Sep 28, 2026Posted Jul 25, 2026
Solicitation #: WSP-RFQQ-WWT3
FED

Western Federal Lands Highway Division (WFLHD) Building Renovations

Project Description: Two-Phase Design-Build (DB) Western Federal Lands Highway Division (WFLHD) Building Renovation Solicitation Notice Number: 69056726R000008 Project Location: 610 E 5th Street, Vanc…

FEDERAL HIGHWAY ADMINISTRATIONPerformance: WAPosted Jun 3, 2026
NAICS Code: 236220PSC Code: Z2AASolicitation Type: PresolicitationDivision: 690567 WESTERN FEDERAL LANDS DIV+2
FED

Lower Monumental PH HVAC System Upgrade

OVERVIEW: The work is located at the Lower Monumental Dam Powerhouse, Kahlotus, Washington. This solicitation is being issued as a Lowest Price Technically Acceptable (LPTA) Request for Proposal (RFP)…

DEPT OF THE ARMYPerformance: WADue Sep 22, 2026Posted Aug 21, 2026
NAICS Code: 238220PSC Code: Y1KASolicitation Type: SolicitationDivision: US ARMY ENGINEER DISTRICT WALLA WAL+2

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Top contracting agencies in Washington

FEDERAL HIGHWAY ADMINISTRATION10 contracts
City of Seattle9 contracts
Washington6 contracts
King County6 contracts
Pierce County4 contracts

Other industries in Washington

Other states for Engineering Services

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