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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.

39
Open contracts
30
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 39 open engineering services contracts in our database, with 30 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 City of Seattle (9 open posts) and Washington (7), 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

Engineering Svcs for Stormwater Retrofit Planning for Urban Unincorporated Areas

The purpose of this contract is to provide engineering and related services to King County Department of Natural Resources and Parks, Water and Land Resources Division, Stormwater Services Section (“C…

King CountyPerformance: WADue Jul 16, 2026Posted Jul 1, 2026
PIE

River Infrastructure Locating and Assessment

Pierce County is seeking a Geotechnical Engineering firm that demonstrates knowledge and expertise in locating hidden, obscured, and buried flood risk reduction assets, such as revetments and levee fe…

Pierce CountyPerformance: WADue Jul 7, 2026Posted Jun 12, 2026
KNG

ES for Stormwater Retrofit Planning for Urban Unincorporated Areas

The purpose of this contract is to provide engineering and related services to King County Department of Natural Resources and Parks, Water and Land Resources Division, Stormwater Services Section (“C…

King CountyPerformance: WADue Jul 16, 2026Posted Jun 17, 2026
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
FED

Irving Peak Lodgepole and Ninemile Crossing Construction

Irving Peak Lodgepole and Ninemile Crossing Construction Solicitation Number 1240BJ26Q0011 Description - The Forest Service is seeking engineering services for construction work associated with upgrad…

FOREST SERVICEPerformance: WADue Jul 23, 2026Posted Jun 29, 2026
KNG

WO Multidisciplinary Eng & Related Svcs for Civil Improvements & Passenger Facil

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

King CountyPerformance: WADue Aug 3, 2026Posted Jun 26, 2026
FED

Irving Peak Lodgepole and Ninemile Crossing Construction

Irving Peak Lodgepole and Ninemile Crossing Construction Solicitation Number 1240BJ26Q0011 Description - The Forest Service is seeking engineering services for construction work associated with upgrad…

FOREST SERVICEPerformance: WADue Jul 23, 2026Posted Jun 24, 2026
WA

DES - South Diagonal - Sidewalk & Storm Drain Repair - REBID

DES - South Diagonal - Sidewalk & Storm Drain Repair - REBID

Performance: WADue Jul 15, 2026Posted Jun 18, 2026
KNG

Heavy Civil GC/CM Services for MDCSO Chelan Wet Weather Storage Project

King County (County) requests final proposals from firms interested in providing Heavy Civil GC/CM Services for Mouth of Duwamish Combined Sewer Overflow (MDCSO) Chelan Wet Weather Storage Project. Th…

King CountyPerformance: WADue Jul 8, 2026Posted Jun 11, 2026
KNG

Heavy Civil GC/CM Services for MDCSO Chelan Wet Weather Storage Project

King County (County) requests final proposals from firms interested in providing Heavy Civil GC/CM Services for Mouth of Duwamish Combined Sewer Overflow (MDCSO) Chelan Wet Weather Storage Project. Th…

King CountyPerformance: WADue Jul 8, 2026Posted Jun 24, 2026

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Top contracting agencies in Washington

City of Seattle9 contracts
Washington7 contracts
King County7 contracts
City of Vancouver4 contracts
DEPT OF THE ARMY4 contracts

Other industries in Washington

Other states for Engineering Services

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