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HomeAgenciesWSDOT
State AgencytransportationWashington

Washington State Department of Transportation

WSDOT

WSDOT manages 7,000+ miles of state highway, ferries, and multimodal transportation, spending $3B+ annually on construction and engineering. The Seattle metro's growth and I-5/SR-520 corridor investment create consistent large-scale contract opportunities.

$3B+
Annual Contract Spend
$4B+
Annual Budget
18%
Small Business %
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Set-Aside & Small Business History

Washington State Department of Transportation historically awards the following percentages of eligible contract dollars to small and disadvantaged businesses. These figures reflect agency performance against statutory goals and represent real contract opportunities for certified firms.

18%
Small Business
N/A
SDVOSB
N/A
WOSB
N/A
HUBZone
N/A
8(a)

What WSDOT Buys

Washington State Department of Transportation is an active buyer in the following categories. These represent the highest-volume procurement areas based on historical award data.

Highway construction
Bridge construction
Ferry system
Engineering services
Environmental
Traffic systems

How to Get on WSDOT's Radar

The contractors who win WSDOT contracts consistently aren't just responding to solicitations — they're known quantities before the solicitation is published. Here's how to build that position.

1

Register as a WSDOT vendor and obtain prequalification at wsdot.wa.gov/business

2

Apply for Washington DBE certification through WSDOT's Office of Equal Opportunity

3

Contact the WSDOT region office covering your geographic area — 6 regions

4

Monitor Washington's WEBS procurement system at des.wa.gov for WSDOT solicitations

Attend WSDOT's annual DBE outreach events in Seattle and Spokane

Key Programs & Contract Vehicles

01Connecting Washington program
02Move Ahead Washington ($16.9B)
03SR-520 bridge corridor
04Washington State Ferries capital program
05Washington DBE program

Top NAICS Codes at WSDOT

These NAICS codes represent the highest-volume procurement categories at Washington State Department of Transportation. Register these codes in your SAM.gov profile to appear in agency vendor searches.

236220Commercial and Institutional Building Construction
$2.5M avg →
237310Highway, Street, and Bridge Construction
$5.2M avg →
237110Water and Sewer Line Construction
$3.1M avg →
541330Engineering Services
$2.2M avg →
562910Remediation Services
$3.8M avg →

Frequently Asked Questions

How do I register as a vendor with WSDOT?

Washington WEBS + WSDOT prequalification. Ensure your SAM.gov registration is active and includes the NAICS codes that match Washington State Department of Transportation's primary procurement categories before reaching out directly.

What certifications help with WSDOT contracts?

Washington State Department of Transportation awards 18% of eligible contract dollars to small businesses. All applicable SBA certifications are recognized.

What does WSDOT spend on contracts annually?

Washington State Department of Transportation spends approximately $3B+ annually on contracts. The total agency budget is $4B+, with procurement representing the contract-deliverable portion of that spending.

How do I find active WSDOT solicitations?

Monitor SAM.gov and filter by Washington State Department of Transportation as the contracting agency. Set up email notifications for your NAICS codes from this agency. BidEdgeHQ monitors SAM.gov and state portals in real time, scoring every WSDOT solicitation against your ICP profile and delivering WhatsApp alerts for high-match opportunities.