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Doing business with us

Sound Transit Materials, Technology and Services section Vendor Drop in 1st Tuesday of the month 11 a.m. to noon at Union Station.

Sound Transit's aim is to deliver projects and services using streamlined, cost-effective business practices. We provide a level playing field for businesses to compete for work on transit projects.

Reflecting the region, responsibly

Sound Transit is funded by public tax dollars and it's critical that all contracts are awarded through a fair, legal and thoughtful process.

We're also committed to working with a workforce that reflects the region's diversity and that employs local businesses - including small, minority, women-owned and disadvantaged businesses.

More information on procurement and contracts

More information on diversity programs

Stay current on upcoming opportunities

Vendors and contractors who want to do business with Sound Transit must register with eBid, our online bidding service. Once registered, you'll be able to sign up for notifications for up-to-date contracting opportunities and more.

Sign up for contracting opportunities

Small Works Roster

The Central Puget Sound Regional Transit Authority (Sound Transit) invites qualified and interested firms with experience in various construction trades to participate in its Small Works Roster (SWR). SWR firms may provide new construction, renovation, and refurbishment services for various Sound Transit locations on an “as-needed basis”. This Small Works Roster will serve as a list of firms to perform Sound Transit public works projects estimated to cost less than $300,000. To register for Sound Transit’s Small Works Roster, visit and select Central Puget Sound Regional Transit Authority (Sound Transit) from the MRSC Public Agency list.