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WTA's Vendor Portal Help & Support

Welcome to the Online Collaboration Portal.

To contact us via e-mail:

Brief help:

Login - Existing organizations that are already registered may login using the 'Login Now' button.

Once your account is signed in, you may log in and use the system to review contracts, review solicitation opportunities, respond to opportunities, submit new contract requests, and review contract information assigned to your account.

Signup - To signup for a new account, select the 'Create Account' button to the left to begin. After you signup, you will be provided with your username and password (typically provided by e-mail).

*CURRENT WTA VENDORS OR PAST BIDDERSYou may already have an account established in this system. Email before creating a new vendor account.

This Software and all data is the property of WTA and is public record pursuant to RCW 42.56. Questions about the software can be directed to

All actions performed in this system will be logged for auditing purposes.


CobbleStone Software 2023 - Collaboration Gateway Version: 22.1.1 (rev 230323)