Click the Register button to register a new or existing account.

Vendor Self Service

The ColoradoVSS website allows vendors to manage their account, review and respond to solicitations. Most State agencies and many Institutions of Higher Education post solicitations for goods, services, and construction notices on the ColoradoVSS website

Registration is free. Adding commodity codes during the registration process allows vendors to receive email notifications for new solicitations. Registration instructions are found under the Links section of this page.

For more information on how to do business with the State of Colorado, please click on the ACCESSColorado link at the top of the page.

We recommend using Microsoft Edge as your preferred internet browser for VSS. If you experience performance issues with VSS and Edge, please contact us at, indicating which version of Edge you are using, as well as any specific functionality issues.

In order for your bid to be processed, you will need to submit your bid before the "Closing On" deadline. If you began your bid before the closing time but submit it even one second after the 'Closing On' date and time, you will get an error message as the bidding has closed. Please plan enough time to submit your bid and contact the Buyer for any questions.

The ColoradoVSS Help Desk is available Monday through Friday from 8:00 a.m. to 5:00 p.m. MT by email:


Please note, the Colorado VSS Help Desk will not be available on the following dates:

Friday, December 31, 2021 - New Year's Day
Monday, January 17, 2022 - Martin Luther King, Jr. Day
Monday, February 21, 2022 - President's Day
Monday, May 30, 2022 - Memorial Day
Monday, June 20, 2022 - Juneteenth
Monday, July 4, 2022 - Independence Day
Monday, September 5, 2022 - Labor Day
Monday, October 3, 2022 - Frances Xavier Cabrini Day
Friday, November 11, 2022 - Veterans Day
Thursday, November 24, 2022 - Thanksgiving Day
Monday, December 26, 2022 - Christmas Day

NOTICE: As the concern over COVID-19 increases, our employees are self-quarantining in order to protect each other in the workplace. Please contact the VSS Help Desk by email at as our team temporarily transitions to deliver support remotely. At this time, we are not able to take initial issue contact via telephone. We appreciate your patience and understanding.

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Click on the links below to access the ColoradoVSS Help site: