What is Vendor Self Service?

The Vendor Self Service (VSS) web portal provides vendors with a single entry point to register, identify the commodities/services that their company provides, look for business opportunities and respond to solicitations.

Once a vendor registers, they can receive email confirmation for a new bid, cancelled solicitation, amendment, or notification of award.

The vendor will also be able to view commodity history, ask questions, and browse for awards.

If you need your password reset or need your login information, please call the VSS Help Desk at (207) 624-7889 or email VSS.helpdesk@maine.gov.  If you have general questions about VSS or about a specific solicitation, please call The Division of Procurement Services at (207) 624-7340. 

NOTE TO NON-BIDDING VENDORS: Vendor Self Service is for organizations registering and bidding on State of Maine business opportunities primarily for the purchase of commodities.

If you are an entity who needs to receive a payment from the State of Maine, but you are not bidding on a current business opportunity, then please click on the following link to “forms” on the website of the Office of the State Controller: https://www.maine.gov/osc/forms. From there, refer to the “Vendor” category of forms, and click on “Form Instructions” or “PDF” under item #3, “Vendor Activation/Change (aka State of Maine Substitute W-9)”.  The State of Maine department who is issuing the payment can assist you with this type of registration.

VSS How to Guides:

Production Environment (VSS)

Vendor Access LOG IN: https://mevss.hostams.com/webapp/PRDVSS2X1/AltSelfService

    System Requirements for Vendor Self Service (VSS)

    Advantage 3.9

    NOTE: VSS is only supported for the following web browsers:

    • Internet Explorer (IE) up to version 11
    • Firefox version 29.

    Any other web browsers not listed above, such as Google Chrome, are not supported. An unsupported browser will not be allowed access to VSS.

    IE11 can be downloaded at the following location:


    Firefox 29 can be downloaded at the following location:


    New Effective 12/18/14:

    Internet Explorer Security Settings

    Commodity Codes

    NIGP Codes (RTF)