To become a GPO Contractor you must do the following:

Step 1: Obtain a Unique Entity Identifier

The UEI is a 12-character unique number assigned to all entities who register to do business with the federal government in SAM.

Step 2: Obtain a Data Universal Number

The Data Universal Numbering System (DUNS) number is a unique nine character identification number provided by Dun & Bradstreet (D&B). Visit to register.

Step 3: Register on Contractor Connection

Register your business on GPO’s Contractor Connection system. You will receive an email with a temporary password which will allow you to complete your registration. Vendors may submit bids and proposals without completing this registration. Quotes for Small Purchases are to be submitted using Quick Quote, unless otherwise instructed. You must be registered to access Quick Quote

Step 4: Complete and Submit Required Forms

All forms must be completed, signed, and sent to GPO via email to [email protected] or fax at 202.512.1782.

Step 5: Once the Registration Process is Complete, you will be:

  • issued a Contractor’s Code (GPO I.D. Number)
  • able to send in samples to increase your quality level rating. Click here for instructions.
  • invited to bid on GPO solicitations based on GPO’s evaluation of the information and product samples you provided

As a prospective bidder, you have access to the following resources: