HomepageContact Us (Popup Window)
Site Map | Search | Phone Directory | Departments | Services
Maricopa County Office of Finance  
   Home   |  News   |  Site Map

Finance Home : Vendors

Welcome to the
Maricopa County
Vendor Registration Web Site

Please read this Disclaimer Prior to Registering as a new Vendor

Maricopa County has implemented a new Advantage Enterprise Resource Planning System which, in part, includes procurement and financial system modules. Vendor have the ability to self-maintain their business information on-line. The system will go live on July 6, 2016. Vendor Letter


Advantage Vendor Self Service


If you are trying to register as a vendor with Maricopa County and your business operates outside of the United States, please send an email to  with your name, business name, mailing address and telephone number where you can be reached. 



General Admin Hours
Mon-Fri: 8am-5pm
except holidays 

Maricopa County Department of Finance
301 W. Jefferson, Suite 960
Phoenix, AZ 85003-2906
Ph: 602-506-3561
Fax: 602-506-3439
  Maricopa Home      Site Map      Legal Information      Privacy/Security Policies
Maricopa County Home Page
Maricopa County || 301 W. Jefferson St. || Phoenix, AZ 85003