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Finance Home : Vendors


Welcome to the
Maricopa County
Vendor Registration Web Site

Please read this Disclaimer Prior to Registering as a new Vendor

View Form Descriptions
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 VendorApplicationSupport@mail.maricopa.gov 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
Email: finance@mail.maricopa.gov
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Maricopa County || 301 W. Jefferson St. || Phoenix, AZ 85003
602-506-3011