If the business is in Pinal County and within an incorporated city/town, you would need to check with the city/town about their business license requirements.
If the business is within the unincorporated part of the county, you would need to make sure that the business "fits" the zoning requirements of the business location. Call Community Development to find out at 520-866-6442.
If you need to register your business name, or research an existing business name, please use the following link to the Arizona Secretary of State webpage. Pinal County does not collect nor register business names, etc. This would be done through the Arizona Secretary of State's office.
Go to the Arizona Commerce Authority's free online Checklist Program designed to easily navigate information on what you need to know, who you need to contact, and where you need to go to license your business in Arizona. It also includes contact information for statewide resources and assistance to accelerate your business growth.