Welcome to the City of Ontario!
We appreciate you choosing the City of Ontario for your business.
Obtaining a business license in Ontario is a simple process and City staff are ready to assist. The Welcome Letter below explains the process and the different departments involved.
Business licenses will be issued once all forms are submitted, all approvals are completed, and fees are paid.
For more information, please call (909) 395-2022 during regular business hours.
Hours of Operations
Mon-Thurs 7:30am - 5:30pm
Fridays 8:00am – 5:00pm