We value Ohio's Military Veterans. Join the State of Ohio Workforce. Click here to apply today! Professional Licenses & Certifications Find 13 Industry categories doing business in Ohio. From each industry card, you can review a list of job titles that require you to have a license or certification. Under each job title, easily find the group that administers each license or certification in Ohio. These websites help you navigate how to obtain a state-issued license or certificate and additional benefits offered to veterans and their spouses.