Event badge templates can use the following personalisation field:

• {FirstName} or {First Name} - contact’s first name 
• {LastName} or {Last Name} - contact’s surname 
• {Company}, {CompanyName} or {Company Name} - contact’s company name 
• {Job Title} or {JobTitle} - contact’s job title 
• @Settings.SiteUrl - URL of this Events App installation 

For information on how Badge Templates CSS please follow this link