Business admins can configure your business's profile.
Your business's logo is shown in the signup page used by your employees. To upload your logo, go to Settings > Business Profile. From there you can choose or remove a photo by editing the "Overview" section.
Your business's email gets used as the "reply-to" for all email notifications sent to your organization's employees and for all emails sent to payers for invoicing. Make sure that this is an email address that somebody is monitoring as caregivers will often reply to scheduling notifications sent via email.