Anyone. People who are not signed in have access to a limited version of your profile. They can see your handle, your follower count, your main social platform, your avatar, your first name, your industry, the main location and language of your audience and they can click through to your channel. That's where they can reach out to you.
Logged-in users like Teachers and Students have access to your full profile. Of course, certain sensitive information you provide is never shared or shown on the platform. We don't want people to spam you.