Well, once you have registered, you control that! When you're creating your profile, you'll be asked to fill in some details about your company. Things like what you specialize in and where your offices are located. This information is what visitors to the site can see from your profile page, along with any articles you publish or content you may want to upload. If you leave a field blank, it will be blank in your profile. Keep in mind, that the more information you include, the more your profile views will go up.