This may only be done with your permission. The inclusion of a publication in the institution’s repository is a form of reproduction. That right is reserved to the copyright holder(s), which is you.
For example, most universities of applied sciences use a consent form to get your permission to be included in the HBO Kennisbank. If you have entered into an agreement with your work placement company that states your thesis may not be distributed or disclosed to the public, your thesis may still be included in the repository, but must not be disclosed. Then only your name and your thesis title will be available.