You go to the right corner of Excelerate and click on the “sign up” button and fill out the details. Make sure you choose the “Professional” account type and from there you just follow the directions stated. You can see a detailed description and guidance of what awaits you in this blog post: https://excelerate.careers/blog/guides/the-registration-guideline-on-excelerate-for-a-company-to-match-with-a-student/