To create a page for your business on LinkedIn, all you need is a personal LinkedIn profile and a verified email address.
To create your business page:
Log into your LinkedIn account.
Copy and paste this link into your browser window: https://www.linkedin.com/company/setup/new/ or click on the Work dropdown in the top menu and click on Create a Company Page.
Choose what type of company you are and follow the on-screen instructions.
For tips and tricks on how to make your company page really stand out, follow the LinkedIn guide to Best Practices: https://business.linkedin.com/marketing-solutions/linkedin-pages/best-practices