Sign in to your Apple Developer account at developer.apple.com > Click Contact us on the left hand menu > Select Membership and Account > Program enrollment > Send email > Type this,
"I’d like to convert my account from Individual to Organization. Here are the information regarding the company:CEO/Director Name: First and Last Name.
Company Name: Your Company Name, including Ltd or Inc.
Account Type: Organization.
D-U-N-S Number: your Company’s DUNS number.
Address: Your Company’s Legal Address.
Phone Number: Your mobile phone or another phone number where you can be reached"
For your information:
Apple will call to verify your enrollment. They’ll then send you an email with a link to a form for you to fill out more info about your Company."
Organizations enrolling in the Apple Developer Program will need:Legal Entity Status
Your business must be recognized as a legal entity (e.g., a corporation, limited partnership, limited liability company) to enter into the legal terms and obligations of Apple Developer Program. The legal entity name will appear as the developers for apps you distribute on the App Store. Example: Seller: ABC Company, Inc.
A D‑U‑N‑S Number
You must have a D‑U‑N‑S Number so that Apple can verify your organization’s identity and legal entity status. Learn more about what is a DUNS number and how you can get one for your company.
Legal Binding Authority
You must have the legal authority to bind your organization to legal agreements. You must be the organization’s owner/founder, executive team member, senior project lead, or have legal authority granted to you by a senior employee.
A WebsiteYour Company needs a public website and your domain name should be owned by the company.