How do I renew my apple developer membership from one membership type to another?
Here's the info from Apple Dev Page:

If I am enrolled as an individual, can I change to a company membership?
Yes. To convert your iOS Developer Program membership from an individual to a company, please contact us. You can make this change only if you are the founder/co-founder of the company. As part of the conversion process, you may be asked to submit business documents to verify your company's identity.

There's a link to contact page in the link I provided.