What are similarities between public limited and private limited companies?

What are similarities between public limited and private limited companies?
Both companies are incorporated, meaning that they have separate legal identies to the owners of the business, they also have limited liability, where shareholders will only lose the amount of money they invested into the business, if the business became bankrupt.

To set up these companies you must sent two documents, a Memorandum of Association, giving the name, address and objectives of the business, along with an Article of Association, describing the internal rules of the company i.e. how it will be run.

The final similarity is that both companies are owned by shareholders, therefore the more shares you own in these businesses, the more control you have of these businesses. The difference here is that in private limited companies, all existing shareholders must agree before any more shares in the business are sold, and in public limited companies, anyone can buy shares, if the company can find people who want to sell their shares for them.