I would like to sell a software that has some open source competitors. Therefore I would like to include the source code with the binaries so that the company buying it can modify it as it wishes. The only catch is that the source code will NOT belong to the company, in other words, I would like to maintain the copyright and ownership over the code so I can sell to other companies, etc.
Is there a license name for this kind of model? The buyer can see the code, modify it for its needs, but it cannot take ownership over the code, in other words, it is licensed for a particular use/need and he cannot give or show the code to anyone else.
Buyers are more likely to be companies in that model, in other words, they will be able to take control of the product by modifying the source code, but they will not be able to take ownership of the original code or do anything with it besides the initial purpose they bought it for. It is still closed source. Only the companies that buy the product are entitled to see and modify the code but never to distribute it.