Every business is started with a view to make gains and create wealth for self as well as for the shareholders. Thus rising business income is one criterion that every Investor and Entrepreneur looks forward to. Any Business house can only sustain when their Revenue sees growth.

Thus there can be a different kind of Business Model that each business can have but the motto is the same to increase Revenue and have growth in the business.

So different Kind of Revenues or Income can be :

https://www.elearnmarkets.com/blog/4-different-kinds-of-business-income/