A fundamental part of building a startup includes identifying the total addressable market size and the revenue potential that has for your business. This allows an entrepreneur to create a viable business plan and is vital to know when approaching investors. Yet, it can be difficult to understand where your startup fits in the market – especially in relation to potential competition. Understanding what share of the market you can capture by not just understanding who’s selling a similar product, but mainly who’s solving a similar problem can be a challenge.