What is Market Sizing?
Market sizing is estimating the total potential sales or demand for a product or service in a specific market, helping businesses understand the size of the opportunity they aim to capture. You can do this from a top-down or bottom-up (recommended) basis.
Market sizing is important as it demonstrates that your startup has a big enough market to be attractive for you and potential investors. There are a number of different ways to size your market, but the most common approach is to consider total addressable market (TAM), serviceable addressable market (SAM) and serviceable obtainable market (SOM).
