How to get market size data for calculating TAM?
Prasad Lingawar
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Tyler Cole@tyler_co
Take a look at competitors and related companies. Have they disclosed any data? Or any articles written about them, with facts researched by journalists?
You can also do a top-down analysis trying to find the data from the likes of Gartner or Forrester (and try not to pay an arm and leg).
Or you can also do a bottoms-up approach, how big is your addressable market, how much are they willing to pay etc.
If you are truly creating a category from scratch (many people think they are, but in reality it's rare), then you need to find 'traditionally' similar markets, and extrapolate/best guess your data on comparisons.
At the end of the day there's a mutual understanding that TAM data is not an exact science.
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