The founders of Jfrog owned 24% of the business at IPO. Viant’s founders owned 93% and Datto’s founder owned 15%. Braze’s founders owned only 4% combined. The range of founder ownership at exit/IPO can be quite wide and is dependent on any number of factors, including the ability to command high valuations during fundraising and capital efficiency.
The list below shows founder ownership of the last 120 SaaS companies at IPO. The median level of founders ownership shown is 14% while the average is 19%. Note the ownership is combined for the corresponding founders shown.