[marcosdumay]

There's a distribution of companies raising more than 10M there, it's a start. From both, success looks very slightly biased towards 1 and 2 founders.

[sumeno]

Not really, there isn't enough information in the graphs to make that kind of claim. You can say that 45.9% of startups that raise $10m have 1 founder, but unless you know percentage of startups that have 1 founder you don't know anything useful. Maybe 50% of all startups have 1 founder, in which case 1 founder startups are underperforming.

If 99.9% of all startups have 1 founder then the numbers for everything except 1 founder startups look incredible.

[marcosdumay]

Companies raise money before an exit, never after. Thus you can look at the difference between the share of the companies raising money, and the ones exiting.

It's not very reliable, and it may not generalize well. But it's something.