Number of founders - statistics

I've done some research on how many founders successful technology companies have. Here are the numbers for 100 publicly traded companies

The number of sole founder companies is probably slightly exaggerated because sometimes one person is so much more prominent that the others are never mentioned. I did a little double checking though. Another important thing is that some companies were omitted because I knew only that they had several founders but I wasn't able to find out exactly how many. I suspect there are more companies with 4, 5, 6 or more founders.

Unfortunately without numbers about failed companies we still don't know the success ratio of each frequency group, which is what's most interesting for startup founders here. It is well possible that sole founders fail 10 times as often as 2 founder companies, or vice versa. For anyone interested in double checking (yes I'm sure there are errors ;-) here's the full list:

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